about summary refs log tree commit diff
path: root/vendor/modernc.org/libc/termios
diff options
context:
space:
mode:
authorEmile <git@emile.space>2024-08-16 19:50:26 +0200
committerEmile <git@emile.space>2024-08-16 19:50:26 +0200
commit1a57267a17c2fc17fb6e104846fabc3e363c326c (patch)
tree1e574e3a80622086dc3c81ff9cba65ef7049b1a9 /vendor/modernc.org/libc/termios
initial commit
Diffstat (limited to 'vendor/modernc.org/libc/termios')
-rw-r--r--vendor/modernc.org/libc/termios/capi_darwin_amd64.go7
-rw-r--r--vendor/modernc.org/libc/termios/capi_darwin_arm64.go7
-rw-r--r--vendor/modernc.org/libc/termios/capi_freebsd_386.go5
-rw-r--r--vendor/modernc.org/libc/termios/capi_freebsd_amd64.go5
-rw-r--r--vendor/modernc.org/libc/termios/capi_freebsd_arm.go5
-rw-r--r--vendor/modernc.org/libc/termios/capi_freebsd_arm64.go5
-rw-r--r--vendor/modernc.org/libc/termios/capi_illumos_amd64.go5
-rw-r--r--vendor/modernc.org/libc/termios/capi_linux_386.go5
-rw-r--r--vendor/modernc.org/libc/termios/capi_linux_amd64.go5
-rw-r--r--vendor/modernc.org/libc/termios/capi_linux_arm.go5
-rw-r--r--vendor/modernc.org/libc/termios/capi_linux_arm64.go5
-rw-r--r--vendor/modernc.org/libc/termios/capi_linux_loong64.go5
-rw-r--r--vendor/modernc.org/libc/termios/capi_linux_mips64le.go5
-rw-r--r--vendor/modernc.org/libc/termios/capi_linux_ppc64le.go5
-rw-r--r--vendor/modernc.org/libc/termios/capi_linux_riscv64.go5
-rw-r--r--vendor/modernc.org/libc/termios/capi_linux_s390x.go5
-rw-r--r--vendor/modernc.org/libc/termios/capi_netbsd_amd64.go5
-rw-r--r--vendor/modernc.org/libc/termios/capi_netbsd_arm.go5
-rw-r--r--vendor/modernc.org/libc/termios/capi_openbsd_386.go5
-rw-r--r--vendor/modernc.org/libc/termios/capi_openbsd_amd64.go5
-rw-r--r--vendor/modernc.org/libc/termios/capi_openbsd_arm64.go5
-rw-r--r--vendor/modernc.org/libc/termios/termios_darwin_amd64.go1567
-rw-r--r--vendor/modernc.org/libc/termios/termios_darwin_arm64.go1570
-rw-r--r--vendor/modernc.org/libc/termios/termios_freebsd_386.go1002
-rw-r--r--vendor/modernc.org/libc/termios/termios_freebsd_amd64.go1010
-rw-r--r--vendor/modernc.org/libc/termios/termios_freebsd_arm.go951
-rw-r--r--vendor/modernc.org/libc/termios/termios_freebsd_arm64.go1010
-rw-r--r--vendor/modernc.org/libc/termios/termios_illumos_amd64.go2689
-rw-r--r--vendor/modernc.org/libc/termios/termios_linux_386.go1007
-rw-r--r--vendor/modernc.org/libc/termios/termios_linux_amd64.go1024
-rw-r--r--vendor/modernc.org/libc/termios/termios_linux_arm.go1066
-rw-r--r--vendor/modernc.org/libc/termios/termios_linux_arm64.go1092
-rw-r--r--vendor/modernc.org/libc/termios/termios_linux_loong64.go1184
-rw-r--r--vendor/modernc.org/libc/termios/termios_linux_mips64le.go1024
-rw-r--r--vendor/modernc.org/libc/termios/termios_linux_ppc64le.go1238
-rw-r--r--vendor/modernc.org/libc/termios/termios_linux_riscv64.go1196
-rw-r--r--vendor/modernc.org/libc/termios/termios_linux_s390x.go1023
-rw-r--r--vendor/modernc.org/libc/termios/termios_netbsd_amd64.go733
-rw-r--r--vendor/modernc.org/libc/termios/termios_netbsd_arm.go728
-rw-r--r--vendor/modernc.org/libc/termios/termios_openbsd_386.go779
-rw-r--r--vendor/modernc.org/libc/termios/termios_openbsd_amd64.go788
-rw-r--r--vendor/modernc.org/libc/termios/termios_openbsd_arm64.go786
42 files changed, 23576 insertions, 0 deletions
diff --git a/vendor/modernc.org/libc/termios/capi_darwin_amd64.go b/vendor/modernc.org/libc/termios/capi_darwin_amd64.go
new file mode 100644
index 0000000..32f78c4
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/capi_darwin_amd64.go
@@ -0,0 +1,7 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_darwin_amd64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+var CAPI = map[string]struct{}{
+	"__darwin_check_fd_set_overflow": {},
+}
diff --git a/vendor/modernc.org/libc/termios/capi_darwin_arm64.go b/vendor/modernc.org/libc/termios/capi_darwin_arm64.go
new file mode 100644
index 0000000..f663be1
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/capi_darwin_arm64.go
@@ -0,0 +1,7 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_darwin_arm64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+var CAPI = map[string]struct{}{
+	"__darwin_check_fd_set_overflow": {},
+}
diff --git a/vendor/modernc.org/libc/termios/capi_freebsd_386.go b/vendor/modernc.org/libc/termios/capi_freebsd_386.go
new file mode 100644
index 0000000..711998d
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/capi_freebsd_386.go
@@ -0,0 +1,5 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_freebsd_386.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+var CAPI = map[string]struct{}{}
diff --git a/vendor/modernc.org/libc/termios/capi_freebsd_amd64.go b/vendor/modernc.org/libc/termios/capi_freebsd_amd64.go
new file mode 100644
index 0000000..db09804
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/capi_freebsd_amd64.go
@@ -0,0 +1,5 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_freebsd_amd64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+var CAPI = map[string]struct{}{}
diff --git a/vendor/modernc.org/libc/termios/capi_freebsd_arm.go b/vendor/modernc.org/libc/termios/capi_freebsd_arm.go
new file mode 100644
index 0000000..8899848
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/capi_freebsd_arm.go
@@ -0,0 +1,5 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_freebsd_arm.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+var CAPI = map[string]struct{}{}
diff --git a/vendor/modernc.org/libc/termios/capi_freebsd_arm64.go b/vendor/modernc.org/libc/termios/capi_freebsd_arm64.go
new file mode 100644
index 0000000..db09804
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/capi_freebsd_arm64.go
@@ -0,0 +1,5 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_freebsd_amd64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+var CAPI = map[string]struct{}{}
diff --git a/vendor/modernc.org/libc/termios/capi_illumos_amd64.go b/vendor/modernc.org/libc/termios/capi_illumos_amd64.go
new file mode 100644
index 0000000..b922575
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/capi_illumos_amd64.go
@@ -0,0 +1,5 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_illumos_amd64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+var CAPI = map[string]struct{}{}
diff --git a/vendor/modernc.org/libc/termios/capi_linux_386.go b/vendor/modernc.org/libc/termios/capi_linux_386.go
new file mode 100644
index 0000000..bc8ddcb
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/capi_linux_386.go
@@ -0,0 +1,5 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o termios/termios_linux_386.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+var CAPI = map[string]struct{}{}
diff --git a/vendor/modernc.org/libc/termios/capi_linux_amd64.go b/vendor/modernc.org/libc/termios/capi_linux_amd64.go
new file mode 100644
index 0000000..193dc60
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/capi_linux_amd64.go
@@ -0,0 +1,5 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_linux_amd64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+var CAPI = map[string]struct{}{}
diff --git a/vendor/modernc.org/libc/termios/capi_linux_arm.go b/vendor/modernc.org/libc/termios/capi_linux_arm.go
new file mode 100644
index 0000000..be22650
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/capi_linux_arm.go
@@ -0,0 +1,5 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o termios/termios_linux_arm.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+var CAPI = map[string]struct{}{}
diff --git a/vendor/modernc.org/libc/termios/capi_linux_arm64.go b/vendor/modernc.org/libc/termios/capi_linux_arm64.go
new file mode 100644
index 0000000..f94925e
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/capi_linux_arm64.go
@@ -0,0 +1,5 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o termios/termios_linux_arm64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+var CAPI = map[string]struct{}{}
diff --git a/vendor/modernc.org/libc/termios/capi_linux_loong64.go b/vendor/modernc.org/libc/termios/capi_linux_loong64.go
new file mode 100644
index 0000000..b240607
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/capi_linux_loong64.go
@@ -0,0 +1,5 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_linux_loong64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+var CAPI = map[string]struct{}{}
diff --git a/vendor/modernc.org/libc/termios/capi_linux_mips64le.go b/vendor/modernc.org/libc/termios/capi_linux_mips64le.go
new file mode 100644
index 0000000..193dc60
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/capi_linux_mips64le.go
@@ -0,0 +1,5 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_linux_amd64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+var CAPI = map[string]struct{}{}
diff --git a/vendor/modernc.org/libc/termios/capi_linux_ppc64le.go b/vendor/modernc.org/libc/termios/capi_linux_ppc64le.go
new file mode 100644
index 0000000..0f0a47b
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/capi_linux_ppc64le.go
@@ -0,0 +1,5 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_linux_ppc64le.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+var CAPI = map[string]struct{}{}
diff --git a/vendor/modernc.org/libc/termios/capi_linux_riscv64.go b/vendor/modernc.org/libc/termios/capi_linux_riscv64.go
new file mode 100644
index 0000000..6edfd29
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/capi_linux_riscv64.go
@@ -0,0 +1,5 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o termios/termios_linux_riscv64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+var CAPI = map[string]struct{}{}
diff --git a/vendor/modernc.org/libc/termios/capi_linux_s390x.go b/vendor/modernc.org/libc/termios/capi_linux_s390x.go
new file mode 100644
index 0000000..b4b71f1
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/capi_linux_s390x.go
@@ -0,0 +1,5 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o termios/termios_linux_s390x.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+var CAPI = map[string]struct{}{}
diff --git a/vendor/modernc.org/libc/termios/capi_netbsd_amd64.go b/vendor/modernc.org/libc/termios/capi_netbsd_amd64.go
new file mode 100644
index 0000000..fcd922b
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/capi_netbsd_amd64.go
@@ -0,0 +1,5 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_netbsd_amd64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+var CAPI = map[string]struct{}{}
diff --git a/vendor/modernc.org/libc/termios/capi_netbsd_arm.go b/vendor/modernc.org/libc/termios/capi_netbsd_arm.go
new file mode 100644
index 0000000..91d58fb
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/capi_netbsd_arm.go
@@ -0,0 +1,5 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_netbsd_arm.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+var CAPI = map[string]struct{}{}
diff --git a/vendor/modernc.org/libc/termios/capi_openbsd_386.go b/vendor/modernc.org/libc/termios/capi_openbsd_386.go
new file mode 100644
index 0000000..c030518
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/capi_openbsd_386.go
@@ -0,0 +1,5 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_openbsd_386.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+var CAPI = map[string]struct{}{}
diff --git a/vendor/modernc.org/libc/termios/capi_openbsd_amd64.go b/vendor/modernc.org/libc/termios/capi_openbsd_amd64.go
new file mode 100644
index 0000000..07936e9
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/capi_openbsd_amd64.go
@@ -0,0 +1,5 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_openbsd_amd64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+var CAPI = map[string]struct{}{}
diff --git a/vendor/modernc.org/libc/termios/capi_openbsd_arm64.go b/vendor/modernc.org/libc/termios/capi_openbsd_arm64.go
new file mode 100644
index 0000000..c81df66
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/capi_openbsd_arm64.go
@@ -0,0 +1,5 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_openbsd_arm64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+var CAPI = map[string]struct{}{}
diff --git a/vendor/modernc.org/libc/termios/termios_darwin_amd64.go b/vendor/modernc.org/libc/termios/termios_darwin_amd64.go
new file mode 100644
index 0000000..82928be
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/termios_darwin_amd64.go
@@ -0,0 +1,1567 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_darwin_amd64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+import (
+	"math"
+	"reflect"
+	"sync/atomic"
+	"unsafe"
+)
+
+var _ = math.Pi
+var _ reflect.Kind
+var _ atomic.Value
+var _ unsafe.Pointer
+
+const (
+	ALTWERASE                              = 0x00000200 // termios.h:249:1:
+	B0                                     = 0          // termios.h:291:1:
+	B110                                   = 110        // termios.h:294:1:
+	B115200                                = 115200     // termios.h:313:1:
+	B1200                                  = 1200       // termios.h:300:1:
+	B134                                   = 134        // termios.h:295:1:
+	B14400                                 = 14400      // termios.h:309:1:
+	B150                                   = 150        // termios.h:296:1:
+	B1800                                  = 1800       // termios.h:301:1:
+	B19200                                 = 19200      // termios.h:305:1:
+	B200                                   = 200        // termios.h:297:1:
+	B230400                                = 230400     // termios.h:314:1:
+	B2400                                  = 2400       // termios.h:302:1:
+	B28800                                 = 28800      // termios.h:310:1:
+	B300                                   = 300        // termios.h:298:1:
+	B38400                                 = 38400      // termios.h:306:1:
+	B4800                                  = 4800       // termios.h:303:1:
+	B50                                    = 50         // termios.h:292:1:
+	B57600                                 = 57600      // termios.h:311:1:
+	B600                                   = 600        // termios.h:299:1:
+	B7200                                  = 7200       // termios.h:308:1:
+	B75                                    = 75         // termios.h:293:1:
+	B76800                                 = 76800      // termios.h:312:1:
+	B9600                                  = 9600       // termios.h:304:1:
+	BRKINT                                 = 0x00000002 // termios.h:120:1:
+	BS0                                    = 0x00000000 // termios.h:190:1:
+	BS1                                    = 0x00008000 // termios.h:191:1:
+	BSDLY                                  = 0x00008000 // termios.h:159:1:
+	CBRK                                   = 255        // ttydefaults.h:107:1:
+	CCAR_OFLOW                             = 0x00100000 // termios.h:222:1:
+	CCTS_OFLOW                             = 0x00010000 // termios.h:217:1:
+	CDISCARD                               = 15         // ttydefaults.h:102:1:
+	CDSR_OFLOW                             = 0x00080000 // termios.h:221:1:
+	CDSUSP                                 = 25         // ttydefaults.h:98:1:
+	CDTR_IFLOW                             = 0x00040000 // termios.h:220:1:
+	CEOF                                   = 4          // ttydefaults.h:88:1:
+	CEOL                                   = 0xff       // ttydefaults.h:89:1:
+	CEOT                                   = 4          // ttydefaults.h:105:1:
+	CERASE                                 = 0177       // ttydefaults.h:90:1:
+	CFLUSH                                 = 15         // ttydefaults.h:109:1:
+	CIGNORE                                = 0x00000001 // termios.h:203:1:
+	CINTR                                  = 3          // ttydefaults.h:91:1:
+	CKILL                                  = 21         // ttydefaults.h:93:1:
+	CLNEXT                                 = 22         // ttydefaults.h:101:1:
+	CLOCAL                                 = 0x00008000 // termios.h:215:1:
+	CMIN                                   = 1          // ttydefaults.h:94:1:
+	CQUIT                                  = 034        // ttydefaults.h:95:1:
+	CR0                                    = 0x00000000 // termios.h:184:1:
+	CR1                                    = 0x00001000 // termios.h:185:1:
+	CR2                                    = 0x00002000 // termios.h:186:1:
+	CR3                                    = 0x00003000 // termios.h:187:1:
+	CRDLY                                  = 0x00003000 // termios.h:157:1:
+	CREAD                                  = 0x00000800 // termios.h:211:1:
+	CREPRINT                               = 18         // ttydefaults.h:104:1:
+	CRPRNT                                 = 18         // ttydefaults.h:108:1:
+	CRTSCTS                                = 196608     // termios.h:218:1:
+	CRTS_IFLOW                             = 0x00020000 // termios.h:219:1:
+	CS5                                    = 0x00000000 // termios.h:206:1:
+	CS6                                    = 0x00000100 // termios.h:207:1:
+	CS7                                    = 0x00000200 // termios.h:208:1:
+	CS8                                    = 0x00000300 // termios.h:209:1:
+	CSIZE                                  = 0x00000300 // termios.h:205:1:
+	CSTART                                 = 17         // ttydefaults.h:99:1:
+	CSTATUS                                = 20         // ttydefaults.h:92:1:
+	CSTOP                                  = 19         // ttydefaults.h:100:1:
+	CSTOPB                                 = 0x00000400 // termios.h:210:1:
+	CSUSP                                  = 26         // ttydefaults.h:96:1:
+	CTIME                                  = 0          // ttydefaults.h:97:1:
+	CWERASE                                = 23         // ttydefaults.h:103:1:
+	ECHO                                   = 0x00000008 // termios.h:240:1:
+	ECHOCTL                                = 0x00000040 // termios.h:244:1:
+	ECHOE                                  = 0x00000002 // termios.h:238:1:
+	ECHOK                                  = 0x00000004 // termios.h:239:1:
+	ECHOKE                                 = 0x00000001 // termios.h:236:1:
+	ECHONL                                 = 0x00000010 // termios.h:241:1:
+	ECHOPRT                                = 0x00000020 // termios.h:243:1:
+	EXTA                                   = 19200      // termios.h:315:1:
+	EXTB                                   = 38400      // termios.h:316:1:
+	EXTPROC                                = 0x00000800 // termios.h:253:1:
+	FF0                                    = 0x00000000 // termios.h:188:1:
+	FF1                                    = 0x00004000 // termios.h:189:1:
+	FFDLY                                  = 0x00004000 // termios.h:158:1:
+	FLUSHO                                 = 0x00800000 // termios.h:257:1:
+	HUPCL                                  = 0x00004000 // termios.h:214:1:
+	ICANON                                 = 0x00000100 // termios.h:247:1:
+	ICRNL                                  = 0x00000100 // termios.h:127:1:
+	IEXTEN                                 = 0x00000400 // termios.h:251:1:
+	IGNBRK                                 = 0x00000001 // termios.h:119:1:
+	IGNCR                                  = 0x00000080 // termios.h:126:1:
+	IGNPAR                                 = 0x00000004 // termios.h:121:1:
+	IMAXBEL                                = 0x00002000 // termios.h:132:1:
+	INLCR                                  = 0x00000040 // termios.h:125:1:
+	INPCK                                  = 0x00000010 // termios.h:123:1:
+	IOCPARM_MASK                           = 0x1fff     // ioccom.h:74:1:
+	IOCPARM_MAX                            = 8192       // ioccom.h:79:1:
+	ISIG                                   = 0x00000080 // termios.h:246:1:
+	ISTRIP                                 = 0x00000020 // termios.h:124:1:
+	IUTF8                                  = 0x00004000 // termios.h:133:1:
+	IXANY                                  = 0x00000800 // termios.h:130:1:
+	IXOFF                                  = 0x00000400 // termios.h:129:1:
+	IXON                                   = 0x00000200 // termios.h:128:1:
+	MDMBUF                                 = 0x00100000 // termios.h:223:1:
+	NCCS                                   = 20         // termios.h:108:1:
+	NL0                                    = 0x00000000 // termios.h:173:1:
+	NL1                                    = 0x00000100 // termios.h:174:1:
+	NL2                                    = 0x00000200 // termios.h:176:1:
+	NL3                                    = 0x00000300 // termios.h:177:1:
+	NLDLY                                  = 0x00000300 // termios.h:155:1:
+	NOFLSH                                 = 0x80000000 // termios.h:261:1:
+	NOKERNINFO                             = 0x02000000 // termios.h:258:1:
+	OCRNL                                  = 0x00000010 // termios.h:151:1:
+	OFDEL                                  = 0x00020000 // termios.h:161:1:
+	OFILL                                  = 0x00000080 // termios.h:154:1:
+	ONLCR                                  = 0x00000002 // termios.h:140:1:
+	ONLRET                                 = 0x00000040 // termios.h:153:1:
+	ONOCR                                  = 0x00000020 // termios.h:152:1:
+	ONOEOT                                 = 0x00000008 // termios.h:143:1:
+	OPOST                                  = 0x00000001 // termios.h:139:1:
+	OXTABS                                 = 0x00000004 // termios.h:142:1:
+	PARENB                                 = 0x00001000 // termios.h:212:1:
+	PARMRK                                 = 0x00000008 // termios.h:122:1:
+	PARODD                                 = 0x00002000 // termios.h:213:1:
+	PENDIN                                 = 0x20000000 // termios.h:259:1:
+	PPPDISC                                = 5          // ttycom.h:171:1:
+	SLIPDISC                               = 4          // ttycom.h:170:1:
+	TAB0                                   = 0x00000000 // termios.h:179:1:
+	TAB1                                   = 0x00000400 // termios.h:180:1:
+	TAB2                                   = 0x00000800 // termios.h:181:1:
+	TAB3                                   = 0x00000004 // termios.h:183:1:
+	TABDLY                                 = 0x00000c04 // termios.h:156:1:
+	TABLDISC                               = 3          // ttycom.h:169:1:
+	TCIFLUSH                               = 1          // termios.h:320:1:
+	TCIOFF                                 = 3          // termios.h:325:1:
+	TCIOFLUSH                              = 3          // termios.h:322:1:
+	TCION                                  = 4          // termios.h:326:1:
+	TCOFLUSH                               = 2          // termios.h:321:1:
+	TCOOFF                                 = 1          // termios.h:323:1:
+	TCOON                                  = 2          // termios.h:324:1:
+	TCSADRAIN                              = 1          // termios.h:282:1:
+	TCSAFLUSH                              = 2          // termios.h:283:1:
+	TCSANOW                                = 0          // termios.h:281:1:
+	TCSASOFT                               = 0x10       // termios.h:285:1:
+	TIOCM_CAR                              = 0100       // ttycom.h:97:1:
+	TIOCM_CD                               = 64         // ttycom.h:98:1:
+	TIOCM_CTS                              = 0040       // ttycom.h:96:1:
+	TIOCM_DSR                              = 0400       // ttycom.h:101:1:
+	TIOCM_DTR                              = 0002       // ttycom.h:92:1:
+	TIOCM_LE                               = 0001       // ttycom.h:91:1:
+	TIOCM_RI                               = 128        // ttycom.h:100:1:
+	TIOCM_RNG                              = 0200       // ttycom.h:99:1:
+	TIOCM_RTS                              = 0004       // ttycom.h:93:1:
+	TIOCM_SR                               = 0020       // ttycom.h:95:1:
+	TIOCM_ST                               = 0010       // ttycom.h:94:1:
+	TIOCPKT_DATA                           = 0x00       // ttycom.h:128:1:
+	TIOCPKT_DOSTOP                         = 0x20       // ttycom.h:134:1:
+	TIOCPKT_FLUSHREAD                      = 0x01       // ttycom.h:129:1:
+	TIOCPKT_FLUSHWRITE                     = 0x02       // ttycom.h:130:1:
+	TIOCPKT_IOCTL                          = 0x40       // ttycom.h:135:1:
+	TIOCPKT_NOSTOP                         = 0x10       // ttycom.h:133:1:
+	TIOCPKT_START                          = 0x08       // ttycom.h:132:1:
+	TIOCPKT_STOP                           = 0x04       // ttycom.h:131:1:
+	TOSTOP                                 = 0x00400000 // termios.h:255:1:
+	TTYDEF_CFLAG                           = 19200      // ttydefaults.h:81:1:
+	TTYDEF_IFLAG                           = 11010      // ttydefaults.h:78:1:
+	TTYDEF_LFLAG                           = 1483       // ttydefaults.h:80:1:
+	TTYDEF_OFLAG                           = 3          // ttydefaults.h:79:1:
+	TTYDEF_SPEED                           = 9600       // ttydefaults.h:82:1:
+	TTYDISC                                = 0          // ttycom.h:168:1:
+	VDISCARD                               = 15         // termios.h:100:1:
+	VDSUSP                                 = 11         // termios.h:94:1:
+	VEOF                                   = 0          // termios.h:76:1:
+	VEOL                                   = 1          // termios.h:77:1:
+	VEOL2                                  = 2          // termios.h:79:1:
+	VERASE                                 = 3          // termios.h:81:1:
+	VINTR                                  = 8          // termios.h:90:1:
+	VKILL                                  = 5          // termios.h:85:1:
+	VLNEXT                                 = 14         // termios.h:99:1:
+	VMIN                                   = 16         // termios.h:102:1:
+	VQUIT                                  = 9          // termios.h:91:1:
+	VREPRINT                               = 6          // termios.h:87:1:
+	VSTART                                 = 12         // termios.h:96:1:
+	VSTATUS                                = 18         // termios.h:105:1:
+	VSTOP                                  = 13         // termios.h:97:1:
+	VSUSP                                  = 10         // termios.h:92:1:
+	VT0                                    = 0x00000000 // termios.h:192:1:
+	VT1                                    = 0x00010000 // termios.h:193:1:
+	VTDLY                                  = 0x00010000 // termios.h:160:1:
+	VTIME                                  = 17         // termios.h:103:1:
+	VWERASE                                = 4          // termios.h:83:1:
+	X_BSD_I386__TYPES_H_                   = 0          // _types.h:29:1:
+	X_BSD_MACHINE__TYPES_H_                = 0          // _types.h:29:1:
+	X_CDEFS_H_                             = 0          // cdefs.h:68:1:
+	X_DARWIN_FEATURE_64_BIT_INODE          = 1          // cdefs.h:745:1:
+	X_DARWIN_FEATURE_ONLY_UNIX_CONFORMANCE = 1          // cdefs.h:771:1:
+	X_DARWIN_FEATURE_UNIX_CONFORMANCE      = 3          // cdefs.h:779:1:
+	X_FILE_OFFSET_BITS                     = 64         // <builtin>:25:1:
+	X_FORTIFY_SOURCE                       = 2          // _types.h:65:1:
+	X_LP64                                 = 1          // <predefined>:1:1:
+	X_Nonnull                              = 0          // cdefs.h:243:1:
+	X_Null_unspecified                     = 0          // cdefs.h:246:1:
+	X_Nullable                             = 0          // cdefs.h:240:1:
+	X_PID_T                                = 0          // _pid_t.h:29:1:
+	X_SYS_IOCCOM_H_                        = 0          // ioccom.h:65:1:
+	X_SYS_TERMIOS_H_                       = 0          // termios.h:65:1:
+	X_SYS_TTYCOM_H_                        = 0          // ttycom.h:70:1:
+	X_SYS_TTYDEFAULTS_H_                   = 0          // ttydefaults.h:73:1:
+	X_SYS__PTHREAD_TYPES_H_                = 0          // _pthread_types.h:30:1:
+	X_SYS__TYPES_H_                        = 0          // _types.h:30:1:
+)
+
+type Ptrdiff_t = int64 /* <builtin>:3:26 */
+
+type Size_t = uint64 /* <builtin>:9:23 */
+
+type Wchar_t = int32 /* <builtin>:15:24 */
+
+type X__int128_t = struct {
+	Flo int64
+	Fhi int64
+} /* <builtin>:21:43 */ // must match modernc.org/mathutil.Int128
+type X__uint128_t = struct {
+	Flo uint64
+	Fhi uint64
+} /* <builtin>:22:44 */ // must match modernc.org/mathutil.Int128
+
+type X__builtin_va_list = uintptr /* <builtin>:46:14 */
+type X__float128 = float64        /* <builtin>:47:21 */
+
+var X__darwin_check_fd_set_overflow uintptr /* <builtin>:146:5: */
+
+// Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+//
+// @APPLE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this
+// file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_LICENSE_HEADER_END@
+
+// Copyright (c) 2000-2018 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+// Copyright 1995 NeXT Computer, Inc. All rights reserved.
+// Copyright (c) 1991, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// This code is derived from software contributed to Berkeley by
+// Berkeley Software Design, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. All advertising materials mentioning features or use of this software
+//    must display the following acknowledgement:
+//	This product includes software developed by the University of
+//	California, Berkeley and its contributors.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)cdefs.h	8.8 (Berkeley) 1/9/95
+
+// This SDK is designed to work with clang and specific versions of
+// gcc >= 4.0 with Apple's patch sets
+
+// Compatibility with compilers and environments that don't support compiler
+// feature checking function-like macros.
+
+// The __CONCAT macro is used to concatenate parts of symbol names, e.g.
+// with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
+// The __CONCAT macro is a bit tricky -- make sure you don't put spaces
+// in between its arguments.  __CONCAT can also concatenate double-quoted
+// strings produced by the __STRING macro, but this only works with ANSI C.
+
+// In non-ANSI C environments, new programs will want ANSI-only C keywords
+// deleted from the program and old programs will want them left alone.
+// When using a compiler other than gcc, programs using the ANSI C keywords
+// const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS.
+// When using "gcc -traditional", we assume that this is the intent; if
+// __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone.
+
+// __unused denotes variables and functions that may not be used, preventing
+// the compiler from warning about it if not used.
+
+// __used forces variables and functions to be included even if it appears
+// to the compiler that they are not used (and would thust be discarded).
+
+// __cold marks code used for debugging or that is rarely taken
+// and tells the compiler to optimize for size and outline code.
+
+// __deprecated causes the compiler to produce a warning when encountering
+// code using the deprecated functionality.
+// __deprecated_msg() does the same, and compilers that support it will print
+// a message along with the deprecation warning.
+// This may require turning on such warning with the -Wdeprecated flag.
+// __deprecated_enum_msg() should be used on enums, and compilers that support
+// it will print the deprecation warning.
+// __kpi_deprecated() specifically indicates deprecation of kernel programming
+// interfaces in Kernel.framework used by KEXTs.
+
+// __unavailable causes the compiler to error out when encountering
+// code using the tagged function of variable.
+
+// Delete pseudo-keywords wherever they are not available or needed.
+
+// We use `__restrict' as a way to define the `restrict' type qualifier
+// without disturbing older software that is unaware of C99 keywords.
+
+// Compatibility with compilers and environments that don't support the
+// nullability feature.
+
+// __disable_tail_calls causes the compiler to not perform tail call
+// optimization inside the marked function.
+
+// __not_tail_called causes the compiler to prevent tail call optimization
+// on statically bound calls to the function.  It has no effect on indirect
+// calls.  Virtual functions, objective-c methods, and functions marked as
+// "always_inline" cannot be marked as __not_tail_called.
+
+// __result_use_check warns callers of a function that not using the function
+// return value is a bug, i.e. dismissing malloc() return value results in a
+// memory leak.
+
+// __swift_unavailable causes the compiler to mark a symbol as specifically
+// unavailable in Swift, regardless of any other availability in C.
+
+// __abortlike is the attribute to put on functions like abort() that are
+// typically used to mark assertions. These optimize the codegen
+// for outlining while still maintaining debugability.
+
+// Declaring inline functions within headers is error-prone due to differences
+// across various versions of the C language and extensions.  __header_inline
+// can be used to declare inline functions within system headers.  In cases
+// where you want to force inlining instead of letting the compiler make
+// the decision, you can use __header_always_inline.
+//
+// Be aware that using inline for functions which compilers may also provide
+// builtins can behave differently under various compilers.  If you intend to
+// provide an inline version of such a function, you may want to use a macro
+// instead.
+//
+// The check for !__GNUC__ || __clang__ is because gcc doesn't correctly
+// support c99 inline in some cases:
+// http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55965
+
+// Compiler-dependent macros that bracket portions of code where the
+// "-Wunreachable-code" warning should be ignored. Please use sparingly.
+
+// Compiler-dependent macros to declare that functions take printf-like
+// or scanf-like arguments.  They are null except for versions of gcc
+// that are known to support the features properly.  Functions declared
+// with these attributes will cause compilation warnings if there is a
+// mismatch between the format string and subsequent function parameter
+// types.
+
+// Source compatibility only, ID string not emitted in object file
+
+// __alloc_size can be used to label function arguments that represent the
+// size of memory that the function allocates and returns. The one-argument
+// form labels a single argument that gives the allocation size (where the
+// arguments are numbered from 1):
+//
+// void	*malloc(size_t __size) __alloc_size(1);
+//
+// The two-argument form handles the case where the size is calculated as the
+// product of two arguments:
+//
+// void	*calloc(size_t __count, size_t __size) __alloc_size(1,2);
+
+// COMPILATION ENVIRONMENTS -- see compat(5) for additional detail
+//
+// DEFAULT	By default newly complied code will get POSIX APIs plus
+//		Apple API extensions in scope.
+//
+//		Most users will use this compilation environment to avoid
+//		behavioral differences between 32 and 64 bit code.
+//
+// LEGACY	Defining _NONSTD_SOURCE will get pre-POSIX APIs plus Apple
+//		API extensions in scope.
+//
+//		This is generally equivalent to the Tiger release compilation
+//		environment, except that it cannot be applied to 64 bit code;
+//		its use is discouraged.
+//
+//		We expect this environment to be deprecated in the future.
+//
+// STRICT	Defining _POSIX_C_SOURCE or _XOPEN_SOURCE restricts the
+//		available APIs to exactly the set of APIs defined by the
+//		corresponding standard, based on the value defined.
+//
+//		A correct, portable definition for _POSIX_C_SOURCE is 200112L.
+//		A correct, portable definition for _XOPEN_SOURCE is 600L.
+//
+//		Apple API extensions are not visible in this environment,
+//		which can cause Apple specific code to fail to compile,
+//		or behave incorrectly if prototypes are not in scope or
+//		warnings about missing prototypes are not enabled or ignored.
+//
+// In any compilation environment, for correct symbol resolution to occur,
+// function prototypes must be in scope.  It is recommended that all Apple
+// tools users add either the "-Wall" or "-Wimplicit-function-declaration"
+// compiler flags to their projects to be warned when a function is being
+// used without a prototype in scope.
+
+// These settings are particular to each product.
+// Platform: MacOSX
+// #undef __DARWIN_ONLY_UNIX_CONFORMANCE (automatically set for 64-bit)
+
+// The __DARWIN_ALIAS macros are used to do symbol renaming; they allow
+// legacy code to use the old symbol, thus maintaining binary compatibility
+// while new code can use a standards compliant version of the same function.
+//
+// __DARWIN_ALIAS is used by itself if the function signature has not
+// changed, it is used along with a #ifdef check for __DARWIN_UNIX03
+// if the signature has changed.  Because the __LP64__ environment
+// only supports UNIX03 semantics it causes __DARWIN_UNIX03 to be
+// defined, but causes __DARWIN_ALIAS to do no symbol mangling.
+//
+// As a special case, when XCode is used to target a specific version of the
+// OS, the manifest constant __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__
+// will be defined by the compiler, with the digits representing major version
+// time 100 + minor version times 10 (e.g. 10.5 := 1050).  If we are targeting
+// pre-10.5, and it is the default compilation environment, revert the
+// compilation environment to pre-__DARWIN_UNIX03.
+
+// symbol suffixes used for symbol versioning
+
+// symbol versioning macros
+
+// symbol release macros
+// Copyright (c) 2010 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+
+// POSIX.1 requires that the macros we test be defined before any standard
+// header file is included.  This permits us to convert values for feature
+// testing, as necessary, using only _POSIX_C_SOURCE.
+//
+// Here's a quick run-down of the versions:
+//  defined(_POSIX_SOURCE)		1003.1-1988
+//  _POSIX_C_SOURCE == 1L		1003.1-1990
+//  _POSIX_C_SOURCE == 2L		1003.2-1992 C Language Binding Option
+//  _POSIX_C_SOURCE == 199309L		1003.1b-1993
+//  _POSIX_C_SOURCE == 199506L		1003.1c-1995, 1003.1i-1995,
+//					and the omnibus ISO/IEC 9945-1: 1996
+//  _POSIX_C_SOURCE == 200112L		1003.1-2001
+//  _POSIX_C_SOURCE == 200809L		1003.1-2008
+//
+// In addition, the X/Open Portability Guide, which is now the Single UNIX
+// Specification, defines a feature-test macro which indicates the version of
+// that specification, and which subsumes _POSIX_C_SOURCE.
+
+// Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1L.
+
+// Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2L.
+
+// Deal with various X/Open Portability Guides and Single UNIX Spec.
+
+// Deal with all versions of POSIX.  The ordering relative to the tests above is
+// important.
+
+// POSIX C deprecation macros
+// Copyright (c) 2010 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+
+// Set a single macro which will always be defined and can be used to determine
+// the appropriate namespace.  For POSIX, these values will correspond to
+// _POSIX_C_SOURCE value.  Currently there are two additional levels corresponding
+// to ANSI (_ANSI_SOURCE) and Darwin extensions (_DARWIN_C_SOURCE)
+
+// If the developer has neither requested a strict language mode nor a version
+// of POSIX, turn on functionality provided by __STDC_WANT_LIB_EXT1__ as part
+// of __DARWIN_C_FULL.
+
+// long long is not supported in c89 (__STRICT_ANSI__), but g++ -ansi and
+// c99 still want long longs.  While not perfect, we allow long longs for
+// g++.
+
+// ****************************************
+//
+//  Public darwin-specific feature macros
+//
+
+// _DARWIN_FEATURE_64_BIT_INODE indicates that the ino_t type is 64-bit, and
+// structures modified for 64-bit inodes (like struct stat) will be used.
+
+// _DARWIN_FEATURE_64_ONLY_BIT_INODE indicates that the ino_t type may only
+// be 64-bit; there is no support for 32-bit ino_t when this macro is defined
+// (and non-zero).  There is no struct stat64 either, as the regular
+// struct stat will already be the 64-bit version.
+
+// _DARWIN_FEATURE_ONLY_VERS_1050 indicates that only those APIs updated
+// in 10.5 exists; no pre-10.5 variants are available.
+
+// _DARWIN_FEATURE_ONLY_UNIX_CONFORMANCE indicates only UNIX conforming API
+// are available (the legacy BSD APIs are not available)
+
+// _DARWIN_FEATURE_UNIX_CONFORMANCE indicates whether UNIX conformance is on,
+// and specifies the conformance level (3 is SUSv3)
+
+// This macro casts away the qualifier from the variable
+//
+// Note: use at your own risk, removing qualifiers can result in
+// catastrophic run-time failures.
+
+// __XNU_PRIVATE_EXTERN is a linkage decoration indicating that a symbol can be
+// used from other compilation units, but not other libraries or executables.
+
+// Architecture validation for current SDK
+
+// Similar to OS_ENUM/OS_CLOSED_ENUM/OS_OPTIONS/OS_CLOSED_OPTIONS
+//
+// This provides more advanced type checking on compilers supporting
+// the proper extensions, even in C.
+
+// Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+// Copyright (c) 1997 Apple Computer, Inc. All Rights Reserved
+// Copyright (c) 1988, 1989, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. All advertising materials mentioning features or use of this software
+//    must display the following acknowledgement:
+//      This product includes software developed by the University of
+//      California, Berkeley and its contributors.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)termios.h	8.3 (Berkeley) 3/28/94
+
+// Copyright (c) 2000-2018 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+// Copyright 1995 NeXT Computer, Inc. All rights reserved.
+// Copyright (c) 1991, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// This code is derived from software contributed to Berkeley by
+// Berkeley Software Design, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. All advertising materials mentioning features or use of this software
+//    must display the following acknowledgement:
+//	This product includes software developed by the University of
+//	California, Berkeley and its contributors.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)cdefs.h	8.8 (Berkeley) 1/9/95
+
+// Special Control Characters
+//
+// Index into c_cc[] character array.
+//
+//	Name	     Subscript	Enabled by
+//			7	   spare 1
+//			19	   spare 2
+
+// Copyright (c) 2003-2012 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+
+// Input flags - software input processing
+
+// Output flags - software output processing
+// The following block of features is unimplemented.  Use of these flags in
+// programs will currently result in unexpected behaviour.
+//
+// - Begin unimplemented features
+// These manifest constants have the same names as those in the header
+// <sys/ioctl_compat.h>, so you are not permitted to have both definitions
+// in scope simultaneously in the same compilation unit.  Nevertheless,
+// they are required to be in scope when _POSIX_C_SOURCE is requested;
+// this means that including the <sys/ioctl_compat.h> header before this
+// one when _POSIX_C_SOURCE is in scope will result in redefintions.  We
+// attempt to maintain these as the same values so as to avoid this being
+// an outright error in most compilers.
+// not in sys/ioctl_compat.h, use OXTABS value
+// + End unimplemented features
+
+// Control flags - hardware control of terminal
+
+// "Local" flags - dumping ground for other state
+//
+// Warning: some flags in this structure begin with
+// the letter "I" and look like they belong in the
+// input flag.
+
+type Tcflag_t = uint64 /* termios.h:263:25 */
+type Cc_t = uint8      /* termios.h:264:25 */
+type Speed_t = uint64  /* termios.h:265:25 */
+
+type Termios = struct {
+	Fc_iflag     Tcflag_t
+	Fc_oflag     Tcflag_t
+	Fc_cflag     Tcflag_t
+	Fc_lflag     Tcflag_t
+	Fc_cc        [20]Cc_t
+	F__ccgo_pad1 [4]byte
+	Fc_ispeed    Speed_t
+	Fc_ospeed    Speed_t
+} /* termios.h:267:1 */
+
+// Include tty ioctl's that aren't just for backwards compatibility
+// with the old tty driver.  These ioctl definitions were previously
+// in <sys/ioctl.h>.
+// Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+// Copyright (c) 1997 Apple Computer, Inc. All Rights Reserved
+// -
+// Copyright (c) 1982, 1986, 1990, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. All advertising materials mentioning features or use of this software
+//    must display the following acknowledgement:
+//      This product includes software developed by the University of
+//      California, Berkeley and its contributors.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttycom.h	8.1 (Berkeley) 3/28/94
+
+// Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+// Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved
+// -
+// Copyright (c) 1982, 1986, 1990, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. All advertising materials mentioning features or use of this software
+//    must display the following acknowledgement:
+//	This product includes software developed by the University of
+//	California, Berkeley and its contributors.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ioccom.h	8.2 (Berkeley) 3/28/94
+
+// Copyright (c) 2003-2007 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+
+// Copyright (c) 2000-2018 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+// Copyright 1995 NeXT Computer, Inc. All rights reserved.
+// Copyright (c) 1991, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// This code is derived from software contributed to Berkeley by
+// Berkeley Software Design, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. All advertising materials mentioning features or use of this software
+//    must display the following acknowledgement:
+//	This product includes software developed by the University of
+//	California, Berkeley and its contributors.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)cdefs.h	8.8 (Berkeley) 1/9/95
+
+// Copyright (c) 2003-2007 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+
+// Copyright (c) 2000-2003 Apple Computer, Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+
+// This header file contains integer types.  It's intended to also contain
+// flotaing point and other arithmetic types, as needed, later.
+
+type X__int8_t = int8     /* _types.h:37:33 */
+type X__uint8_t = uint8   /* _types.h:41:33 */
+type X__int16_t = int16   /* _types.h:42:33 */
+type X__uint16_t = uint16 /* _types.h:43:33 */
+type X__int32_t = int32   /* _types.h:44:33 */
+type X__uint32_t = uint32 /* _types.h:45:33 */
+type X__int64_t = int64   /* _types.h:46:33 */
+type X__uint64_t = uint64 /* _types.h:47:33 */
+
+type X__darwin_intptr_t = int64   /* _types.h:49:33 */
+type X__darwin_natural_t = uint32 /* _types.h:50:33 */
+
+// The rune type below is declared to be an ``int'' instead of the more natural
+// ``unsigned long'' or ``long''.  Two things are happening here.  It is not
+// unsigned so that EOF (-1) can be naturally assigned to it and used.  Also,
+// it looks like 10646 will be a 31 bit standard.  This means that if your
+// ints cannot hold 32 bits, you will be in trouble.  The reason an int was
+// chosen over a long is that the is*() and to*() routines take ints (says
+// ANSI C), but they use __darwin_ct_rune_t instead of int.  By changing it
+// here, you lose a bit of ANSI conformance, but your programs will still
+// work.
+//
+// NOTE: rune_t is not covered by ANSI nor other standards, and should not
+// be instantiated outside of lib/libc/locale.  Use wchar_t.  wchar_t and
+// rune_t must be the same type.  Also wint_t must be no narrower than
+// wchar_t, and should also be able to hold all members of the largest
+// character set plus one extra value (WEOF). wint_t must be at least 16 bits.
+
+type X__darwin_ct_rune_t = int32 /* _types.h:70:33 */ // ct_rune_t
+
+// mbstate_t is an opaque object to keep conversion state, during multibyte
+// stream conversions.  The content must not be referenced by user programs.
+type X__mbstate_t = struct {
+	F__ccgo_pad1 [0]uint64
+	F__mbstate8  [128]int8
+} /* _types.h:79:3 */
+
+type X__darwin_mbstate_t = X__mbstate_t /* _types.h:81:33 */ // mbstate_t
+
+type X__darwin_ptrdiff_t = int64 /* _types.h:84:33 */ // ptr1 - ptr2
+
+type X__darwin_size_t = uint64 /* _types.h:92:33 */ // sizeof()
+
+type X__darwin_va_list = X__builtin_va_list /* _types.h:98:33 */ // va_list
+
+type X__darwin_wchar_t = int32 /* _types.h:104:33 */ // wchar_t
+
+type X__darwin_rune_t = X__darwin_wchar_t /* _types.h:109:33 */ // rune_t
+
+type X__darwin_wint_t = int32 /* _types.h:112:33 */ // wint_t
+
+type X__darwin_clock_t = uint64        /* _types.h:117:33 */ // clock()
+type X__darwin_socklen_t = X__uint32_t /* _types.h:118:33 */ // socklen_t (duh)
+type X__darwin_ssize_t = int64         /* _types.h:119:33 */ // byte count or error
+type X__darwin_time_t = int64          /* _types.h:120:33 */ // time()
+
+// Type definitions; takes common type definitions that must be used
+// in multiple header files due to [XSI], removes them from the system
+// space, and puts them in the implementation space.
+
+type X__darwin_blkcnt_t = X__int64_t                    /* _types.h:55:25 */ // total blocks
+type X__darwin_blksize_t = X__int32_t                   /* _types.h:56:25 */ // preferred block size
+type X__darwin_dev_t = X__int32_t                       /* _types.h:57:25 */ // dev_t
+type X__darwin_fsblkcnt_t = uint32                      /* _types.h:58:25 */ // Used by statvfs and fstatvfs
+type X__darwin_fsfilcnt_t = uint32                      /* _types.h:59:25 */ // Used by statvfs and fstatvfs
+type X__darwin_gid_t = X__uint32_t                      /* _types.h:60:25 */ // [???] process and group IDs
+type X__darwin_id_t = X__uint32_t                       /* _types.h:61:25 */ // [XSI] pid_t, uid_t, or gid_t
+type X__darwin_ino64_t = X__uint64_t                    /* _types.h:62:25 */ // [???] Used for 64 bit inodes
+type X__darwin_ino_t = X__darwin_ino64_t                /* _types.h:64:26 */ // [???] Used for inodes
+type X__darwin_mach_port_name_t = X__darwin_natural_t   /* _types.h:68:28 */ // Used by mach
+type X__darwin_mach_port_t = X__darwin_mach_port_name_t /* _types.h:69:35 */ // Used by mach
+type X__darwin_mode_t = X__uint16_t                     /* _types.h:70:25 */ // [???] Some file attributes
+type X__darwin_off_t = X__int64_t                       /* _types.h:71:25 */ // [???] Used for file sizes
+type X__darwin_pid_t = X__int32_t                       /* _types.h:72:25 */ // [???] process and group IDs
+type X__darwin_sigset_t = X__uint32_t                   /* _types.h:73:25 */ // [???] signal set
+type X__darwin_suseconds_t = X__int32_t                 /* _types.h:74:25 */ // [???] microseconds
+type X__darwin_uid_t = X__uint32_t                      /* _types.h:75:25 */ // [???] user IDs
+type X__darwin_useconds_t = X__uint32_t                 /* _types.h:76:25 */ // [???] microseconds
+type X__darwin_uuid_t = [16]uint8                       /* _types.h:77:25 */
+type X__darwin_uuid_string_t = [37]int8                 /* _types.h:78:17 */
+
+// Copyright (c) 2003-2013 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+
+// Copyright (c) 2000-2018 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+// Copyright 1995 NeXT Computer, Inc. All rights reserved.
+// Copyright (c) 1991, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// This code is derived from software contributed to Berkeley by
+// Berkeley Software Design, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. All advertising materials mentioning features or use of this software
+//    must display the following acknowledgement:
+//	This product includes software developed by the University of
+//	California, Berkeley and its contributors.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)cdefs.h	8.8 (Berkeley) 1/9/95
+
+// pthread opaque structures
+
+type X__darwin_pthread_handler_rec = struct {
+	F__routine uintptr
+	F__arg     uintptr
+	F__next    uintptr
+} /* _pthread_types.h:57:1 */
+
+type X_opaque_pthread_attr_t = struct {
+	F__sig    int64
+	F__opaque [56]int8
+} /* _pthread_types.h:63:1 */
+
+type X_opaque_pthread_cond_t = struct {
+	F__sig    int64
+	F__opaque [40]int8
+} /* _pthread_types.h:68:1 */
+
+type X_opaque_pthread_condattr_t = struct {
+	F__sig    int64
+	F__opaque [8]int8
+} /* _pthread_types.h:73:1 */
+
+type X_opaque_pthread_mutex_t = struct {
+	F__sig    int64
+	F__opaque [56]int8
+} /* _pthread_types.h:78:1 */
+
+type X_opaque_pthread_mutexattr_t = struct {
+	F__sig    int64
+	F__opaque [8]int8
+} /* _pthread_types.h:83:1 */
+
+type X_opaque_pthread_once_t = struct {
+	F__sig    int64
+	F__opaque [8]int8
+} /* _pthread_types.h:88:1 */
+
+type X_opaque_pthread_rwlock_t = struct {
+	F__sig    int64
+	F__opaque [192]int8
+} /* _pthread_types.h:93:1 */
+
+type X_opaque_pthread_rwlockattr_t = struct {
+	F__sig    int64
+	F__opaque [16]int8
+} /* _pthread_types.h:98:1 */
+
+type X_opaque_pthread_t = struct {
+	F__sig           int64
+	F__cleanup_stack uintptr
+	F__opaque        [8176]int8
+} /* _pthread_types.h:103:1 */
+
+type X__darwin_pthread_attr_t = X_opaque_pthread_attr_t             /* _pthread_types.h:109:39 */
+type X__darwin_pthread_cond_t = X_opaque_pthread_cond_t             /* _pthread_types.h:110:39 */
+type X__darwin_pthread_condattr_t = X_opaque_pthread_condattr_t     /* _pthread_types.h:111:43 */
+type X__darwin_pthread_key_t = uint64                               /* _pthread_types.h:112:23 */
+type X__darwin_pthread_mutex_t = X_opaque_pthread_mutex_t           /* _pthread_types.h:113:40 */
+type X__darwin_pthread_mutexattr_t = X_opaque_pthread_mutexattr_t   /* _pthread_types.h:114:44 */
+type X__darwin_pthread_once_t = X_opaque_pthread_once_t             /* _pthread_types.h:115:39 */
+type X__darwin_pthread_rwlock_t = X_opaque_pthread_rwlock_t         /* _pthread_types.h:116:41 */
+type X__darwin_pthread_rwlockattr_t = X_opaque_pthread_rwlockattr_t /* _pthread_types.h:117:45 */
+type X__darwin_pthread_t = uintptr                                  /* _pthread_types.h:118:34 */
+
+// Ioctl's have the command encoded in the lower word, and the size of
+// any in or out parameters in the upper word.  The high 3 bits of the
+// upper word are used to encode the in/out status of the parameter.
+
+// no parameters
+// copy parameters out
+// copy parameters in
+// copy paramters in and out
+// mask for IN/OUT/VOID
+
+// this should be _IORW, but stdio got there first
+
+// Tty ioctl's except for those supported only for backwards compatibility
+// with the old tty driver.
+
+// Window/terminal size structure.  This information is stored by the kernel
+// in order to provide a consistent interface, but is not used by the kernel.
+type Winsize = struct {
+	Fws_row    uint16
+	Fws_col    uint16
+	Fws_xpixel uint16
+	Fws_ypixel uint16
+} /* ttycom.h:82:1 */
+
+// 8-10 compat
+// 15 unused
+// 17-18 compat
+// 127-124 compat
+// 117-116 compat
+
+// END OF PROTECTED INCLUDE.
+
+// Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+// Copyright (c) 1997 Apple Computer, Inc. All Rights Reserved
+// -
+// Copyright (c) 1982, 1986, 1993
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. All advertising materials mentioning features or use of this software
+//    must display the following acknowledgement:
+//      This product includes software developed by the University of
+//      California, Berkeley and its contributors.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttydefaults.h	8.4 (Berkeley) 1/21/94
+
+// System wide defaults for terminal state.
+
+// Defaults on "first" open.
+
+// Control Character Defaults
+// compat
+
+// PROTECTED INCLUSION ENDS HERE
+
+// #define TTYDEFCHARS to include an array of default control characters.
+// Copyright (c) 2004, 2008, 2009 Apple Inc. All rights reserved.
+//
+// @APPLE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this
+// file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_LICENSE_HEADER_END@
+
+// Copyright (c) 2003-2007 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+
+// Copyright (c) 2003-2007 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+
+type X__darwin_nl_item = int32        /* _types.h:40:14 */
+type X__darwin_wctrans_t = int32      /* _types.h:41:14 */
+type X__darwin_wctype_t = X__uint32_t /* _types.h:43:20 */
+
+// Copyright (c) 2003-2012 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+// Copyright (c) 2003-2007 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+
+type Pid_t = X__darwin_pid_t /* _pid_t.h:31:31 */
+
+var _ int8 /* gen.c:2:13: */
diff --git a/vendor/modernc.org/libc/termios/termios_darwin_arm64.go b/vendor/modernc.org/libc/termios/termios_darwin_arm64.go
new file mode 100644
index 0000000..9235fb4
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/termios_darwin_arm64.go
@@ -0,0 +1,1570 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_darwin_arm64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+import (
+	"math"
+	"reflect"
+	"sync/atomic"
+	"unsafe"
+)
+
+var _ = math.Pi
+var _ reflect.Kind
+var _ atomic.Value
+var _ unsafe.Pointer
+
+const (
+	ALTWERASE                              = 0x00000200 // termios.h:249:1:
+	B0                                     = 0          // termios.h:291:1:
+	B110                                   = 110        // termios.h:294:1:
+	B115200                                = 115200     // termios.h:313:1:
+	B1200                                  = 1200       // termios.h:300:1:
+	B134                                   = 134        // termios.h:295:1:
+	B14400                                 = 14400      // termios.h:309:1:
+	B150                                   = 150        // termios.h:296:1:
+	B1800                                  = 1800       // termios.h:301:1:
+	B19200                                 = 19200      // termios.h:305:1:
+	B200                                   = 200        // termios.h:297:1:
+	B230400                                = 230400     // termios.h:314:1:
+	B2400                                  = 2400       // termios.h:302:1:
+	B28800                                 = 28800      // termios.h:310:1:
+	B300                                   = 300        // termios.h:298:1:
+	B38400                                 = 38400      // termios.h:306:1:
+	B4800                                  = 4800       // termios.h:303:1:
+	B50                                    = 50         // termios.h:292:1:
+	B57600                                 = 57600      // termios.h:311:1:
+	B600                                   = 600        // termios.h:299:1:
+	B7200                                  = 7200       // termios.h:308:1:
+	B75                                    = 75         // termios.h:293:1:
+	B76800                                 = 76800      // termios.h:312:1:
+	B9600                                  = 9600       // termios.h:304:1:
+	BRKINT                                 = 0x00000002 // termios.h:120:1:
+	BS0                                    = 0x00000000 // termios.h:190:1:
+	BS1                                    = 0x00008000 // termios.h:191:1:
+	BSDLY                                  = 0x00008000 // termios.h:159:1:
+	CBRK                                   = 255        // ttydefaults.h:107:1:
+	CCAR_OFLOW                             = 0x00100000 // termios.h:222:1:
+	CCTS_OFLOW                             = 0x00010000 // termios.h:217:1:
+	CDISCARD                               = 15         // ttydefaults.h:102:1:
+	CDSR_OFLOW                             = 0x00080000 // termios.h:221:1:
+	CDSUSP                                 = 25         // ttydefaults.h:98:1:
+	CDTR_IFLOW                             = 0x00040000 // termios.h:220:1:
+	CEOF                                   = 4          // ttydefaults.h:88:1:
+	CEOL                                   = 0xff       // ttydefaults.h:89:1:
+	CEOT                                   = 4          // ttydefaults.h:105:1:
+	CERASE                                 = 0177       // ttydefaults.h:90:1:
+	CFLUSH                                 = 15         // ttydefaults.h:109:1:
+	CIGNORE                                = 0x00000001 // termios.h:203:1:
+	CINTR                                  = 3          // ttydefaults.h:91:1:
+	CKILL                                  = 21         // ttydefaults.h:93:1:
+	CLNEXT                                 = 22         // ttydefaults.h:101:1:
+	CLOCAL                                 = 0x00008000 // termios.h:215:1:
+	CMIN                                   = 1          // ttydefaults.h:94:1:
+	CQUIT                                  = 034        // ttydefaults.h:95:1:
+	CR0                                    = 0x00000000 // termios.h:184:1:
+	CR1                                    = 0x00001000 // termios.h:185:1:
+	CR2                                    = 0x00002000 // termios.h:186:1:
+	CR3                                    = 0x00003000 // termios.h:187:1:
+	CRDLY                                  = 0x00003000 // termios.h:157:1:
+	CREAD                                  = 0x00000800 // termios.h:211:1:
+	CREPRINT                               = 18         // ttydefaults.h:104:1:
+	CRPRNT                                 = 18         // ttydefaults.h:108:1:
+	CRTSCTS                                = 196608     // termios.h:218:1:
+	CRTS_IFLOW                             = 0x00020000 // termios.h:219:1:
+	CS5                                    = 0x00000000 // termios.h:206:1:
+	CS6                                    = 0x00000100 // termios.h:207:1:
+	CS7                                    = 0x00000200 // termios.h:208:1:
+	CS8                                    = 0x00000300 // termios.h:209:1:
+	CSIZE                                  = 0x00000300 // termios.h:205:1:
+	CSTART                                 = 17         // ttydefaults.h:99:1:
+	CSTATUS                                = 20         // ttydefaults.h:92:1:
+	CSTOP                                  = 19         // ttydefaults.h:100:1:
+	CSTOPB                                 = 0x00000400 // termios.h:210:1:
+	CSUSP                                  = 26         // ttydefaults.h:96:1:
+	CTIME                                  = 0          // ttydefaults.h:97:1:
+	CWERASE                                = 23         // ttydefaults.h:103:1:
+	ECHO                                   = 0x00000008 // termios.h:240:1:
+	ECHOCTL                                = 0x00000040 // termios.h:244:1:
+	ECHOE                                  = 0x00000002 // termios.h:238:1:
+	ECHOK                                  = 0x00000004 // termios.h:239:1:
+	ECHOKE                                 = 0x00000001 // termios.h:236:1:
+	ECHONL                                 = 0x00000010 // termios.h:241:1:
+	ECHOPRT                                = 0x00000020 // termios.h:243:1:
+	EXTA                                   = 19200      // termios.h:315:1:
+	EXTB                                   = 38400      // termios.h:316:1:
+	EXTPROC                                = 0x00000800 // termios.h:253:1:
+	FF0                                    = 0x00000000 // termios.h:188:1:
+	FF1                                    = 0x00004000 // termios.h:189:1:
+	FFDLY                                  = 0x00004000 // termios.h:158:1:
+	FLUSHO                                 = 0x00800000 // termios.h:257:1:
+	HUPCL                                  = 0x00004000 // termios.h:214:1:
+	ICANON                                 = 0x00000100 // termios.h:247:1:
+	ICRNL                                  = 0x00000100 // termios.h:127:1:
+	IEXTEN                                 = 0x00000400 // termios.h:251:1:
+	IGNBRK                                 = 0x00000001 // termios.h:119:1:
+	IGNCR                                  = 0x00000080 // termios.h:126:1:
+	IGNPAR                                 = 0x00000004 // termios.h:121:1:
+	IMAXBEL                                = 0x00002000 // termios.h:132:1:
+	INLCR                                  = 0x00000040 // termios.h:125:1:
+	INPCK                                  = 0x00000010 // termios.h:123:1:
+	IOCPARM_MASK                           = 0x1fff     // ioccom.h:74:1:
+	IOCPARM_MAX                            = 8192       // ioccom.h:79:1:
+	ISIG                                   = 0x00000080 // termios.h:246:1:
+	ISTRIP                                 = 0x00000020 // termios.h:124:1:
+	IUTF8                                  = 0x00004000 // termios.h:133:1:
+	IXANY                                  = 0x00000800 // termios.h:130:1:
+	IXOFF                                  = 0x00000400 // termios.h:129:1:
+	IXON                                   = 0x00000200 // termios.h:128:1:
+	MDMBUF                                 = 0x00100000 // termios.h:223:1:
+	NCCS                                   = 20         // termios.h:108:1:
+	NL0                                    = 0x00000000 // termios.h:173:1:
+	NL1                                    = 0x00000100 // termios.h:174:1:
+	NL2                                    = 0x00000200 // termios.h:176:1:
+	NL3                                    = 0x00000300 // termios.h:177:1:
+	NLDLY                                  = 0x00000300 // termios.h:155:1:
+	NOFLSH                                 = 0x80000000 // termios.h:261:1:
+	NOKERNINFO                             = 0x02000000 // termios.h:258:1:
+	OCRNL                                  = 0x00000010 // termios.h:151:1:
+	OFDEL                                  = 0x00020000 // termios.h:161:1:
+	OFILL                                  = 0x00000080 // termios.h:154:1:
+	ONLCR                                  = 0x00000002 // termios.h:140:1:
+	ONLRET                                 = 0x00000040 // termios.h:153:1:
+	ONOCR                                  = 0x00000020 // termios.h:152:1:
+	ONOEOT                                 = 0x00000008 // termios.h:143:1:
+	OPOST                                  = 0x00000001 // termios.h:139:1:
+	OXTABS                                 = 0x00000004 // termios.h:142:1:
+	PARENB                                 = 0x00001000 // termios.h:212:1:
+	PARMRK                                 = 0x00000008 // termios.h:122:1:
+	PARODD                                 = 0x00002000 // termios.h:213:1:
+	PENDIN                                 = 0x20000000 // termios.h:259:1:
+	PPPDISC                                = 5          // ttycom.h:171:1:
+	SLIPDISC                               = 4          // ttycom.h:170:1:
+	TAB0                                   = 0x00000000 // termios.h:179:1:
+	TAB1                                   = 0x00000400 // termios.h:180:1:
+	TAB2                                   = 0x00000800 // termios.h:181:1:
+	TAB3                                   = 0x00000004 // termios.h:183:1:
+	TABDLY                                 = 0x00000c04 // termios.h:156:1:
+	TABLDISC                               = 3          // ttycom.h:169:1:
+	TCIFLUSH                               = 1          // termios.h:320:1:
+	TCIOFF                                 = 3          // termios.h:325:1:
+	TCIOFLUSH                              = 3          // termios.h:322:1:
+	TCION                                  = 4          // termios.h:326:1:
+	TCOFLUSH                               = 2          // termios.h:321:1:
+	TCOOFF                                 = 1          // termios.h:323:1:
+	TCOON                                  = 2          // termios.h:324:1:
+	TCSADRAIN                              = 1          // termios.h:282:1:
+	TCSAFLUSH                              = 2          // termios.h:283:1:
+	TCSANOW                                = 0          // termios.h:281:1:
+	TCSASOFT                               = 0x10       // termios.h:285:1:
+	TIOCM_CAR                              = 0100       // ttycom.h:97:1:
+	TIOCM_CD                               = 64         // ttycom.h:98:1:
+	TIOCM_CTS                              = 0040       // ttycom.h:96:1:
+	TIOCM_DSR                              = 0400       // ttycom.h:101:1:
+	TIOCM_DTR                              = 0002       // ttycom.h:92:1:
+	TIOCM_LE                               = 0001       // ttycom.h:91:1:
+	TIOCM_RI                               = 128        // ttycom.h:100:1:
+	TIOCM_RNG                              = 0200       // ttycom.h:99:1:
+	TIOCM_RTS                              = 0004       // ttycom.h:93:1:
+	TIOCM_SR                               = 0020       // ttycom.h:95:1:
+	TIOCM_ST                               = 0010       // ttycom.h:94:1:
+	TIOCPKT_DATA                           = 0x00       // ttycom.h:128:1:
+	TIOCPKT_DOSTOP                         = 0x20       // ttycom.h:134:1:
+	TIOCPKT_FLUSHREAD                      = 0x01       // ttycom.h:129:1:
+	TIOCPKT_FLUSHWRITE                     = 0x02       // ttycom.h:130:1:
+	TIOCPKT_IOCTL                          = 0x40       // ttycom.h:135:1:
+	TIOCPKT_NOSTOP                         = 0x10       // ttycom.h:133:1:
+	TIOCPKT_START                          = 0x08       // ttycom.h:132:1:
+	TIOCPKT_STOP                           = 0x04       // ttycom.h:131:1:
+	TOSTOP                                 = 0x00400000 // termios.h:255:1:
+	TTYDEF_CFLAG                           = 19200      // ttydefaults.h:81:1:
+	TTYDEF_IFLAG                           = 11010      // ttydefaults.h:78:1:
+	TTYDEF_LFLAG                           = 1483       // ttydefaults.h:80:1:
+	TTYDEF_OFLAG                           = 3          // ttydefaults.h:79:1:
+	TTYDEF_SPEED                           = 9600       // ttydefaults.h:82:1:
+	TTYDISC                                = 0          // ttycom.h:168:1:
+	VDISCARD                               = 15         // termios.h:100:1:
+	VDSUSP                                 = 11         // termios.h:94:1:
+	VEOF                                   = 0          // termios.h:76:1:
+	VEOL                                   = 1          // termios.h:77:1:
+	VEOL2                                  = 2          // termios.h:79:1:
+	VERASE                                 = 3          // termios.h:81:1:
+	VINTR                                  = 8          // termios.h:90:1:
+	VKILL                                  = 5          // termios.h:85:1:
+	VLNEXT                                 = 14         // termios.h:99:1:
+	VMIN                                   = 16         // termios.h:102:1:
+	VQUIT                                  = 9          // termios.h:91:1:
+	VREPRINT                               = 6          // termios.h:87:1:
+	VSTART                                 = 12         // termios.h:96:1:
+	VSTATUS                                = 18         // termios.h:105:1:
+	VSTOP                                  = 13         // termios.h:97:1:
+	VSUSP                                  = 10         // termios.h:92:1:
+	VT0                                    = 0x00000000 // termios.h:192:1:
+	VT1                                    = 0x00010000 // termios.h:193:1:
+	VTDLY                                  = 0x00010000 // termios.h:160:1:
+	VTIME                                  = 17         // termios.h:103:1:
+	VWERASE                                = 4          // termios.h:83:1:
+	X_BSD_ARM__TYPES_H_                    = 0          // _types.h:5:1:
+	X_BSD_MACHINE__TYPES_H_                = 0          // _types.h:29:1:
+	X_CDEFS_H_                             = 0          // cdefs.h:68:1:
+	X_DARWIN_FEATURE_64_BIT_INODE          = 1          // cdefs.h:774:1:
+	X_DARWIN_FEATURE_ONLY_64_BIT_INODE     = 1          // cdefs.h:784:1:
+	X_DARWIN_FEATURE_ONLY_UNIX_CONFORMANCE = 1          // cdefs.h:800:1:
+	X_DARWIN_FEATURE_ONLY_VERS_1050        = 1          // cdefs.h:792:1:
+	X_DARWIN_FEATURE_UNIX_CONFORMANCE      = 3          // cdefs.h:808:1:
+	X_FILE_OFFSET_BITS                     = 64         // <builtin>:25:1:
+	X_FORTIFY_SOURCE                       = 2          // _types.h:65:1:
+	X_LP64                                 = 1          // <predefined>:1:1:
+	X_Nonnull                              = 0          // cdefs.h:268:1:
+	X_Null_unspecified                     = 0          // cdefs.h:271:1:
+	X_Nullable                             = 0          // cdefs.h:265:1:
+	X_PID_T                                = 0          // _pid_t.h:29:1:
+	X_SYS_IOCCOM_H_                        = 0          // ioccom.h:65:1:
+	X_SYS_TERMIOS_H_                       = 0          // termios.h:65:1:
+	X_SYS_TTYCOM_H_                        = 0          // ttycom.h:70:1:
+	X_SYS_TTYDEFAULTS_H_                   = 0          // ttydefaults.h:73:1:
+	X_SYS__PTHREAD_TYPES_H_                = 0          // _pthread_types.h:30:1:
+	X_SYS__TYPES_H_                        = 0          // _types.h:30:1:
+)
+
+type Ptrdiff_t = int64 /* <builtin>:3:26 */
+
+type Size_t = uint64 /* <builtin>:9:23 */
+
+type Wchar_t = int32 /* <builtin>:15:24 */
+
+type X__int128_t = struct {
+	Flo int64
+	Fhi int64
+} /* <builtin>:21:43 */ // must match modernc.org/mathutil.Int128
+type X__uint128_t = struct {
+	Flo uint64
+	Fhi uint64
+} /* <builtin>:22:44 */ // must match modernc.org/mathutil.Int128
+
+type X__builtin_va_list = uintptr /* <builtin>:46:14 */
+type X__float128 = float64        /* <builtin>:47:21 */
+
+var X__darwin_check_fd_set_overflow uintptr /* <builtin>:146:5: */
+
+// Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+//
+// @APPLE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this
+// file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_LICENSE_HEADER_END@
+
+// Copyright (c) 2000-2018 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+// Copyright 1995 NeXT Computer, Inc. All rights reserved.
+// Copyright (c) 1991, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// This code is derived from software contributed to Berkeley by
+// Berkeley Software Design, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. All advertising materials mentioning features or use of this software
+//    must display the following acknowledgement:
+//	This product includes software developed by the University of
+//	California, Berkeley and its contributors.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)cdefs.h	8.8 (Berkeley) 1/9/95
+
+// This SDK is designed to work with clang and specific versions of
+// gcc >= 4.0 with Apple's patch sets
+
+// Compatibility with compilers and environments that don't support compiler
+// feature checking function-like macros.
+
+// The __CONCAT macro is used to concatenate parts of symbol names, e.g.
+// with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
+// The __CONCAT macro is a bit tricky -- make sure you don't put spaces
+// in between its arguments.  __CONCAT can also concatenate double-quoted
+// strings produced by the __STRING macro, but this only works with ANSI C.
+
+// In non-ANSI C environments, new programs will want ANSI-only C keywords
+// deleted from the program and old programs will want them left alone.
+// When using a compiler other than gcc, programs using the ANSI C keywords
+// const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS.
+// When using "gcc -traditional", we assume that this is the intent; if
+// __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone.
+
+// __pure2 can be used for functions that are only a function of their scalar
+// arguments (meaning they can't dereference pointers).
+//
+// __stateful_pure can be used for functions that have no side effects,
+// but depend on the state of the memory.
+
+// __unused denotes variables and functions that may not be used, preventing
+// the compiler from warning about it if not used.
+
+// __used forces variables and functions to be included even if it appears
+// to the compiler that they are not used (and would thust be discarded).
+
+// __cold marks code used for debugging or that is rarely taken
+// and tells the compiler to optimize for size and outline code.
+
+// __exported denotes symbols that should be exported even when symbols
+// are hidden by default.
+// __exported_push/_exported_pop are pragmas used to delimit a range of
+//  symbols that should be exported even when symbols are hidden by default.
+
+// __deprecated causes the compiler to produce a warning when encountering
+// code using the deprecated functionality.
+// __deprecated_msg() does the same, and compilers that support it will print
+// a message along with the deprecation warning.
+// This may require turning on such warning with the -Wdeprecated flag.
+// __deprecated_enum_msg() should be used on enums, and compilers that support
+// it will print the deprecation warning.
+// __kpi_deprecated() specifically indicates deprecation of kernel programming
+// interfaces in Kernel.framework used by KEXTs.
+
+// __unavailable causes the compiler to error out when encountering
+// code using the tagged function
+
+// Delete pseudo-keywords wherever they are not available or needed.
+
+// We use `__restrict' as a way to define the `restrict' type qualifier
+// without disturbing older software that is unaware of C99 keywords.
+
+// Compatibility with compilers and environments that don't support the
+// nullability feature.
+
+// __disable_tail_calls causes the compiler to not perform tail call
+// optimization inside the marked function.
+
+// __not_tail_called causes the compiler to prevent tail call optimization
+// on statically bound calls to the function.  It has no effect on indirect
+// calls.  Virtual functions, objective-c methods, and functions marked as
+// "always_inline" cannot be marked as __not_tail_called.
+
+// __result_use_check warns callers of a function that not using the function
+// return value is a bug, i.e. dismissing malloc() return value results in a
+// memory leak.
+
+// __swift_unavailable causes the compiler to mark a symbol as specifically
+// unavailable in Swift, regardless of any other availability in C.
+
+// __abortlike is the attribute to put on functions like abort() that are
+// typically used to mark assertions. These optimize the codegen
+// for outlining while still maintaining debugability.
+
+// Declaring inline functions within headers is error-prone due to differences
+// across various versions of the C language and extensions.  __header_inline
+// can be used to declare inline functions within system headers.  In cases
+// where you want to force inlining instead of letting the compiler make
+// the decision, you can use __header_always_inline.
+//
+// Be aware that using inline for functions which compilers may also provide
+// builtins can behave differently under various compilers.  If you intend to
+// provide an inline version of such a function, you may want to use a macro
+// instead.
+//
+// The check for !__GNUC__ || __clang__ is because gcc doesn't correctly
+// support c99 inline in some cases:
+// http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55965
+
+// Compiler-dependent macros that bracket portions of code where the
+// "-Wunreachable-code" warning should be ignored. Please use sparingly.
+
+// Compiler-dependent macros to declare that functions take printf-like
+// or scanf-like arguments.  They are null except for versions of gcc
+// that are known to support the features properly.  Functions declared
+// with these attributes will cause compilation warnings if there is a
+// mismatch between the format string and subsequent function parameter
+// types.
+
+// Source compatibility only, ID string not emitted in object file
+
+// __alloc_size can be used to label function arguments that represent the
+// size of memory that the function allocates and returns. The one-argument
+// form labels a single argument that gives the allocation size (where the
+// arguments are numbered from 1):
+//
+// void	*malloc(size_t __size) __alloc_size(1);
+//
+// The two-argument form handles the case where the size is calculated as the
+// product of two arguments:
+//
+// void	*calloc(size_t __count, size_t __size) __alloc_size(1,2);
+
+// COMPILATION ENVIRONMENTS -- see compat(5) for additional detail
+//
+// DEFAULT	By default newly complied code will get POSIX APIs plus
+//		Apple API extensions in scope.
+//
+//		Most users will use this compilation environment to avoid
+//		behavioral differences between 32 and 64 bit code.
+//
+// LEGACY	Defining _NONSTD_SOURCE will get pre-POSIX APIs plus Apple
+//		API extensions in scope.
+//
+//		This is generally equivalent to the Tiger release compilation
+//		environment, except that it cannot be applied to 64 bit code;
+//		its use is discouraged.
+//
+//		We expect this environment to be deprecated in the future.
+//
+// STRICT	Defining _POSIX_C_SOURCE or _XOPEN_SOURCE restricts the
+//		available APIs to exactly the set of APIs defined by the
+//		corresponding standard, based on the value defined.
+//
+//		A correct, portable definition for _POSIX_C_SOURCE is 200112L.
+//		A correct, portable definition for _XOPEN_SOURCE is 600L.
+//
+//		Apple API extensions are not visible in this environment,
+//		which can cause Apple specific code to fail to compile,
+//		or behave incorrectly if prototypes are not in scope or
+//		warnings about missing prototypes are not enabled or ignored.
+//
+// In any compilation environment, for correct symbol resolution to occur,
+// function prototypes must be in scope.  It is recommended that all Apple
+// tools users add either the "-Wall" or "-Wimplicit-function-declaration"
+// compiler flags to their projects to be warned when a function is being
+// used without a prototype in scope.
+
+// These settings are particular to each product.
+// Platform: MacOSX
+
+// The __DARWIN_ALIAS macros are used to do symbol renaming; they allow
+// legacy code to use the old symbol, thus maintaining binary compatibility
+// while new code can use a standards compliant version of the same function.
+//
+// __DARWIN_ALIAS is used by itself if the function signature has not
+// changed, it is used along with a #ifdef check for __DARWIN_UNIX03
+// if the signature has changed.  Because the __LP64__ environment
+// only supports UNIX03 semantics it causes __DARWIN_UNIX03 to be
+// defined, but causes __DARWIN_ALIAS to do no symbol mangling.
+//
+// As a special case, when XCode is used to target a specific version of the
+// OS, the manifest constant __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__
+// will be defined by the compiler, with the digits representing major version
+// time 100 + minor version times 10 (e.g. 10.5 := 1050).  If we are targeting
+// pre-10.5, and it is the default compilation environment, revert the
+// compilation environment to pre-__DARWIN_UNIX03.
+
+// symbol suffixes used for symbol versioning
+
+// symbol versioning macros
+
+// symbol release macros
+// Copyright (c) 2010 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+
+// POSIX.1 requires that the macros we test be defined before any standard
+// header file is included.  This permits us to convert values for feature
+// testing, as necessary, using only _POSIX_C_SOURCE.
+//
+// Here's a quick run-down of the versions:
+//  defined(_POSIX_SOURCE)		1003.1-1988
+//  _POSIX_C_SOURCE == 1L		1003.1-1990
+//  _POSIX_C_SOURCE == 2L		1003.2-1992 C Language Binding Option
+//  _POSIX_C_SOURCE == 199309L		1003.1b-1993
+//  _POSIX_C_SOURCE == 199506L		1003.1c-1995, 1003.1i-1995,
+//					and the omnibus ISO/IEC 9945-1: 1996
+//  _POSIX_C_SOURCE == 200112L		1003.1-2001
+//  _POSIX_C_SOURCE == 200809L		1003.1-2008
+//
+// In addition, the X/Open Portability Guide, which is now the Single UNIX
+// Specification, defines a feature-test macro which indicates the version of
+// that specification, and which subsumes _POSIX_C_SOURCE.
+
+// Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1L.
+
+// Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2L.
+
+// Deal with various X/Open Portability Guides and Single UNIX Spec.
+
+// Deal with all versions of POSIX.  The ordering relative to the tests above is
+// important.
+
+// POSIX C deprecation macros
+// Copyright (c) 2010 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+
+// Set a single macro which will always be defined and can be used to determine
+// the appropriate namespace.  For POSIX, these values will correspond to
+// _POSIX_C_SOURCE value.  Currently there are two additional levels corresponding
+// to ANSI (_ANSI_SOURCE) and Darwin extensions (_DARWIN_C_SOURCE)
+
+// If the developer has neither requested a strict language mode nor a version
+// of POSIX, turn on functionality provided by __STDC_WANT_LIB_EXT1__ as part
+// of __DARWIN_C_FULL.
+
+// long long is not supported in c89 (__STRICT_ANSI__), but g++ -ansi and
+// c99 still want long longs.  While not perfect, we allow long longs for
+// g++.
+
+// ****************************************
+//
+//  Public darwin-specific feature macros
+//
+
+// _DARWIN_FEATURE_64_BIT_INODE indicates that the ino_t type is 64-bit, and
+// structures modified for 64-bit inodes (like struct stat) will be used.
+
+// _DARWIN_FEATURE_64_ONLY_BIT_INODE indicates that the ino_t type may only
+// be 64-bit; there is no support for 32-bit ino_t when this macro is defined
+// (and non-zero).  There is no struct stat64 either, as the regular
+// struct stat will already be the 64-bit version.
+
+// _DARWIN_FEATURE_ONLY_VERS_1050 indicates that only those APIs updated
+// in 10.5 exists; no pre-10.5 variants are available.
+
+// _DARWIN_FEATURE_ONLY_UNIX_CONFORMANCE indicates only UNIX conforming API
+// are available (the legacy BSD APIs are not available)
+
+// _DARWIN_FEATURE_UNIX_CONFORMANCE indicates whether UNIX conformance is on,
+// and specifies the conformance level (3 is SUSv3)
+
+// This macro casts away the qualifier from the variable
+//
+// Note: use at your own risk, removing qualifiers can result in
+// catastrophic run-time failures.
+
+// __XNU_PRIVATE_EXTERN is a linkage decoration indicating that a symbol can be
+// used from other compilation units, but not other libraries or executables.
+
+// We intentionally define to nothing pointer attributes which do not have an
+// impact on the ABI. __indexable and __bidi_indexable are not defined because
+// of the ABI incompatibility that makes the diagnostic preferable.
+
+// Similarly, we intentionally define to nothing the
+// __ptrcheck_abi_assume_single and __ptrcheck_abi_assume_unsafe_indexable
+// macros because they do not lead to an ABI incompatibility. However, we do not
+// define the indexable and unsafe_indexable ones because the diagnostic is
+// better than the silent ABI break.
+
+// __unsafe_forge intrinsics are defined as regular C casts.
+
+// decay operates normally; attribute is meaningless without pointer checks.
+
+// Architecture validation for current SDK
+
+// Similar to OS_ENUM/OS_CLOSED_ENUM/OS_OPTIONS/OS_CLOSED_OPTIONS
+//
+// This provides more advanced type checking on compilers supporting
+// the proper extensions, even in C.
+
+// Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+// Copyright (c) 1997 Apple Computer, Inc. All Rights Reserved
+// Copyright (c) 1988, 1989, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. All advertising materials mentioning features or use of this software
+//    must display the following acknowledgement:
+//      This product includes software developed by the University of
+//      California, Berkeley and its contributors.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)termios.h	8.3 (Berkeley) 3/28/94
+
+// Copyright (c) 2000-2018 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+// Copyright 1995 NeXT Computer, Inc. All rights reserved.
+// Copyright (c) 1991, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// This code is derived from software contributed to Berkeley by
+// Berkeley Software Design, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. All advertising materials mentioning features or use of this software
+//    must display the following acknowledgement:
+//	This product includes software developed by the University of
+//	California, Berkeley and its contributors.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)cdefs.h	8.8 (Berkeley) 1/9/95
+
+// Special Control Characters
+//
+// Index into c_cc[] character array.
+//
+//	Name	     Subscript	Enabled by
+//			7	   spare 1
+//			19	   spare 2
+
+// Copyright (c) 2003-2012 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+
+// Input flags - software input processing
+
+// Output flags - software output processing
+// The following block of features is unimplemented.  Use of these flags in
+// programs will currently result in unexpected behaviour.
+//
+// - Begin unimplemented features
+// These manifest constants have the same names as those in the header
+// <sys/ioctl_compat.h>, so you are not permitted to have both definitions
+// in scope simultaneously in the same compilation unit.  Nevertheless,
+// they are required to be in scope when _POSIX_C_SOURCE is requested;
+// this means that including the <sys/ioctl_compat.h> header before this
+// one when _POSIX_C_SOURCE is in scope will result in redefintions.  We
+// attempt to maintain these as the same values so as to avoid this being
+// an outright error in most compilers.
+// not in sys/ioctl_compat.h, use OXTABS value
+// + End unimplemented features
+
+// Control flags - hardware control of terminal
+
+// "Local" flags - dumping ground for other state
+//
+// Warning: some flags in this structure begin with
+// the letter "I" and look like they belong in the
+// input flag.
+
+type Tcflag_t = uint64 /* termios.h:263:25 */
+type Cc_t = uint8      /* termios.h:264:25 */
+type Speed_t = uint64  /* termios.h:265:25 */
+
+type Termios = struct {
+	Fc_iflag     Tcflag_t
+	Fc_oflag     Tcflag_t
+	Fc_cflag     Tcflag_t
+	Fc_lflag     Tcflag_t
+	Fc_cc        [20]Cc_t
+	F__ccgo_pad1 [4]byte
+	Fc_ispeed    Speed_t
+	Fc_ospeed    Speed_t
+} /* termios.h:267:1 */
+
+// Include tty ioctl's that aren't just for backwards compatibility
+// with the old tty driver.  These ioctl definitions were previously
+// in <sys/ioctl.h>.
+// Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+// Copyright (c) 1997 Apple Computer, Inc. All Rights Reserved
+// -
+// Copyright (c) 1982, 1986, 1990, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. All advertising materials mentioning features or use of this software
+//    must display the following acknowledgement:
+//      This product includes software developed by the University of
+//      California, Berkeley and its contributors.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttycom.h	8.1 (Berkeley) 3/28/94
+
+// Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+// Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved
+// -
+// Copyright (c) 1982, 1986, 1990, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. All advertising materials mentioning features or use of this software
+//    must display the following acknowledgement:
+//	This product includes software developed by the University of
+//	California, Berkeley and its contributors.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ioccom.h	8.2 (Berkeley) 3/28/94
+
+// Copyright (c) 2003-2007 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+
+// Copyright (c) 2000-2018 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+// Copyright 1995 NeXT Computer, Inc. All rights reserved.
+// Copyright (c) 1991, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// This code is derived from software contributed to Berkeley by
+// Berkeley Software Design, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. All advertising materials mentioning features or use of this software
+//    must display the following acknowledgement:
+//	This product includes software developed by the University of
+//	California, Berkeley and its contributors.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)cdefs.h	8.8 (Berkeley) 1/9/95
+
+// Copyright (c) 2003-2007 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+
+// Copyright (c) 2000-2007 Apple Inc. All rights reserved.
+
+// This header file contains integer types.  It's intended to also contain
+// flotaing point and other arithmetic types, as needed, later.
+
+type X__int8_t = int8     /* _types.h:15:33 */
+type X__uint8_t = uint8   /* _types.h:19:33 */
+type X__int16_t = int16   /* _types.h:20:33 */
+type X__uint16_t = uint16 /* _types.h:21:33 */
+type X__int32_t = int32   /* _types.h:22:33 */
+type X__uint32_t = uint32 /* _types.h:23:33 */
+type X__int64_t = int64   /* _types.h:24:33 */
+type X__uint64_t = uint64 /* _types.h:25:33 */
+
+type X__darwin_intptr_t = int64   /* _types.h:27:33 */
+type X__darwin_natural_t = uint32 /* _types.h:28:33 */
+
+// The rune type below is declared to be an ``int'' instead of the more natural
+// ``unsigned long'' or ``long''.  Two things are happening here.  It is not
+// unsigned so that EOF (-1) can be naturally assigned to it and used.  Also,
+// it looks like 10646 will be a 31 bit standard.  This means that if your
+// ints cannot hold 32 bits, you will be in trouble.  The reason an int was
+// chosen over a long is that the is*() and to*() routines take ints (says
+// ANSI C), but they use __darwin_ct_rune_t instead of int.  By changing it
+// here, you lose a bit of ANSI conformance, but your programs will still
+// work.
+//
+// NOTE: rune_t is not covered by ANSI nor other standards, and should not
+// be instantiated outside of lib/libc/locale.  Use wchar_t.  wchar_t and
+// rune_t must be the same type.  Also wint_t must be no narrower than
+// wchar_t, and should also be able to hold all members of the largest
+// character set plus one extra value (WEOF). wint_t must be at least 16 bits.
+
+type X__darwin_ct_rune_t = int32 /* _types.h:48:33 */ // ct_rune_t
+
+// mbstate_t is an opaque object to keep conversion state, during multibyte
+// stream conversions.  The content must not be referenced by user programs.
+type X__mbstate_t = struct {
+	F__ccgo_pad1 [0]uint64
+	F__mbstate8  [128]int8
+} /* _types.h:57:3 */
+
+type X__darwin_mbstate_t = X__mbstate_t /* _types.h:59:33 */ // mbstate_t
+
+type X__darwin_ptrdiff_t = int64 /* _types.h:62:33 */ // ptr1 - ptr2
+
+type X__darwin_size_t = uint64 /* _types.h:70:33 */ // sizeof()
+
+type X__darwin_va_list = X__builtin_va_list /* _types.h:76:33 */ // va_list
+
+type X__darwin_wchar_t = int32 /* _types.h:82:33 */ // wchar_t
+
+type X__darwin_rune_t = X__darwin_wchar_t /* _types.h:87:33 */ // rune_t
+
+type X__darwin_wint_t = int32 /* _types.h:90:33 */ // wint_t
+
+type X__darwin_clock_t = uint64        /* _types.h:95:33 */ // clock()
+type X__darwin_socklen_t = X__uint32_t /* _types.h:96:33 */ // socklen_t (duh)
+type X__darwin_ssize_t = int64         /* _types.h:97:33 */ // byte count or error
+type X__darwin_time_t = int64          /* _types.h:98:33 */ // time()
+
+// Type definitions; takes common type definitions that must be used
+// in multiple header files due to [XSI], removes them from the system
+// space, and puts them in the implementation space.
+
+type X__darwin_blkcnt_t = X__int64_t                    /* _types.h:55:25 */ // total blocks
+type X__darwin_blksize_t = X__int32_t                   /* _types.h:56:25 */ // preferred block size
+type X__darwin_dev_t = X__int32_t                       /* _types.h:57:25 */ // dev_t
+type X__darwin_fsblkcnt_t = uint32                      /* _types.h:58:25 */ // Used by statvfs and fstatvfs
+type X__darwin_fsfilcnt_t = uint32                      /* _types.h:59:25 */ // Used by statvfs and fstatvfs
+type X__darwin_gid_t = X__uint32_t                      /* _types.h:60:25 */ // [???] process and group IDs
+type X__darwin_id_t = X__uint32_t                       /* _types.h:61:25 */ // [XSI] pid_t, uid_t, or gid_t
+type X__darwin_ino64_t = X__uint64_t                    /* _types.h:62:25 */ // [???] Used for 64 bit inodes
+type X__darwin_ino_t = X__darwin_ino64_t                /* _types.h:64:26 */ // [???] Used for inodes
+type X__darwin_mach_port_name_t = X__darwin_natural_t   /* _types.h:68:28 */ // Used by mach
+type X__darwin_mach_port_t = X__darwin_mach_port_name_t /* _types.h:69:35 */ // Used by mach
+type X__darwin_mode_t = X__uint16_t                     /* _types.h:70:25 */ // [???] Some file attributes
+type X__darwin_off_t = X__int64_t                       /* _types.h:71:25 */ // [???] Used for file sizes
+type X__darwin_pid_t = X__int32_t                       /* _types.h:72:25 */ // [???] process and group IDs
+type X__darwin_sigset_t = X__uint32_t                   /* _types.h:73:25 */ // [???] signal set
+type X__darwin_suseconds_t = X__int32_t                 /* _types.h:74:25 */ // [???] microseconds
+type X__darwin_uid_t = X__uint32_t                      /* _types.h:75:25 */ // [???] user IDs
+type X__darwin_useconds_t = X__uint32_t                 /* _types.h:76:25 */ // [???] microseconds
+type X__darwin_uuid_t = [16]uint8                       /* _types.h:77:25 */
+type X__darwin_uuid_string_t = [37]int8                 /* _types.h:78:17 */
+
+// Copyright (c) 2003-2013 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+
+// Copyright (c) 2000-2018 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+// Copyright 1995 NeXT Computer, Inc. All rights reserved.
+// Copyright (c) 1991, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// This code is derived from software contributed to Berkeley by
+// Berkeley Software Design, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. All advertising materials mentioning features or use of this software
+//    must display the following acknowledgement:
+//	This product includes software developed by the University of
+//	California, Berkeley and its contributors.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)cdefs.h	8.8 (Berkeley) 1/9/95
+
+// pthread opaque structures
+
+type X__darwin_pthread_handler_rec = struct {
+	F__routine uintptr
+	F__arg     uintptr
+	F__next    uintptr
+} /* _pthread_types.h:57:1 */
+
+type X_opaque_pthread_attr_t = struct {
+	F__sig    int64
+	F__opaque [56]int8
+} /* _pthread_types.h:63:1 */
+
+type X_opaque_pthread_cond_t = struct {
+	F__sig    int64
+	F__opaque [40]int8
+} /* _pthread_types.h:68:1 */
+
+type X_opaque_pthread_condattr_t = struct {
+	F__sig    int64
+	F__opaque [8]int8
+} /* _pthread_types.h:73:1 */
+
+type X_opaque_pthread_mutex_t = struct {
+	F__sig    int64
+	F__opaque [56]int8
+} /* _pthread_types.h:78:1 */
+
+type X_opaque_pthread_mutexattr_t = struct {
+	F__sig    int64
+	F__opaque [8]int8
+} /* _pthread_types.h:83:1 */
+
+type X_opaque_pthread_once_t = struct {
+	F__sig    int64
+	F__opaque [8]int8
+} /* _pthread_types.h:88:1 */
+
+type X_opaque_pthread_rwlock_t = struct {
+	F__sig    int64
+	F__opaque [192]int8
+} /* _pthread_types.h:93:1 */
+
+type X_opaque_pthread_rwlockattr_t = struct {
+	F__sig    int64
+	F__opaque [16]int8
+} /* _pthread_types.h:98:1 */
+
+type X_opaque_pthread_t = struct {
+	F__sig           int64
+	F__cleanup_stack uintptr
+	F__opaque        [8176]int8
+} /* _pthread_types.h:103:1 */
+
+type X__darwin_pthread_attr_t = X_opaque_pthread_attr_t             /* _pthread_types.h:109:39 */
+type X__darwin_pthread_cond_t = X_opaque_pthread_cond_t             /* _pthread_types.h:110:39 */
+type X__darwin_pthread_condattr_t = X_opaque_pthread_condattr_t     /* _pthread_types.h:111:43 */
+type X__darwin_pthread_key_t = uint64                               /* _pthread_types.h:112:23 */
+type X__darwin_pthread_mutex_t = X_opaque_pthread_mutex_t           /* _pthread_types.h:113:40 */
+type X__darwin_pthread_mutexattr_t = X_opaque_pthread_mutexattr_t   /* _pthread_types.h:114:44 */
+type X__darwin_pthread_once_t = X_opaque_pthread_once_t             /* _pthread_types.h:115:39 */
+type X__darwin_pthread_rwlock_t = X_opaque_pthread_rwlock_t         /* _pthread_types.h:116:41 */
+type X__darwin_pthread_rwlockattr_t = X_opaque_pthread_rwlockattr_t /* _pthread_types.h:117:45 */
+type X__darwin_pthread_t = uintptr                                  /* _pthread_types.h:118:34 */
+
+// Ioctl's have the command encoded in the lower word, and the size of
+// any in or out parameters in the upper word.  The high 3 bits of the
+// upper word are used to encode the in/out status of the parameter.
+
+// no parameters
+// copy parameters out
+// copy parameters in
+// copy parameters in and out
+// mask for IN/OUT/VOID
+
+// this should be _IORW, but stdio got there first
+
+// Tty ioctl's except for those supported only for backwards compatibility
+// with the old tty driver.
+
+// Window/terminal size structure.  This information is stored by the kernel
+// in order to provide a consistent interface, but is not used by the kernel.
+type Winsize = struct {
+	Fws_row    uint16
+	Fws_col    uint16
+	Fws_xpixel uint16
+	Fws_ypixel uint16
+} /* ttycom.h:82:1 */
+
+// 8-10 compat
+// 15 unused
+// 17-18 compat
+// 127-124 compat
+// 117-116 compat
+// 105 unused
+
+// END OF PROTECTED INCLUDE.
+
+// Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+// Copyright (c) 1997 Apple Computer, Inc. All Rights Reserved
+// -
+// Copyright (c) 1982, 1986, 1993
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. All advertising materials mentioning features or use of this software
+//    must display the following acknowledgement:
+//      This product includes software developed by the University of
+//      California, Berkeley and its contributors.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttydefaults.h	8.4 (Berkeley) 1/21/94
+
+// System wide defaults for terminal state.
+
+// Defaults on "first" open.
+
+// Control Character Defaults
+// compat
+
+// PROTECTED INCLUSION ENDS HERE
+
+// #define TTYDEFCHARS to include an array of default control characters.
+// Copyright (c) 2004, 2008, 2009 Apple Inc. All rights reserved.
+//
+// @APPLE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this
+// file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_LICENSE_HEADER_END@
+
+// Copyright (c) 2003-2007 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+
+// Copyright (c) 2003-2007 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+
+type X__darwin_nl_item = int32        /* _types.h:40:14 */
+type X__darwin_wctrans_t = int32      /* _types.h:41:14 */
+type X__darwin_wctype_t = X__uint32_t /* _types.h:43:20 */
+
+// Copyright (c) 2003-2012 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+// Copyright (c) 2003-2007 Apple Inc. All rights reserved.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+//
+// This file contains Original Code and/or Modifications of Original Code
+// as defined in and that are subject to the Apple Public Source License
+// Version 2.0 (the 'License'). You may not use this file except in
+// compliance with the License. The rights granted to you under the License
+// may not be used to create, or enable the creation or redistribution of,
+// unlawful or unlicensed copies of an Apple operating system, or to
+// circumvent, violate, or enable the circumvention or violation of, any
+// terms of an Apple operating system software license agreement.
+//
+// Please obtain a copy of the License at
+// http://www.opensource.apple.com/apsl/ and read it before using this file.
+//
+// The Original Code and all software distributed under the License are
+// distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+// EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+// INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+// Please see the License for the specific language governing rights and
+// limitations under the License.
+//
+// @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+
+type Pid_t = X__darwin_pid_t /* _pid_t.h:31:31 */
+
+var _ int8 /* gen.c:2:13: */
diff --git a/vendor/modernc.org/libc/termios/termios_freebsd_386.go b/vendor/modernc.org/libc/termios/termios_freebsd_386.go
new file mode 100644
index 0000000..963133a
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/termios_freebsd_386.go
@@ -0,0 +1,1002 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_freebsd_386.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+import (
+	"math"
+	"reflect"
+	"sync/atomic"
+	"unsafe"
+)
+
+var _ = math.Pi
+var _ reflect.Kind
+var _ atomic.Value
+var _ unsafe.Pointer
+
+const (
+	ALTWERASE            = 0x00000200 // _termios.h:171:1:
+	B0                   = 0          // _termios.h:186:1:
+	B1000000             = 1000000    // _termios.h:213:1:
+	B110                 = 110        // _termios.h:189:1:
+	B115200              = 115200     // _termios.h:208:1:
+	B1200                = 1200       // _termios.h:195:1:
+	B134                 = 134        // _termios.h:190:1:
+	B14400               = 14400      // _termios.h:204:1:
+	B150                 = 150        // _termios.h:191:1:
+	B1500000             = 1500000    // _termios.h:214:1:
+	B1800                = 1800       // _termios.h:196:1:
+	B19200               = 19200      // _termios.h:200:1:
+	B200                 = 200        // _termios.h:192:1:
+	B2000000             = 2000000    // _termios.h:215:1:
+	B230400              = 230400     // _termios.h:209:1:
+	B2400                = 2400       // _termios.h:197:1:
+	B2500000             = 2500000    // _termios.h:216:1:
+	B28800               = 28800      // _termios.h:205:1:
+	B300                 = 300        // _termios.h:193:1:
+	B3000000             = 3000000    // _termios.h:217:1:
+	B3500000             = 3500000    // _termios.h:218:1:
+	B38400               = 38400      // _termios.h:201:1:
+	B4000000             = 4000000    // _termios.h:219:1:
+	B460800              = 460800     // _termios.h:210:1:
+	B4800                = 4800       // _termios.h:198:1:
+	B50                  = 50         // _termios.h:187:1:
+	B500000              = 500000     // _termios.h:211:1:
+	B57600               = 57600      // _termios.h:206:1:
+	B600                 = 600        // _termios.h:194:1:
+	B7200                = 7200       // _termios.h:203:1:
+	B75                  = 75         // _termios.h:188:1:
+	B76800               = 76800      // _termios.h:207:1:
+	B921600              = 921600     // _termios.h:212:1:
+	B9600                = 9600       // _termios.h:199:1:
+	BRKINT               = 0x00000002 // _termios.h:86:1:
+	CBRK                 = 255        // ttydefaults.h:89:1:
+	CCAR_OFLOW           = 0x00100000 // _termios.h:145:1:
+	CCTS_OFLOW           = 0x00010000 // _termios.h:140:1:
+	CDISCARD             = 15         // ttydefaults.h:84:1:
+	CDSR_OFLOW           = 0x00080000 // _termios.h:144:1:
+	CDSUSP               = 25         // ttydefaults.h:80:1:
+	CDTR_IFLOW           = 0x00040000 // _termios.h:143:1:
+	CEOF                 = 4          // ttydefaults.h:69:1:
+	CEOL                 = 0xff       // ttydefaults.h:70:1:
+	CEOT                 = 4          // ttydefaults.h:87:1:
+	CERASE               = 127        // ttydefaults.h:71:1:
+	CERASE2              = 8          // ttydefaults.h:72:1:
+	CFLUSH               = 15         // ttydefaults.h:91:1:
+	CIGNORE              = 0x00000001 // _termios.h:126:1:
+	CINTR                = 3          // ttydefaults.h:73:1:
+	CKILL                = 21         // ttydefaults.h:75:1:
+	CLNEXT               = 22         // ttydefaults.h:83:1:
+	CLOCAL               = 0x00008000 // _termios.h:138:1:
+	CMIN                 = 1          // ttydefaults.h:76:1:
+	CNO_RTSDTR           = 0x00200000 // _termios.h:146:1:
+	CQUIT                = 28         // ttydefaults.h:77:1:
+	CREAD                = 0x00000800 // _termios.h:134:1:
+	CREPRINT             = 18         // ttydefaults.h:86:1:
+	CRPRNT               = 18         // ttydefaults.h:90:1:
+	CRTSCTS              = 196608     // _termios.h:141:1:
+	CRTS_IFLOW           = 0x00020000 // _termios.h:142:1:
+	CS5                  = 0x00000000 // _termios.h:129:1:
+	CS6                  = 0x00000100 // _termios.h:130:1:
+	CS7                  = 0x00000200 // _termios.h:131:1:
+	CS8                  = 0x00000300 // _termios.h:132:1:
+	CSIZE                = 0x00000300 // _termios.h:128:1:
+	CSTART               = 17         // ttydefaults.h:81:1:
+	CSTATUS              = 20         // ttydefaults.h:74:1:
+	CSTOP                = 19         // ttydefaults.h:82:1:
+	CSTOPB               = 0x00000400 // _termios.h:133:1:
+	CSUSP                = 26         // ttydefaults.h:78:1:
+	CTIME                = 0          // ttydefaults.h:79:1:
+	CWERASE              = 23         // ttydefaults.h:85:1:
+	ECHO                 = 0x00000008 // _termios.h:162:1:
+	ECHOCTL              = 0x00000040 // _termios.h:166:1:
+	ECHOE                = 0x00000002 // _termios.h:160:1:
+	ECHOK                = 0x00000004 // _termios.h:161:1:
+	ECHOKE               = 0x00000001 // _termios.h:158:1:
+	ECHONL               = 0x00000010 // _termios.h:163:1:
+	ECHOPRT              = 0x00000020 // _termios.h:165:1:
+	EXTA                 = 19200      // _termios.h:220:1:
+	EXTB                 = 38400      // _termios.h:221:1:
+	EXTPROC              = 0x00000800 // _termios.h:174:1:
+	FLUSHO               = 0x00800000 // _termios.h:177:1:
+	H4DISC               = 7          // ttycom.h:135:1:
+	HUPCL                = 0x00004000 // _termios.h:137:1:
+	ICANON               = 0x00000100 // _termios.h:169:1:
+	ICRNL                = 0x00000100 // _termios.h:93:1:
+	IEXTEN               = 0x00000400 // _termios.h:173:1:
+	IGNBRK               = 0x00000001 // _termios.h:85:1:
+	IGNCR                = 0x00000080 // _termios.h:92:1:
+	IGNPAR               = 0x00000004 // _termios.h:87:1:
+	IMAXBEL              = 0x00002000 // _termios.h:100:1:
+	INLCR                = 0x00000040 // _termios.h:91:1:
+	INPCK                = 0x00000010 // _termios.h:89:1:
+	IOCPARM_MASK         = 8191       // ioccom.h:49:1:
+	IOCPARM_MAX          = 8192       // ioccom.h:54:1:
+	IOCPARM_SHIFT        = 13         // ioccom.h:48:1:
+	IOC_DIRMASK          = 3758096384 // ioccom.h:60:1:
+	IOC_IN               = 0x80000000 // ioccom.h:58:1:
+	IOC_INOUT            = 3221225472 // ioccom.h:59:1:
+	IOC_OUT              = 0x40000000 // ioccom.h:57:1:
+	IOC_VOID             = 0x20000000 // ioccom.h:56:1:
+	ISIG                 = 0x00000080 // _termios.h:168:1:
+	ISTRIP               = 0x00000020 // _termios.h:90:1:
+	IXANY                = 0x00000800 // _termios.h:97:1:
+	IXOFF                = 0x00000400 // _termios.h:95:1:
+	IXON                 = 0x00000200 // _termios.h:94:1:
+	MDMBUF               = 1048576    // termios.h:52:1:
+	NCCS                 = 20         // _termios.h:78:1:
+	NETGRAPHDISC         = 6          // ttycom.h:134:1:
+	NOFLSH               = 0x80000000 // _termios.h:181:1:
+	NOKERNINFO           = 0x02000000 // _termios.h:178:1:
+	OCRNL                = 0x00000010 // _termios.h:117:1:
+	ONLCR                = 0x00000002 // _termios.h:108:1:
+	ONLRET               = 0x00000040 // _termios.h:119:1:
+	ONOCR                = 0x00000020 // _termios.h:118:1:
+	ONOEOT               = 0x00000008 // _termios.h:114:1:
+	OPOST                = 0x00000001 // _termios.h:106:1:
+	OXTABS               = 4          // termios.h:51:1:
+	PARENB               = 0x00001000 // _termios.h:135:1:
+	PARMRK               = 0x00000008 // _termios.h:88:1:
+	PARODD               = 0x00002000 // _termios.h:136:1:
+	PENDIN               = 0x20000000 // _termios.h:179:1:
+	PPPDISC              = 5          // ttycom.h:133:1:
+	SLIPDISC             = 4          // ttycom.h:132:1:
+	TAB0                 = 0x00000000 // _termios.h:112:1:
+	TAB3                 = 0x00000004 // _termios.h:113:1:
+	TABDLY               = 0x00000004 // _termios.h:111:1:
+	TCIFLUSH             = 1          // termios.h:69:1:
+	TCIOFF               = 3          // termios.h:74:1:
+	TCIOFLUSH            = 3          // termios.h:71:1:
+	TCION                = 4          // termios.h:75:1:
+	TCOFLUSH             = 2          // termios.h:70:1:
+	TCOOFF               = 1          // termios.h:72:1:
+	TCOON                = 2          // termios.h:73:1:
+	TCSADRAIN            = 1          // termios.h:63:1:
+	TCSAFLUSH            = 2          // termios.h:64:1:
+	TCSANOW              = 0          // termios.h:62:1:
+	TCSASOFT             = 0x10       // termios.h:66:1:
+	TIOCM_CAR            = 64         // ttycom.h:103:1:
+	TIOCM_CD             = 64         // ttycom.h:102:1:
+	TIOCM_CTS            = 0040       // ttycom.h:98:1:
+	TIOCM_DCD            = 0100       // ttycom.h:99:1:
+	TIOCM_DSR            = 0400       // ttycom.h:101:1:
+	TIOCM_DTR            = 0002       // ttycom.h:94:1:
+	TIOCM_LE             = 0001       // ttycom.h:93:1:
+	TIOCM_RI             = 0200       // ttycom.h:100:1:
+	TIOCM_RNG            = 128        // ttycom.h:104:1:
+	TIOCM_RTS            = 0004       // ttycom.h:95:1:
+	TIOCM_SR             = 0020       // ttycom.h:97:1:
+	TIOCM_ST             = 0010       // ttycom.h:96:1:
+	TIOCPKT_DATA         = 0x00       // ttycom.h:111:1:
+	TIOCPKT_DOSTOP       = 0x20       // ttycom.h:117:1:
+	TIOCPKT_FLUSHREAD    = 0x01       // ttycom.h:112:1:
+	TIOCPKT_FLUSHWRITE   = 0x02       // ttycom.h:113:1:
+	TIOCPKT_IOCTL        = 0x40       // ttycom.h:118:1:
+	TIOCPKT_NOSTOP       = 0x10       // ttycom.h:116:1:
+	TIOCPKT_START        = 0x08       // ttycom.h:115:1:
+	TIOCPKT_STOP         = 0x04       // ttycom.h:114:1:
+	TOSTOP               = 0x00400000 // _termios.h:175:1:
+	TTYDEF_CFLAG         = 19200      // ttydefaults.h:55:1:
+	TTYDEF_IFLAG         = 11010      // ttydefaults.h:49:1:
+	TTYDEF_LFLAG         = 1483       // ttydefaults.h:54:1:
+	TTYDEF_LFLAG_ECHO    = 1483       // ttydefaults.h:52:1:
+	TTYDEF_LFLAG_NOECHO  = 1408       // ttydefaults.h:51:1:
+	TTYDEF_OFLAG         = 3          // ttydefaults.h:50:1:
+	TTYDEF_SPEED         = 9600       // ttydefaults.h:56:1:
+	TTYDISC              = 0          // ttycom.h:131:1:
+	VDISCARD             = 15         // _termios.h:70:1:
+	VDSUSP               = 11         // _termios.h:64:1:
+	VEOF                 = 0          // _termios.h:45:1:
+	VEOL                 = 1          // _termios.h:46:1:
+	VEOL2                = 2          // _termios.h:48:1:
+	VERASE               = 3          // _termios.h:50:1:
+	VERASE2              = 7          // _termios.h:57:1:
+	VINTR                = 8          // _termios.h:60:1:
+	VKILL                = 5          // _termios.h:54:1:
+	VLNEXT               = 14         // _termios.h:69:1:
+	VMIN                 = 16         // _termios.h:72:1:
+	VQUIT                = 9          // _termios.h:61:1:
+	VREPRINT             = 6          // _termios.h:56:1:
+	VSTART               = 12         // _termios.h:66:1:
+	VSTATUS              = 18         // _termios.h:75:1:
+	VSTOP                = 13         // _termios.h:67:1:
+	VSUSP                = 10         // _termios.h:62:1:
+	VTIME                = 17         // _termios.h:73:1:
+	VWERASE              = 4          // _termios.h:52:1:
+	X_FILE_OFFSET_BITS   = 64         // <builtin>:25:1:
+	X_ILP32              = 1          // <predefined>:1:1:
+	X_MACHINE__LIMITS_H_ = 0          // _limits.h:36:1:
+	X_MACHINE__TYPES_H_  = 0          // _types.h:42:1:
+	X_Nonnull            = 0          // cdefs.h:790:1:
+	X_Null_unspecified   = 0          // cdefs.h:792:1:
+	X_Nullable           = 0          // cdefs.h:791:1:
+	X_PID_T_DECLARED     = 0          // termios.h:47:1:
+	X_POSIX_VDISABLE     = 0xff       // _termios.h:80:1:
+	X_SYS_CDEFS_H_       = 0          // cdefs.h:39:1:
+	X_SYS_IOCCOM_H_      = 0          // ioccom.h:36:1:
+	X_SYS_TTYCOM_H_      = 0          // ttycom.h:41:1:
+	X_SYS_TTYDEFAULTS_H_ = 0          // ttydefaults.h:44:1:
+	X_SYS__TERMIOS_H_    = 0          // _termios.h:36:1:
+	X_SYS__TYPES_H_      = 0          // _types.h:32:1:
+	X_SYS__WINSIZE_H_    = 0          // _winsize.h:36:1:
+	X_TERMIOS_H_         = 0          // termios.h:36:1:
+	I386                 = 1          // <predefined>:335:1:
+	Unix                 = 1          // <predefined>:336:1:
+)
+
+type Ptrdiff_t = int32 /* <builtin>:3:26 */
+
+type Size_t = uint32 /* <builtin>:9:23 */
+
+type Wchar_t = int32 /* <builtin>:15:24 */
+
+type X__builtin_va_list = uintptr /* <builtin>:46:14 */
+type X__float128 = float64        /* <builtin>:47:21 */
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1988, 1989, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)termios.h	8.3 (Berkeley) 3/28/94
+// $FreeBSD$
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1991, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// This code is derived from software contributed to Berkeley by
+// Berkeley Software Design, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)cdefs.h	8.8 (Berkeley) 1/9/95
+// $FreeBSD$
+
+// Testing against Clang-specific extensions.
+
+// This code has been put in place to help reduce the addition of
+// compiler specific defines in FreeBSD code.  It helps to aid in
+// having a compiler-agnostic source tree.
+
+// Compiler memory barriers, specific to gcc and clang.
+
+// XXX: if __GNUC__ >= 2: not tested everywhere originally, where replaced
+
+// Macro to test if we're using a specific version of gcc or later.
+
+// The __CONCAT macro is used to concatenate parts of symbol names, e.g.
+// with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
+// The __CONCAT macro is a bit tricky to use if it must work in non-ANSI
+// mode -- there must be no spaces between its arguments, and for nested
+// __CONCAT's, all the __CONCAT's must be at the left.  __CONCAT can also
+// concatenate double-quoted strings produced by the __STRING macro, but
+// this only works with ANSI C.
+//
+// __XSTRING is like __STRING, but it expands any macros in its argument
+// first.  It is only available with ANSI C.
+
+// Compiler-dependent macros to help declare dead (non-returning) and
+// pure (no side effects) functions, and unused variables.  They are
+// null except for versions of gcc that are known to support the features
+// properly (old versions of gcc-2 supported the dead and pure features
+// in a different (wrong) way).  If we do not provide an implementation
+// for a given compiler, let the compile fail if it is told to use
+// a feature that we cannot live without.
+
+// Keywords added in C11.
+
+// Emulation of C11 _Generic().  Unlike the previously defined C11
+// keywords, it is not possible to implement this using exactly the same
+// syntax.  Therefore implement something similar under the name
+// __generic().  Unlike _Generic(), this macro can only distinguish
+// between a single type, so it requires nested invocations to
+// distinguish multiple cases.
+
+// C99 Static array indices in function parameter declarations.  Syntax such as:
+// void bar(int myArray[static 10]);
+// is allowed in C99 but not in C++.  Define __min_size appropriately so
+// headers using it can be compiled in either language.  Use like this:
+// void bar(int myArray[__min_size(10)]);
+
+// XXX: should use `#if __STDC_VERSION__ < 199901'.
+
+// C++11 exposes a load of C99 stuff
+
+// GCC 2.95 provides `__restrict' as an extension to C90 to support the
+// C99-specific `restrict' type qualifier.  We happen to use `__restrict' as
+// a way to define the `restrict' type qualifier without disturbing older
+// software that is unaware of C99 keywords.
+
+// GNU C version 2.96 adds explicit branch prediction so that
+// the CPU back-end can hint the processor and also so that
+// code blocks can be reordered such that the predicted path
+// sees a more linear flow, thus improving cache behavior, etc.
+//
+// The following two macros provide us with a way to utilize this
+// compiler feature.  Use __predict_true() if you expect the expression
+// to evaluate to true, and __predict_false() if you expect the
+// expression to evaluate to false.
+//
+// A few notes about usage:
+//
+//	* Generally, __predict_false() error condition checks (unless
+//	  you have some _strong_ reason to do otherwise, in which case
+//	  document it), and/or __predict_true() `no-error' condition
+//	  checks, assuming you want to optimize for the no-error case.
+//
+//	* Other than that, if you don't know the likelihood of a test
+//	  succeeding from empirical or other `hard' evidence, don't
+//	  make predictions.
+//
+//	* These are meant to be used in places that are run `a lot'.
+//	  It is wasteful to make predictions in code that is run
+//	  seldomly (e.g. at subsystem initialization time) as the
+//	  basic block reordering that this affects can often generate
+//	  larger code.
+
+// We define this here since <stddef.h>, <sys/queue.h>, and <sys/types.h>
+// require it.
+
+// Given the pointer x to the member m of the struct s, return
+// a pointer to the containing structure.  When using GCC, we first
+// assign pointer x to a local variable, to check that its type is
+// compatible with member m.
+
+// Compiler-dependent macros to declare that functions take printf-like
+// or scanf-like arguments.  They are null except for versions of gcc
+// that are known to support the features properly (old versions of gcc-2
+// didn't permit keeping the keywords out of the application namespace).
+
+// Compiler-dependent macros that rely on FreeBSD-specific extensions.
+
+// Embed the rcs id of a source file in the resulting library.  Note that in
+// more recent ELF binutils, we use .ident allowing the ID to be stripped.
+// Usage:
+//	__FBSDID("$FreeBSD$");
+
+// -
+// The following definitions are an extension of the behavior originally
+// implemented in <sys/_posix.h>, but with a different level of granularity.
+// POSIX.1 requires that the macros we test be defined before any standard
+// header file is included.
+//
+// Here's a quick run-down of the versions:
+//  defined(_POSIX_SOURCE)		1003.1-1988
+//  _POSIX_C_SOURCE == 1		1003.1-1990
+//  _POSIX_C_SOURCE == 2		1003.2-1992 C Language Binding Option
+//  _POSIX_C_SOURCE == 199309		1003.1b-1993
+//  _POSIX_C_SOURCE == 199506		1003.1c-1995, 1003.1i-1995,
+//					and the omnibus ISO/IEC 9945-1: 1996
+//  _POSIX_C_SOURCE == 200112		1003.1-2001
+//  _POSIX_C_SOURCE == 200809		1003.1-2008
+//
+// In addition, the X/Open Portability Guide, which is now the Single UNIX
+// Specification, defines a feature-test macro which indicates the version of
+// that specification, and which subsumes _POSIX_C_SOURCE.
+//
+// Our macros begin with two underscores to avoid namespace screwage.
+
+// Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1.
+
+// Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2.
+
+// Deal with various X/Open Portability Guides and Single UNIX Spec.
+
+// Deal with all versions of POSIX.  The ordering relative to the tests above is
+// important.
+// -
+// Deal with _ANSI_SOURCE:
+// If it is defined, and no other compilation environment is explicitly
+// requested, then define our internal feature-test macros to zero.  This
+// makes no difference to the preprocessor (undefined symbols in preprocessing
+// expressions are defined to have value zero), but makes it more convenient for
+// a test program to print out the values.
+//
+// If a program mistakenly defines _ANSI_SOURCE and some other macro such as
+// _POSIX_C_SOURCE, we will assume that it wants the broader compilation
+// environment (and in fact we will never get here).
+
+// User override __EXT1_VISIBLE
+
+// Old versions of GCC use non-standard ARM arch symbols; acle-compat.h
+// translates them to __ARM_ARCH and the modern feature symbols defined by ARM.
+
+// Nullability qualifiers: currently only supported by Clang.
+
+// Type Safety Checking
+//
+// Clang provides additional attributes to enable checking type safety
+// properties that cannot be enforced by the C type system.
+
+// Lock annotations.
+//
+// Clang provides support for doing basic thread-safety tests at
+// compile-time, by marking which locks will/should be held when
+// entering/leaving a functions.
+//
+// Furthermore, it is also possible to annotate variables and structure
+// members to enforce that they are only accessed when certain locks are
+// held.
+
+// Structure implements a lock.
+
+// Function acquires an exclusive or shared lock.
+
+// Function attempts to acquire an exclusive or shared lock.
+
+// Function releases a lock.
+
+// Function asserts that an exclusive or shared lock is held.
+
+// Function requires that an exclusive or shared lock is or is not held.
+
+// Function should not be analyzed.
+
+// Function or variable should not be sanitized, e.g., by AddressSanitizer.
+// GCC has the nosanitize attribute, but as a function attribute only, and
+// warns on use as a variable attribute.
+
+// Guard variables and structure members by lock.
+
+// Alignment builtins for better type checking and improved code generation.
+// Provide fallback versions for other compilers (GCC/Clang < 10):
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1988, 1989, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)termios.h	8.3 (Berkeley) 3/28/94
+// $FreeBSD$
+
+// Special Control Characters
+//
+// Index into c_cc[] character array.
+//
+//	Name	     Subscript	Enabled by
+//			7	   ex-spare 1
+//			19	   spare 2
+
+// Input flags - software input processing
+
+// Output flags - software output processing
+
+// Control flags - hardware control of terminal
+
+// "Local" flags - dumping ground for other state
+//
+// Warning: some flags in this structure begin with
+// the letter "I" and look like they belong in the
+// input flag.
+
+// Standard speeds
+
+type Tcflag_t = uint32 /* _termios.h:224:22 */
+type Cc_t = uint8      /* _termios.h:225:23 */
+type Speed_t = uint32  /* _termios.h:226:22 */
+
+type Termios = struct {
+	Fc_iflag  Tcflag_t
+	Fc_oflag  Tcflag_t
+	Fc_cflag  Tcflag_t
+	Fc_lflag  Tcflag_t
+	Fc_cc     [20]Cc_t
+	Fc_ispeed Speed_t
+	Fc_ospeed Speed_t
+} /* _termios.h:228:1 */
+
+// -
+// SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+//
+// Copyright (c) 2002 Mike Barcroft <mike@FreeBSD.org>
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+// $FreeBSD$
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1991, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// This code is derived from software contributed to Berkeley by
+// Berkeley Software Design, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)cdefs.h	8.8 (Berkeley) 1/9/95
+// $FreeBSD$
+
+// -
+// This file is in the public domain.
+// $FreeBSD$
+
+// -
+// SPDX-License-Identifier: BSD-4-Clause
+//
+// Copyright (c) 2002 Mike Barcroft <mike@FreeBSD.org>
+// Copyright (c) 1990, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. All advertising materials mentioning features or use of this software
+//    must display the following acknowledgement:
+//	This product includes software developed by the University of
+//	California, Berkeley and its contributors.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	From: @(#)ansi.h	8.2 (Berkeley) 1/4/94
+//	From: @(#)types.h	8.3 (Berkeley) 1/5/94
+// $FreeBSD$
+
+// -
+// This file is in the public domain.
+// $FreeBSD$
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1988, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)limits.h	8.3 (Berkeley) 1/4/94
+// $FreeBSD$
+
+// According to ANSI (section 2.2.4.2), the values below must be usable by
+// #if preprocessing directives.  Additionally, the expression must have the
+// same type as would an expression that is an object of the corresponding
+// type converted according to the integral promotions.  The subtraction for
+// INT_MIN, etc., is so the value is not unsigned; e.g., 0x80000000 is an
+// unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
+
+// max value for an unsigned long long
+
+// Minimum signal stack size.
+
+// Basic types upon which most other types are built.
+type X__int8_t = int8     /* _types.h:55:22 */
+type X__uint8_t = uint8   /* _types.h:56:24 */
+type X__int16_t = int16   /* _types.h:57:17 */
+type X__uint16_t = uint16 /* _types.h:58:25 */
+type X__int32_t = int32   /* _types.h:59:15 */
+type X__uint32_t = uint32 /* _types.h:60:23 */
+
+type X__int64_t = int64 /* _types.h:66:20 */
+
+type X__uint64_t = uint64 /* _types.h:68:28 */
+
+// Standard type definitions.
+type X__clock_t = uint32             /* _types.h:84:23 */
+type X__critical_t = X__int32_t      /* _types.h:85:19 */
+type X__double_t = float64           /* _types.h:87:21 */
+type X__float_t = float64            /* _types.h:88:21 */
+type X__intfptr_t = X__int32_t       /* _types.h:90:19 */
+type X__intptr_t = X__int32_t        /* _types.h:91:19 */
+type X__intmax_t = X__int64_t        /* _types.h:93:19 */
+type X__int_fast8_t = X__int32_t     /* _types.h:94:19 */
+type X__int_fast16_t = X__int32_t    /* _types.h:95:19 */
+type X__int_fast32_t = X__int32_t    /* _types.h:96:19 */
+type X__int_fast64_t = X__int64_t    /* _types.h:97:19 */
+type X__int_least8_t = X__int8_t     /* _types.h:98:18 */
+type X__int_least16_t = X__int16_t   /* _types.h:99:19 */
+type X__int_least32_t = X__int32_t   /* _types.h:100:19 */
+type X__int_least64_t = X__int64_t   /* _types.h:101:19 */
+type X__ptrdiff_t = X__int32_t       /* _types.h:112:19 */
+type X__register_t = X__int32_t      /* _types.h:113:19 */
+type X__segsz_t = X__int32_t         /* _types.h:114:19 */
+type X__size_t = X__uint32_t         /* _types.h:115:20 */
+type X__ssize_t = X__int32_t         /* _types.h:116:19 */
+type X__time_t = X__int32_t          /* _types.h:117:19 */
+type X__uintfptr_t = X__uint32_t     /* _types.h:118:20 */
+type X__uintptr_t = X__uint32_t      /* _types.h:119:20 */
+type X__uintmax_t = X__uint64_t      /* _types.h:121:20 */
+type X__uint_fast8_t = X__uint32_t   /* _types.h:122:20 */
+type X__uint_fast16_t = X__uint32_t  /* _types.h:123:20 */
+type X__uint_fast32_t = X__uint32_t  /* _types.h:124:20 */
+type X__uint_fast64_t = X__uint64_t  /* _types.h:125:20 */
+type X__uint_least8_t = X__uint8_t   /* _types.h:126:19 */
+type X__uint_least16_t = X__uint16_t /* _types.h:127:20 */
+type X__uint_least32_t = X__uint32_t /* _types.h:128:20 */
+type X__uint_least64_t = X__uint64_t /* _types.h:129:20 */
+type X__u_register_t = X__uint32_t   /* _types.h:136:20 */
+type X__vm_offset_t = X__uint32_t    /* _types.h:137:20 */
+type X__vm_paddr_t = X__uint64_t     /* _types.h:138:20 */
+type X__vm_size_t = X__uint32_t      /* _types.h:139:20 */
+type X___wchar_t = int32             /* _types.h:141:14 */
+
+// Standard type definitions.
+type X__blksize_t = X__int32_t   /* _types.h:40:19 */ // file block size
+type X__blkcnt_t = X__int64_t    /* _types.h:41:19 */ // file block count
+type X__clockid_t = X__int32_t   /* _types.h:42:19 */ // clock_gettime()...
+type X__fflags_t = X__uint32_t   /* _types.h:43:20 */ // file flags
+type X__fsblkcnt_t = X__uint64_t /* _types.h:44:20 */
+type X__fsfilcnt_t = X__uint64_t /* _types.h:45:20 */
+type X__gid_t = X__uint32_t      /* _types.h:46:20 */
+type X__id_t = X__int64_t        /* _types.h:47:19 */ // can hold a gid_t, pid_t, or uid_t
+type X__ino_t = X__uint64_t      /* _types.h:48:20 */ // inode number
+type X__key_t = int32            /* _types.h:49:15 */ // IPC key (for Sys V IPC)
+type X__lwpid_t = X__int32_t     /* _types.h:50:19 */ // Thread ID (a.k.a. LWP)
+type X__mode_t = X__uint16_t     /* _types.h:51:20 */ // permissions
+type X__accmode_t = int32        /* _types.h:52:14 */ // access permissions
+type X__nl_item = int32          /* _types.h:53:14 */
+type X__nlink_t = X__uint64_t    /* _types.h:54:20 */ // link count
+type X__off_t = X__int64_t       /* _types.h:55:19 */ // file offset
+type X__off64_t = X__int64_t     /* _types.h:56:19 */ // file offset (alias)
+type X__pid_t = X__int32_t       /* _types.h:57:19 */ // process [group]
+type X__rlim_t = X__int64_t      /* _types.h:58:19 */ // resource limit - intentionally
+// signed, because of legacy code
+// that uses -1 for RLIM_INFINITY
+type X__sa_family_t = X__uint8_t /* _types.h:61:19 */
+type X__socklen_t = X__uint32_t  /* _types.h:62:20 */
+type X__suseconds_t = int32      /* _types.h:63:15 */ // microseconds (signed)
+type X__timer_t = uintptr        /* _types.h:64:24 */ // timer_gettime()...
+type X__mqd_t = uintptr          /* _types.h:65:21 */ // mq_open()...
+type X__uid_t = X__uint32_t      /* _types.h:66:20 */
+type X__useconds_t = uint32      /* _types.h:67:22 */ // microseconds (unsigned)
+type X__cpuwhich_t = int32       /* _types.h:68:14 */ // which parameter for cpuset.
+type X__cpulevel_t = int32       /* _types.h:69:14 */ // level parameter for cpuset.
+type X__cpusetid_t = int32       /* _types.h:70:14 */ // cpuset identifier.
+type X__daddr_t = X__int64_t     /* _types.h:71:19 */ // bwrite(3), FIOBMAP2, etc
+
+// Unusual type definitions.
+// rune_t is declared to be an “int” instead of the more natural
+// “unsigned long” or “long”.  Two things are happening here.  It is not
+// unsigned so that EOF (-1) can be naturally assigned to it and used.  Also,
+// it looks like 10646 will be a 31 bit standard.  This means that if your
+// ints cannot hold 32 bits, you will be in trouble.  The reason an int was
+// chosen over a long is that the is*() and to*() routines take ints (says
+// ANSI C), but they use __ct_rune_t instead of int.
+//
+// NOTE: rune_t is not covered by ANSI nor other standards, and should not
+// be instantiated outside of lib/libc/locale.  Use wchar_t.  wint_t and
+// rune_t must be the same type.  Also, wint_t should be able to hold all
+// members of the largest character set plus one extra value (WEOF), and
+// must be at least 16 bits.
+type X__ct_rune_t = int32     /* _types.h:91:14 */ // arg type for ctype funcs
+type X__rune_t = X__ct_rune_t /* _types.h:92:21 */ // rune_t (see above)
+type X__wint_t = X__ct_rune_t /* _types.h:93:21 */ // wint_t (see above)
+
+// Clang already provides these types as built-ins, but only in C++ mode.
+type X__char16_t = X__uint_least16_t /* _types.h:97:26 */
+type X__char32_t = X__uint_least32_t /* _types.h:98:26 */
+// In C++11, char16_t and char32_t are built-in types.
+
+type X__max_align_t = struct {
+	F__max_align1 int64
+	F__max_align2 float64
+} /* _types.h:111:3 */
+
+type X__dev_t = X__uint64_t /* _types.h:113:20 */ // device number
+
+type X__fixpt_t = X__uint32_t /* _types.h:115:20 */ // fixed point number
+
+// mbstate_t is an opaque object to keep conversion state during multibyte
+// stream conversions.
+type X__mbstate_t = struct {
+	F__ccgo_pad1 [0]uint32
+	F__mbstate8  [128]int8
+} /* _types.h:124:3 */
+
+type X__rman_res_t = X__uintmax_t /* _types.h:126:25 */
+
+// Types for varargs. These are all provided by builtin types these
+// days, so centralize their definition.
+type X__va_list = X__builtin_va_list /* _types.h:133:27 */ // internally known to gcc
+type X__gnuc_va_list = X__va_list    /* _types.h:140:20 */ // compatibility w/GNU headers
+
+// When the following macro is defined, the system uses 64-bit inode numbers.
+// Programs can use this to avoid including <sys/param.h>, with its associated
+// namespace pollution.
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1988, 1989, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttycom.h	8.1 (Berkeley) 3/28/94
+// $FreeBSD$
+
+// Window/terminal size structure.  This information is stored by the kernel
+// in order to provide a consistent interface, but is not used by the kernel.
+type Winsize = struct {
+	Fws_row    uint16
+	Fws_col    uint16
+	Fws_xpixel uint16
+	Fws_ypixel uint16
+} /* _winsize.h:42:1 */
+
+type Pid_t = X__pid_t /* termios.h:46:18 */
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1988, 1989, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttycom.h	8.1 (Berkeley) 3/28/94
+// $FreeBSD$
+
+// Tty ioctl's except for those supported only for backwards compatibility
+// with the old tty driver.
+
+// 0-2 compat
+// 3-7 unused
+// 8-10 compat
+// 11-12 unused
+// 17-18 compat
+// 23-25 unused
+// 29-85 unused
+// 88 unused
+// 89-91 conflicts: tun and tap
+// 92-93 tun and tap
+// 94-97 conflicts: tun and tap
+// 100 unused
+// 105 unused
+// 116-117 compat
+// 124-127 compat
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1982, 1986, 1993
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttydefaults.h	8.4 (Berkeley) 1/21/94
+// $FreeBSD$
+
+// System wide defaults for terminal state.
+
+// Defaults on "first" open.
+
+// Control Character Defaults
+// XXX: A lot of code uses lowercase characters, but control-character
+// conversion is actually only valid when applied to uppercase
+// characters. We just treat lowercase characters as if they were
+// inserted as uppercase.
+// compat
+
+// PROTECTED INCLUSION ENDS HERE
+
+// #define TTYDEFCHARS to include an array of default control characters.
+var _ int8 /* gen.c:2:13: */
diff --git a/vendor/modernc.org/libc/termios/termios_freebsd_amd64.go b/vendor/modernc.org/libc/termios/termios_freebsd_amd64.go
new file mode 100644
index 0000000..96ebf0b
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/termios_freebsd_amd64.go
@@ -0,0 +1,1010 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_freebsd_amd64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+import (
+	"math"
+	"reflect"
+	"sync/atomic"
+	"unsafe"
+)
+
+var _ = math.Pi
+var _ reflect.Kind
+var _ atomic.Value
+var _ unsafe.Pointer
+
+const (
+	ALTWERASE            = 0x00000200 // _termios.h:171:1:
+	B0                   = 0          // _termios.h:186:1:
+	B1000000             = 1000000    // _termios.h:213:1:
+	B110                 = 110        // _termios.h:189:1:
+	B115200              = 115200     // _termios.h:208:1:
+	B1200                = 1200       // _termios.h:195:1:
+	B134                 = 134        // _termios.h:190:1:
+	B14400               = 14400      // _termios.h:204:1:
+	B150                 = 150        // _termios.h:191:1:
+	B1500000             = 1500000    // _termios.h:214:1:
+	B1800                = 1800       // _termios.h:196:1:
+	B19200               = 19200      // _termios.h:200:1:
+	B200                 = 200        // _termios.h:192:1:
+	B2000000             = 2000000    // _termios.h:215:1:
+	B230400              = 230400     // _termios.h:209:1:
+	B2400                = 2400       // _termios.h:197:1:
+	B2500000             = 2500000    // _termios.h:216:1:
+	B28800               = 28800      // _termios.h:205:1:
+	B300                 = 300        // _termios.h:193:1:
+	B3000000             = 3000000    // _termios.h:217:1:
+	B3500000             = 3500000    // _termios.h:218:1:
+	B38400               = 38400      // _termios.h:201:1:
+	B4000000             = 4000000    // _termios.h:219:1:
+	B460800              = 460800     // _termios.h:210:1:
+	B4800                = 4800       // _termios.h:198:1:
+	B50                  = 50         // _termios.h:187:1:
+	B500000              = 500000     // _termios.h:211:1:
+	B57600               = 57600      // _termios.h:206:1:
+	B600                 = 600        // _termios.h:194:1:
+	B7200                = 7200       // _termios.h:203:1:
+	B75                  = 75         // _termios.h:188:1:
+	B76800               = 76800      // _termios.h:207:1:
+	B921600              = 921600     // _termios.h:212:1:
+	B9600                = 9600       // _termios.h:199:1:
+	BRKINT               = 0x00000002 // _termios.h:86:1:
+	CBRK                 = 255        // ttydefaults.h:89:1:
+	CCAR_OFLOW           = 0x00100000 // _termios.h:145:1:
+	CCTS_OFLOW           = 0x00010000 // _termios.h:140:1:
+	CDISCARD             = 15         // ttydefaults.h:84:1:
+	CDSR_OFLOW           = 0x00080000 // _termios.h:144:1:
+	CDSUSP               = 25         // ttydefaults.h:80:1:
+	CDTR_IFLOW           = 0x00040000 // _termios.h:143:1:
+	CEOF                 = 4          // ttydefaults.h:69:1:
+	CEOL                 = 0xff       // ttydefaults.h:70:1:
+	CEOT                 = 4          // ttydefaults.h:87:1:
+	CERASE               = 127        // ttydefaults.h:71:1:
+	CERASE2              = 8          // ttydefaults.h:72:1:
+	CFLUSH               = 15         // ttydefaults.h:91:1:
+	CIGNORE              = 0x00000001 // _termios.h:126:1:
+	CINTR                = 3          // ttydefaults.h:73:1:
+	CKILL                = 21         // ttydefaults.h:75:1:
+	CLNEXT               = 22         // ttydefaults.h:83:1:
+	CLOCAL               = 0x00008000 // _termios.h:138:1:
+	CMIN                 = 1          // ttydefaults.h:76:1:
+	CNO_RTSDTR           = 0x00200000 // _termios.h:146:1:
+	CQUIT                = 28         // ttydefaults.h:77:1:
+	CREAD                = 0x00000800 // _termios.h:134:1:
+	CREPRINT             = 18         // ttydefaults.h:86:1:
+	CRPRNT               = 18         // ttydefaults.h:90:1:
+	CRTSCTS              = 196608     // _termios.h:141:1:
+	CRTS_IFLOW           = 0x00020000 // _termios.h:142:1:
+	CS5                  = 0x00000000 // _termios.h:129:1:
+	CS6                  = 0x00000100 // _termios.h:130:1:
+	CS7                  = 0x00000200 // _termios.h:131:1:
+	CS8                  = 0x00000300 // _termios.h:132:1:
+	CSIZE                = 0x00000300 // _termios.h:128:1:
+	CSTART               = 17         // ttydefaults.h:81:1:
+	CSTATUS              = 20         // ttydefaults.h:74:1:
+	CSTOP                = 19         // ttydefaults.h:82:1:
+	CSTOPB               = 0x00000400 // _termios.h:133:1:
+	CSUSP                = 26         // ttydefaults.h:78:1:
+	CTIME                = 0          // ttydefaults.h:79:1:
+	CWERASE              = 23         // ttydefaults.h:85:1:
+	ECHO                 = 0x00000008 // _termios.h:162:1:
+	ECHOCTL              = 0x00000040 // _termios.h:166:1:
+	ECHOE                = 0x00000002 // _termios.h:160:1:
+	ECHOK                = 0x00000004 // _termios.h:161:1:
+	ECHOKE               = 0x00000001 // _termios.h:158:1:
+	ECHONL               = 0x00000010 // _termios.h:163:1:
+	ECHOPRT              = 0x00000020 // _termios.h:165:1:
+	EXTA                 = 19200      // _termios.h:220:1:
+	EXTB                 = 38400      // _termios.h:221:1:
+	EXTPROC              = 0x00000800 // _termios.h:174:1:
+	FLUSHO               = 0x00800000 // _termios.h:177:1:
+	H4DISC               = 7          // ttycom.h:135:1:
+	HUPCL                = 0x00004000 // _termios.h:137:1:
+	ICANON               = 0x00000100 // _termios.h:169:1:
+	ICRNL                = 0x00000100 // _termios.h:93:1:
+	IEXTEN               = 0x00000400 // _termios.h:173:1:
+	IGNBRK               = 0x00000001 // _termios.h:85:1:
+	IGNCR                = 0x00000080 // _termios.h:92:1:
+	IGNPAR               = 0x00000004 // _termios.h:87:1:
+	IMAXBEL              = 0x00002000 // _termios.h:100:1:
+	INLCR                = 0x00000040 // _termios.h:91:1:
+	INPCK                = 0x00000010 // _termios.h:89:1:
+	IOCPARM_MASK         = 8191       // ioccom.h:49:1:
+	IOCPARM_MAX          = 8192       // ioccom.h:54:1:
+	IOCPARM_SHIFT        = 13         // ioccom.h:48:1:
+	IOC_DIRMASK          = 3758096384 // ioccom.h:60:1:
+	IOC_IN               = 0x80000000 // ioccom.h:58:1:
+	IOC_INOUT            = 3221225472 // ioccom.h:59:1:
+	IOC_OUT              = 0x40000000 // ioccom.h:57:1:
+	IOC_VOID             = 0x20000000 // ioccom.h:56:1:
+	ISIG                 = 0x00000080 // _termios.h:168:1:
+	ISTRIP               = 0x00000020 // _termios.h:90:1:
+	IXANY                = 0x00000800 // _termios.h:97:1:
+	IXOFF                = 0x00000400 // _termios.h:95:1:
+	IXON                 = 0x00000200 // _termios.h:94:1:
+	MDMBUF               = 1048576    // termios.h:52:1:
+	NCCS                 = 20         // _termios.h:78:1:
+	NETGRAPHDISC         = 6          // ttycom.h:134:1:
+	NOFLSH               = 0x80000000 // _termios.h:181:1:
+	NOKERNINFO           = 0x02000000 // _termios.h:178:1:
+	OCRNL                = 0x00000010 // _termios.h:117:1:
+	ONLCR                = 0x00000002 // _termios.h:108:1:
+	ONLRET               = 0x00000040 // _termios.h:119:1:
+	ONOCR                = 0x00000020 // _termios.h:118:1:
+	ONOEOT               = 0x00000008 // _termios.h:114:1:
+	OPOST                = 0x00000001 // _termios.h:106:1:
+	OXTABS               = 4          // termios.h:51:1:
+	PARENB               = 0x00001000 // _termios.h:135:1:
+	PARMRK               = 0x00000008 // _termios.h:88:1:
+	PARODD               = 0x00002000 // _termios.h:136:1:
+	PENDIN               = 0x20000000 // _termios.h:179:1:
+	PPPDISC              = 5          // ttycom.h:133:1:
+	SLIPDISC             = 4          // ttycom.h:132:1:
+	TAB0                 = 0x00000000 // _termios.h:112:1:
+	TAB3                 = 0x00000004 // _termios.h:113:1:
+	TABDLY               = 0x00000004 // _termios.h:111:1:
+	TCIFLUSH             = 1          // termios.h:69:1:
+	TCIOFF               = 3          // termios.h:74:1:
+	TCIOFLUSH            = 3          // termios.h:71:1:
+	TCION                = 4          // termios.h:75:1:
+	TCOFLUSH             = 2          // termios.h:70:1:
+	TCOOFF               = 1          // termios.h:72:1:
+	TCOON                = 2          // termios.h:73:1:
+	TCSADRAIN            = 1          // termios.h:63:1:
+	TCSAFLUSH            = 2          // termios.h:64:1:
+	TCSANOW              = 0          // termios.h:62:1:
+	TCSASOFT             = 0x10       // termios.h:66:1:
+	TIOCM_CAR            = 64         // ttycom.h:103:1:
+	TIOCM_CD             = 64         // ttycom.h:102:1:
+	TIOCM_CTS            = 0040       // ttycom.h:98:1:
+	TIOCM_DCD            = 0100       // ttycom.h:99:1:
+	TIOCM_DSR            = 0400       // ttycom.h:101:1:
+	TIOCM_DTR            = 0002       // ttycom.h:94:1:
+	TIOCM_LE             = 0001       // ttycom.h:93:1:
+	TIOCM_RI             = 0200       // ttycom.h:100:1:
+	TIOCM_RNG            = 128        // ttycom.h:104:1:
+	TIOCM_RTS            = 0004       // ttycom.h:95:1:
+	TIOCM_SR             = 0020       // ttycom.h:97:1:
+	TIOCM_ST             = 0010       // ttycom.h:96:1:
+	TIOCPKT_DATA         = 0x00       // ttycom.h:111:1:
+	TIOCPKT_DOSTOP       = 0x20       // ttycom.h:117:1:
+	TIOCPKT_FLUSHREAD    = 0x01       // ttycom.h:112:1:
+	TIOCPKT_FLUSHWRITE   = 0x02       // ttycom.h:113:1:
+	TIOCPKT_IOCTL        = 0x40       // ttycom.h:118:1:
+	TIOCPKT_NOSTOP       = 0x10       // ttycom.h:116:1:
+	TIOCPKT_START        = 0x08       // ttycom.h:115:1:
+	TIOCPKT_STOP         = 0x04       // ttycom.h:114:1:
+	TOSTOP               = 0x00400000 // _termios.h:175:1:
+	TTYDEF_CFLAG         = 19200      // ttydefaults.h:55:1:
+	TTYDEF_IFLAG         = 11010      // ttydefaults.h:49:1:
+	TTYDEF_LFLAG         = 1483       // ttydefaults.h:54:1:
+	TTYDEF_LFLAG_ECHO    = 1483       // ttydefaults.h:52:1:
+	TTYDEF_LFLAG_NOECHO  = 1408       // ttydefaults.h:51:1:
+	TTYDEF_OFLAG         = 3          // ttydefaults.h:50:1:
+	TTYDEF_SPEED         = 9600       // ttydefaults.h:56:1:
+	TTYDISC              = 0          // ttycom.h:131:1:
+	VDISCARD             = 15         // _termios.h:70:1:
+	VDSUSP               = 11         // _termios.h:64:1:
+	VEOF                 = 0          // _termios.h:45:1:
+	VEOL                 = 1          // _termios.h:46:1:
+	VEOL2                = 2          // _termios.h:48:1:
+	VERASE               = 3          // _termios.h:50:1:
+	VERASE2              = 7          // _termios.h:57:1:
+	VINTR                = 8          // _termios.h:60:1:
+	VKILL                = 5          // _termios.h:54:1:
+	VLNEXT               = 14         // _termios.h:69:1:
+	VMIN                 = 16         // _termios.h:72:1:
+	VQUIT                = 9          // _termios.h:61:1:
+	VREPRINT             = 6          // _termios.h:56:1:
+	VSTART               = 12         // _termios.h:66:1:
+	VSTATUS              = 18         // _termios.h:75:1:
+	VSTOP                = 13         // _termios.h:67:1:
+	VSUSP                = 10         // _termios.h:62:1:
+	VTIME                = 17         // _termios.h:73:1:
+	VWERASE              = 4          // _termios.h:52:1:
+	X_FILE_OFFSET_BITS   = 64         // <builtin>:25:1:
+	X_LP64               = 1          // <predefined>:1:1:
+	X_MACHINE__LIMITS_H_ = 0          // _limits.h:36:1:
+	X_MACHINE__TYPES_H_  = 0          // _types.h:42:1:
+	X_Nonnull            = 0          // cdefs.h:790:1:
+	X_Null_unspecified   = 0          // cdefs.h:792:1:
+	X_Nullable           = 0          // cdefs.h:791:1:
+	X_PID_T_DECLARED     = 0          // termios.h:47:1:
+	X_POSIX_VDISABLE     = 0xff       // _termios.h:80:1:
+	X_SYS_CDEFS_H_       = 0          // cdefs.h:39:1:
+	X_SYS_IOCCOM_H_      = 0          // ioccom.h:36:1:
+	X_SYS_TTYCOM_H_      = 0          // ttycom.h:41:1:
+	X_SYS_TTYDEFAULTS_H_ = 0          // ttydefaults.h:44:1:
+	X_SYS__TERMIOS_H_    = 0          // _termios.h:36:1:
+	X_SYS__TYPES_H_      = 0          // _types.h:32:1:
+	X_SYS__WINSIZE_H_    = 0          // _winsize.h:36:1:
+	X_TERMIOS_H_         = 0          // termios.h:36:1:
+	Unix                 = 1          // <predefined>:340:1:
+)
+
+type Ptrdiff_t = int64 /* <builtin>:3:26 */
+
+type Size_t = uint64 /* <builtin>:9:23 */
+
+type Wchar_t = int32 /* <builtin>:15:24 */
+
+type X__int128_t = struct {
+	Flo int64
+	Fhi int64
+} /* <builtin>:21:43 */ // must match modernc.org/mathutil.Int128
+type X__uint128_t = struct {
+	Flo uint64
+	Fhi uint64
+} /* <builtin>:22:44 */ // must match modernc.org/mathutil.Int128
+
+type X__builtin_va_list = uintptr /* <builtin>:46:14 */
+type X__float128 = float64        /* <builtin>:47:21 */
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1988, 1989, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)termios.h	8.3 (Berkeley) 3/28/94
+// $FreeBSD$
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1991, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// This code is derived from software contributed to Berkeley by
+// Berkeley Software Design, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)cdefs.h	8.8 (Berkeley) 1/9/95
+// $FreeBSD$
+
+// Testing against Clang-specific extensions.
+
+// This code has been put in place to help reduce the addition of
+// compiler specific defines in FreeBSD code.  It helps to aid in
+// having a compiler-agnostic source tree.
+
+// Compiler memory barriers, specific to gcc and clang.
+
+// XXX: if __GNUC__ >= 2: not tested everywhere originally, where replaced
+
+// Macro to test if we're using a specific version of gcc or later.
+
+// The __CONCAT macro is used to concatenate parts of symbol names, e.g.
+// with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
+// The __CONCAT macro is a bit tricky to use if it must work in non-ANSI
+// mode -- there must be no spaces between its arguments, and for nested
+// __CONCAT's, all the __CONCAT's must be at the left.  __CONCAT can also
+// concatenate double-quoted strings produced by the __STRING macro, but
+// this only works with ANSI C.
+//
+// __XSTRING is like __STRING, but it expands any macros in its argument
+// first.  It is only available with ANSI C.
+
+// Compiler-dependent macros to help declare dead (non-returning) and
+// pure (no side effects) functions, and unused variables.  They are
+// null except for versions of gcc that are known to support the features
+// properly (old versions of gcc-2 supported the dead and pure features
+// in a different (wrong) way).  If we do not provide an implementation
+// for a given compiler, let the compile fail if it is told to use
+// a feature that we cannot live without.
+
+// Keywords added in C11.
+
+// Emulation of C11 _Generic().  Unlike the previously defined C11
+// keywords, it is not possible to implement this using exactly the same
+// syntax.  Therefore implement something similar under the name
+// __generic().  Unlike _Generic(), this macro can only distinguish
+// between a single type, so it requires nested invocations to
+// distinguish multiple cases.
+
+// C99 Static array indices in function parameter declarations.  Syntax such as:
+// void bar(int myArray[static 10]);
+// is allowed in C99 but not in C++.  Define __min_size appropriately so
+// headers using it can be compiled in either language.  Use like this:
+// void bar(int myArray[__min_size(10)]);
+
+// XXX: should use `#if __STDC_VERSION__ < 199901'.
+
+// C++11 exposes a load of C99 stuff
+
+// GCC 2.95 provides `__restrict' as an extension to C90 to support the
+// C99-specific `restrict' type qualifier.  We happen to use `__restrict' as
+// a way to define the `restrict' type qualifier without disturbing older
+// software that is unaware of C99 keywords.
+
+// GNU C version 2.96 adds explicit branch prediction so that
+// the CPU back-end can hint the processor and also so that
+// code blocks can be reordered such that the predicted path
+// sees a more linear flow, thus improving cache behavior, etc.
+//
+// The following two macros provide us with a way to utilize this
+// compiler feature.  Use __predict_true() if you expect the expression
+// to evaluate to true, and __predict_false() if you expect the
+// expression to evaluate to false.
+//
+// A few notes about usage:
+//
+//	* Generally, __predict_false() error condition checks (unless
+//	  you have some _strong_ reason to do otherwise, in which case
+//	  document it), and/or __predict_true() `no-error' condition
+//	  checks, assuming you want to optimize for the no-error case.
+//
+//	* Other than that, if you don't know the likelihood of a test
+//	  succeeding from empirical or other `hard' evidence, don't
+//	  make predictions.
+//
+//	* These are meant to be used in places that are run `a lot'.
+//	  It is wasteful to make predictions in code that is run
+//	  seldomly (e.g. at subsystem initialization time) as the
+//	  basic block reordering that this affects can often generate
+//	  larger code.
+
+// We define this here since <stddef.h>, <sys/queue.h>, and <sys/types.h>
+// require it.
+
+// Given the pointer x to the member m of the struct s, return
+// a pointer to the containing structure.  When using GCC, we first
+// assign pointer x to a local variable, to check that its type is
+// compatible with member m.
+
+// Compiler-dependent macros to declare that functions take printf-like
+// or scanf-like arguments.  They are null except for versions of gcc
+// that are known to support the features properly (old versions of gcc-2
+// didn't permit keeping the keywords out of the application namespace).
+
+// Compiler-dependent macros that rely on FreeBSD-specific extensions.
+
+// Embed the rcs id of a source file in the resulting library.  Note that in
+// more recent ELF binutils, we use .ident allowing the ID to be stripped.
+// Usage:
+//	__FBSDID("$FreeBSD$");
+
+// -
+// The following definitions are an extension of the behavior originally
+// implemented in <sys/_posix.h>, but with a different level of granularity.
+// POSIX.1 requires that the macros we test be defined before any standard
+// header file is included.
+//
+// Here's a quick run-down of the versions:
+//  defined(_POSIX_SOURCE)		1003.1-1988
+//  _POSIX_C_SOURCE == 1		1003.1-1990
+//  _POSIX_C_SOURCE == 2		1003.2-1992 C Language Binding Option
+//  _POSIX_C_SOURCE == 199309		1003.1b-1993
+//  _POSIX_C_SOURCE == 199506		1003.1c-1995, 1003.1i-1995,
+//					and the omnibus ISO/IEC 9945-1: 1996
+//  _POSIX_C_SOURCE == 200112		1003.1-2001
+//  _POSIX_C_SOURCE == 200809		1003.1-2008
+//
+// In addition, the X/Open Portability Guide, which is now the Single UNIX
+// Specification, defines a feature-test macro which indicates the version of
+// that specification, and which subsumes _POSIX_C_SOURCE.
+//
+// Our macros begin with two underscores to avoid namespace screwage.
+
+// Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1.
+
+// Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2.
+
+// Deal with various X/Open Portability Guides and Single UNIX Spec.
+
+// Deal with all versions of POSIX.  The ordering relative to the tests above is
+// important.
+// -
+// Deal with _ANSI_SOURCE:
+// If it is defined, and no other compilation environment is explicitly
+// requested, then define our internal feature-test macros to zero.  This
+// makes no difference to the preprocessor (undefined symbols in preprocessing
+// expressions are defined to have value zero), but makes it more convenient for
+// a test program to print out the values.
+//
+// If a program mistakenly defines _ANSI_SOURCE and some other macro such as
+// _POSIX_C_SOURCE, we will assume that it wants the broader compilation
+// environment (and in fact we will never get here).
+
+// User override __EXT1_VISIBLE
+
+// Old versions of GCC use non-standard ARM arch symbols; acle-compat.h
+// translates them to __ARM_ARCH and the modern feature symbols defined by ARM.
+
+// Nullability qualifiers: currently only supported by Clang.
+
+// Type Safety Checking
+//
+// Clang provides additional attributes to enable checking type safety
+// properties that cannot be enforced by the C type system.
+
+// Lock annotations.
+//
+// Clang provides support for doing basic thread-safety tests at
+// compile-time, by marking which locks will/should be held when
+// entering/leaving a functions.
+//
+// Furthermore, it is also possible to annotate variables and structure
+// members to enforce that they are only accessed when certain locks are
+// held.
+
+// Structure implements a lock.
+
+// Function acquires an exclusive or shared lock.
+
+// Function attempts to acquire an exclusive or shared lock.
+
+// Function releases a lock.
+
+// Function asserts that an exclusive or shared lock is held.
+
+// Function requires that an exclusive or shared lock is or is not held.
+
+// Function should not be analyzed.
+
+// Function or variable should not be sanitized, e.g., by AddressSanitizer.
+// GCC has the nosanitize attribute, but as a function attribute only, and
+// warns on use as a variable attribute.
+
+// Guard variables and structure members by lock.
+
+// Alignment builtins for better type checking and improved code generation.
+// Provide fallback versions for other compilers (GCC/Clang < 10):
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1988, 1989, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)termios.h	8.3 (Berkeley) 3/28/94
+// $FreeBSD$
+
+// Special Control Characters
+//
+// Index into c_cc[] character array.
+//
+//	Name	     Subscript	Enabled by
+//			7	   ex-spare 1
+//			19	   spare 2
+
+// Input flags - software input processing
+
+// Output flags - software output processing
+
+// Control flags - hardware control of terminal
+
+// "Local" flags - dumping ground for other state
+//
+// Warning: some flags in this structure begin with
+// the letter "I" and look like they belong in the
+// input flag.
+
+// Standard speeds
+
+type Tcflag_t = uint32 /* _termios.h:224:22 */
+type Cc_t = uint8      /* _termios.h:225:23 */
+type Speed_t = uint32  /* _termios.h:226:22 */
+
+type Termios = struct {
+	Fc_iflag  Tcflag_t
+	Fc_oflag  Tcflag_t
+	Fc_cflag  Tcflag_t
+	Fc_lflag  Tcflag_t
+	Fc_cc     [20]Cc_t
+	Fc_ispeed Speed_t
+	Fc_ospeed Speed_t
+} /* _termios.h:228:1 */
+
+// -
+// SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+//
+// Copyright (c) 2002 Mike Barcroft <mike@FreeBSD.org>
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+// $FreeBSD$
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1991, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// This code is derived from software contributed to Berkeley by
+// Berkeley Software Design, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)cdefs.h	8.8 (Berkeley) 1/9/95
+// $FreeBSD$
+
+// -
+// This file is in the public domain.
+// $FreeBSD$
+
+// -
+// SPDX-License-Identifier: BSD-4-Clause
+//
+// Copyright (c) 2002 Mike Barcroft <mike@FreeBSD.org>
+// Copyright (c) 1990, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. All advertising materials mentioning features or use of this software
+//    must display the following acknowledgement:
+//	This product includes software developed by the University of
+//	California, Berkeley and its contributors.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	From: @(#)ansi.h	8.2 (Berkeley) 1/4/94
+//	From: @(#)types.h	8.3 (Berkeley) 1/5/94
+// $FreeBSD$
+
+// -
+// This file is in the public domain.
+// $FreeBSD$
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1988, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)limits.h	8.3 (Berkeley) 1/4/94
+// $FreeBSD$
+
+// According to ANSI (section 2.2.4.2), the values below must be usable by
+// #if preprocessing directives.  Additionally, the expression must have the
+// same type as would an expression that is an object of the corresponding
+// type converted according to the integral promotions.  The subtraction for
+// INT_MIN, etc., is so the value is not unsigned; e.g., 0x80000000 is an
+// unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
+
+// max value for an unsigned long long
+
+// Quads and longs are the same on the amd64.  Ensure they stay in sync.
+
+// Minimum signal stack size.
+
+// Basic types upon which most other types are built.
+type X__int8_t = int8     /* _types.h:55:22 */
+type X__uint8_t = uint8   /* _types.h:56:24 */
+type X__int16_t = int16   /* _types.h:57:17 */
+type X__uint16_t = uint16 /* _types.h:58:25 */
+type X__int32_t = int32   /* _types.h:59:15 */
+type X__uint32_t = uint32 /* _types.h:60:23 */
+type X__int64_t = int64   /* _types.h:62:16 */
+type X__uint64_t = uint64 /* _types.h:63:24 */
+
+// Standard type definitions.
+type X__clock_t = X__int32_t         /* _types.h:75:19 */ // clock()...
+type X__critical_t = X__int64_t      /* _types.h:76:19 */
+type X__double_t = float64           /* _types.h:78:17 */
+type X__float_t = float32            /* _types.h:79:16 */
+type X__intfptr_t = X__int64_t       /* _types.h:81:19 */
+type X__intptr_t = X__int64_t        /* _types.h:82:19 */
+type X__intmax_t = X__int64_t        /* _types.h:93:19 */
+type X__int_fast8_t = X__int32_t     /* _types.h:94:19 */
+type X__int_fast16_t = X__int32_t    /* _types.h:95:19 */
+type X__int_fast32_t = X__int32_t    /* _types.h:96:19 */
+type X__int_fast64_t = X__int64_t    /* _types.h:97:19 */
+type X__int_least8_t = X__int8_t     /* _types.h:98:18 */
+type X__int_least16_t = X__int16_t   /* _types.h:99:19 */
+type X__int_least32_t = X__int32_t   /* _types.h:100:19 */
+type X__int_least64_t = X__int64_t   /* _types.h:101:19 */
+type X__ptrdiff_t = X__int64_t       /* _types.h:103:19 */ // ptr1 - ptr2
+type X__register_t = X__int64_t      /* _types.h:104:19 */
+type X__segsz_t = X__int64_t         /* _types.h:105:19 */ // segment size (in pages)
+type X__size_t = X__uint64_t         /* _types.h:106:20 */ // sizeof()
+type X__ssize_t = X__int64_t         /* _types.h:107:19 */ // byte count or error
+type X__time_t = X__int64_t          /* _types.h:108:19 */ // time()...
+type X__uintfptr_t = X__uint64_t     /* _types.h:109:20 */
+type X__uintptr_t = X__uint64_t      /* _types.h:110:20 */
+type X__uintmax_t = X__uint64_t      /* _types.h:121:20 */
+type X__uint_fast8_t = X__uint32_t   /* _types.h:122:20 */
+type X__uint_fast16_t = X__uint32_t  /* _types.h:123:20 */
+type X__uint_fast32_t = X__uint32_t  /* _types.h:124:20 */
+type X__uint_fast64_t = X__uint64_t  /* _types.h:125:20 */
+type X__uint_least8_t = X__uint8_t   /* _types.h:126:19 */
+type X__uint_least16_t = X__uint16_t /* _types.h:127:20 */
+type X__uint_least32_t = X__uint32_t /* _types.h:128:20 */
+type X__uint_least64_t = X__uint64_t /* _types.h:129:20 */
+type X__u_register_t = X__uint64_t   /* _types.h:131:20 */
+type X__vm_offset_t = X__uint64_t    /* _types.h:132:20 */
+type X__vm_paddr_t = X__uint64_t     /* _types.h:133:20 */
+type X__vm_size_t = X__uint64_t      /* _types.h:134:20 */
+type X___wchar_t = int32             /* _types.h:141:14 */
+
+// Standard type definitions.
+type X__blksize_t = X__int32_t   /* _types.h:40:19 */ // file block size
+type X__blkcnt_t = X__int64_t    /* _types.h:41:19 */ // file block count
+type X__clockid_t = X__int32_t   /* _types.h:42:19 */ // clock_gettime()...
+type X__fflags_t = X__uint32_t   /* _types.h:43:20 */ // file flags
+type X__fsblkcnt_t = X__uint64_t /* _types.h:44:20 */
+type X__fsfilcnt_t = X__uint64_t /* _types.h:45:20 */
+type X__gid_t = X__uint32_t      /* _types.h:46:20 */
+type X__id_t = X__int64_t        /* _types.h:47:19 */ // can hold a gid_t, pid_t, or uid_t
+type X__ino_t = X__uint64_t      /* _types.h:48:20 */ // inode number
+type X__key_t = int64            /* _types.h:49:15 */ // IPC key (for Sys V IPC)
+type X__lwpid_t = X__int32_t     /* _types.h:50:19 */ // Thread ID (a.k.a. LWP)
+type X__mode_t = X__uint16_t     /* _types.h:51:20 */ // permissions
+type X__accmode_t = int32        /* _types.h:52:14 */ // access permissions
+type X__nl_item = int32          /* _types.h:53:14 */
+type X__nlink_t = X__uint64_t    /* _types.h:54:20 */ // link count
+type X__off_t = X__int64_t       /* _types.h:55:19 */ // file offset
+type X__off64_t = X__int64_t     /* _types.h:56:19 */ // file offset (alias)
+type X__pid_t = X__int32_t       /* _types.h:57:19 */ // process [group]
+type X__rlim_t = X__int64_t      /* _types.h:58:19 */ // resource limit - intentionally
+// signed, because of legacy code
+// that uses -1 for RLIM_INFINITY
+type X__sa_family_t = X__uint8_t /* _types.h:61:19 */
+type X__socklen_t = X__uint32_t  /* _types.h:62:20 */
+type X__suseconds_t = int64      /* _types.h:63:15 */ // microseconds (signed)
+type X__timer_t = uintptr        /* _types.h:64:24 */ // timer_gettime()...
+type X__mqd_t = uintptr          /* _types.h:65:21 */ // mq_open()...
+type X__uid_t = X__uint32_t      /* _types.h:66:20 */
+type X__useconds_t = uint32      /* _types.h:67:22 */ // microseconds (unsigned)
+type X__cpuwhich_t = int32       /* _types.h:68:14 */ // which parameter for cpuset.
+type X__cpulevel_t = int32       /* _types.h:69:14 */ // level parameter for cpuset.
+type X__cpusetid_t = int32       /* _types.h:70:14 */ // cpuset identifier.
+type X__daddr_t = X__int64_t     /* _types.h:71:19 */ // bwrite(3), FIOBMAP2, etc
+
+// Unusual type definitions.
+// rune_t is declared to be an “int” instead of the more natural
+// “unsigned long” or “long”.  Two things are happening here.  It is not
+// unsigned so that EOF (-1) can be naturally assigned to it and used.  Also,
+// it looks like 10646 will be a 31 bit standard.  This means that if your
+// ints cannot hold 32 bits, you will be in trouble.  The reason an int was
+// chosen over a long is that the is*() and to*() routines take ints (says
+// ANSI C), but they use __ct_rune_t instead of int.
+//
+// NOTE: rune_t is not covered by ANSI nor other standards, and should not
+// be instantiated outside of lib/libc/locale.  Use wchar_t.  wint_t and
+// rune_t must be the same type.  Also, wint_t should be able to hold all
+// members of the largest character set plus one extra value (WEOF), and
+// must be at least 16 bits.
+type X__ct_rune_t = int32     /* _types.h:91:14 */ // arg type for ctype funcs
+type X__rune_t = X__ct_rune_t /* _types.h:92:21 */ // rune_t (see above)
+type X__wint_t = X__ct_rune_t /* _types.h:93:21 */ // wint_t (see above)
+
+// Clang already provides these types as built-ins, but only in C++ mode.
+type X__char16_t = X__uint_least16_t /* _types.h:97:26 */
+type X__char32_t = X__uint_least32_t /* _types.h:98:26 */
+// In C++11, char16_t and char32_t are built-in types.
+
+type X__max_align_t = struct {
+	F__max_align1 int64
+	F__max_align2 float64
+} /* _types.h:111:3 */
+
+type X__dev_t = X__uint64_t /* _types.h:113:20 */ // device number
+
+type X__fixpt_t = X__uint32_t /* _types.h:115:20 */ // fixed point number
+
+// mbstate_t is an opaque object to keep conversion state during multibyte
+// stream conversions.
+type X__mbstate_t = struct {
+	F__ccgo_pad1 [0]uint64
+	F__mbstate8  [128]int8
+} /* _types.h:124:3 */
+
+type X__rman_res_t = X__uintmax_t /* _types.h:126:25 */
+
+// Types for varargs. These are all provided by builtin types these
+// days, so centralize their definition.
+type X__va_list = X__builtin_va_list /* _types.h:133:27 */ // internally known to gcc
+type X__gnuc_va_list = X__va_list    /* _types.h:140:20 */ // compatibility w/GNU headers
+
+// When the following macro is defined, the system uses 64-bit inode numbers.
+// Programs can use this to avoid including <sys/param.h>, with its associated
+// namespace pollution.
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1988, 1989, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttycom.h	8.1 (Berkeley) 3/28/94
+// $FreeBSD$
+
+// Window/terminal size structure.  This information is stored by the kernel
+// in order to provide a consistent interface, but is not used by the kernel.
+type Winsize = struct {
+	Fws_row    uint16
+	Fws_col    uint16
+	Fws_xpixel uint16
+	Fws_ypixel uint16
+} /* _winsize.h:42:1 */
+
+type Pid_t = X__pid_t /* termios.h:46:18 */
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1988, 1989, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttycom.h	8.1 (Berkeley) 3/28/94
+// $FreeBSD$
+
+// Tty ioctl's except for those supported only for backwards compatibility
+// with the old tty driver.
+
+// 0-2 compat
+// 3-7 unused
+// 8-10 compat
+// 11-12 unused
+// 17-18 compat
+// 23-25 unused
+// 29-85 unused
+// 88 unused
+// 89-91 conflicts: tun and tap
+// 92-93 tun and tap
+// 94-97 conflicts: tun and tap
+// 100 unused
+// 105 unused
+// 116-117 compat
+// 124-127 compat
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1982, 1986, 1993
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttydefaults.h	8.4 (Berkeley) 1/21/94
+// $FreeBSD$
+
+// System wide defaults for terminal state.
+
+// Defaults on "first" open.
+
+// Control Character Defaults
+// XXX: A lot of code uses lowercase characters, but control-character
+// conversion is actually only valid when applied to uppercase
+// characters. We just treat lowercase characters as if they were
+// inserted as uppercase.
+// compat
+
+// PROTECTED INCLUSION ENDS HERE
+
+// #define TTYDEFCHARS to include an array of default control characters.
+var _ int8 /* gen.c:2:13: */
diff --git a/vendor/modernc.org/libc/termios/termios_freebsd_arm.go b/vendor/modernc.org/libc/termios/termios_freebsd_arm.go
new file mode 100644
index 0000000..cc19569
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/termios_freebsd_arm.go
@@ -0,0 +1,951 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_freebsd_arm.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+import (
+	"math"
+	"reflect"
+	"sync/atomic"
+	"unsafe"
+)
+
+var _ = math.Pi
+var _ reflect.Kind
+var _ atomic.Value
+var _ unsafe.Pointer
+
+const (
+	ALTWERASE            = 0x00000200 // _termios.h:171:1:
+	B0                   = 0          // _termios.h:186:1:
+	B1000000             = 1000000    // _termios.h:213:1:
+	B110                 = 110        // _termios.h:189:1:
+	B115200              = 115200     // _termios.h:208:1:
+	B1200                = 1200       // _termios.h:195:1:
+	B134                 = 134        // _termios.h:190:1:
+	B14400               = 14400      // _termios.h:204:1:
+	B150                 = 150        // _termios.h:191:1:
+	B1500000             = 1500000    // _termios.h:214:1:
+	B1800                = 1800       // _termios.h:196:1:
+	B19200               = 19200      // _termios.h:200:1:
+	B200                 = 200        // _termios.h:192:1:
+	B2000000             = 2000000    // _termios.h:215:1:
+	B230400              = 230400     // _termios.h:209:1:
+	B2400                = 2400       // _termios.h:197:1:
+	B2500000             = 2500000    // _termios.h:216:1:
+	B28800               = 28800      // _termios.h:205:1:
+	B300                 = 300        // _termios.h:193:1:
+	B3000000             = 3000000    // _termios.h:217:1:
+	B3500000             = 3500000    // _termios.h:218:1:
+	B38400               = 38400      // _termios.h:201:1:
+	B4000000             = 4000000    // _termios.h:219:1:
+	B460800              = 460800     // _termios.h:210:1:
+	B4800                = 4800       // _termios.h:198:1:
+	B50                  = 50         // _termios.h:187:1:
+	B500000              = 500000     // _termios.h:211:1:
+	B57600               = 57600      // _termios.h:206:1:
+	B600                 = 600        // _termios.h:194:1:
+	B7200                = 7200       // _termios.h:203:1:
+	B75                  = 75         // _termios.h:188:1:
+	B76800               = 76800      // _termios.h:207:1:
+	B921600              = 921600     // _termios.h:212:1:
+	B9600                = 9600       // _termios.h:199:1:
+	BRKINT               = 0x00000002 // _termios.h:86:1:
+	CBRK                 = 255        // ttydefaults.h:89:1:
+	CCAR_OFLOW           = 0x00100000 // _termios.h:145:1:
+	CCTS_OFLOW           = 0x00010000 // _termios.h:140:1:
+	CDISCARD             = 15         // ttydefaults.h:84:1:
+	CDSR_OFLOW           = 0x00080000 // _termios.h:144:1:
+	CDSUSP               = 25         // ttydefaults.h:80:1:
+	CDTR_IFLOW           = 0x00040000 // _termios.h:143:1:
+	CEOF                 = 4          // ttydefaults.h:69:1:
+	CEOL                 = 0xff       // ttydefaults.h:70:1:
+	CEOT                 = 4          // ttydefaults.h:87:1:
+	CERASE               = 127        // ttydefaults.h:71:1:
+	CERASE2              = 8          // ttydefaults.h:72:1:
+	CFLUSH               = 15         // ttydefaults.h:91:1:
+	CIGNORE              = 0x00000001 // _termios.h:126:1:
+	CINTR                = 3          // ttydefaults.h:73:1:
+	CKILL                = 21         // ttydefaults.h:75:1:
+	CLNEXT               = 22         // ttydefaults.h:83:1:
+	CLOCAL               = 0x00008000 // _termios.h:138:1:
+	CMIN                 = 1          // ttydefaults.h:76:1:
+	CNO_RTSDTR           = 0x00200000 // _termios.h:146:1:
+	CQUIT                = 28         // ttydefaults.h:77:1:
+	CREAD                = 0x00000800 // _termios.h:134:1:
+	CREPRINT             = 18         // ttydefaults.h:86:1:
+	CRPRNT               = 18         // ttydefaults.h:90:1:
+	CRTSCTS              = 196608     // _termios.h:141:1:
+	CRTS_IFLOW           = 0x00020000 // _termios.h:142:1:
+	CS5                  = 0x00000000 // _termios.h:129:1:
+	CS6                  = 0x00000100 // _termios.h:130:1:
+	CS7                  = 0x00000200 // _termios.h:131:1:
+	CS8                  = 0x00000300 // _termios.h:132:1:
+	CSIZE                = 0x00000300 // _termios.h:128:1:
+	CSTART               = 17         // ttydefaults.h:81:1:
+	CSTATUS              = 20         // ttydefaults.h:74:1:
+	CSTOP                = 19         // ttydefaults.h:82:1:
+	CSTOPB               = 0x00000400 // _termios.h:133:1:
+	CSUSP                = 26         // ttydefaults.h:78:1:
+	CTIME                = 0          // ttydefaults.h:79:1:
+	CWERASE              = 23         // ttydefaults.h:85:1:
+	ECHO                 = 0x00000008 // _termios.h:162:1:
+	ECHOCTL              = 0x00000040 // _termios.h:166:1:
+	ECHOE                = 0x00000002 // _termios.h:160:1:
+	ECHOK                = 0x00000004 // _termios.h:161:1:
+	ECHOKE               = 0x00000001 // _termios.h:158:1:
+	ECHONL               = 0x00000010 // _termios.h:163:1:
+	ECHOPRT              = 0x00000020 // _termios.h:165:1:
+	EXTA                 = 19200      // _termios.h:220:1:
+	EXTB                 = 38400      // _termios.h:221:1:
+	EXTPROC              = 0x00000800 // _termios.h:174:1:
+	FLUSHO               = 0x00800000 // _termios.h:177:1:
+	H4DISC               = 7          // ttycom.h:135:1:
+	HUPCL                = 0x00004000 // _termios.h:137:1:
+	ICANON               = 0x00000100 // _termios.h:169:1:
+	ICRNL                = 0x00000100 // _termios.h:93:1:
+	IEXTEN               = 0x00000400 // _termios.h:173:1:
+	IGNBRK               = 0x00000001 // _termios.h:85:1:
+	IGNCR                = 0x00000080 // _termios.h:92:1:
+	IGNPAR               = 0x00000004 // _termios.h:87:1:
+	IMAXBEL              = 0x00002000 // _termios.h:100:1:
+	INLCR                = 0x00000040 // _termios.h:91:1:
+	INPCK                = 0x00000010 // _termios.h:89:1:
+	IOCPARM_MASK         = 8191       // ioccom.h:49:1:
+	IOCPARM_MAX          = 8192       // ioccom.h:54:1:
+	IOCPARM_SHIFT        = 13         // ioccom.h:48:1:
+	IOC_DIRMASK          = 3758096384 // ioccom.h:60:1:
+	IOC_IN               = 0x80000000 // ioccom.h:58:1:
+	IOC_INOUT            = 3221225472 // ioccom.h:59:1:
+	IOC_OUT              = 0x40000000 // ioccom.h:57:1:
+	IOC_VOID             = 0x20000000 // ioccom.h:56:1:
+	ISIG                 = 0x00000080 // _termios.h:168:1:
+	ISTRIP               = 0x00000020 // _termios.h:90:1:
+	IXANY                = 0x00000800 // _termios.h:97:1:
+	IXOFF                = 0x00000400 // _termios.h:95:1:
+	IXON                 = 0x00000200 // _termios.h:94:1:
+	MDMBUF               = 1048576    // termios.h:52:1:
+	NCCS                 = 20         // _termios.h:78:1:
+	NETGRAPHDISC         = 6          // ttycom.h:134:1:
+	NOFLSH               = 0x80000000 // _termios.h:181:1:
+	NOKERNINFO           = 0x02000000 // _termios.h:178:1:
+	OCRNL                = 0x00000010 // _termios.h:117:1:
+	ONLCR                = 0x00000002 // _termios.h:108:1:
+	ONLRET               = 0x00000040 // _termios.h:119:1:
+	ONOCR                = 0x00000020 // _termios.h:118:1:
+	ONOEOT               = 0x00000008 // _termios.h:114:1:
+	OPOST                = 0x00000001 // _termios.h:106:1:
+	OXTABS               = 4          // termios.h:51:1:
+	PARENB               = 0x00001000 // _termios.h:135:1:
+	PARMRK               = 0x00000008 // _termios.h:88:1:
+	PARODD               = 0x00002000 // _termios.h:136:1:
+	PENDIN               = 0x20000000 // _termios.h:179:1:
+	PPPDISC              = 5          // ttycom.h:133:1:
+	SLIPDISC             = 4          // ttycom.h:132:1:
+	TAB0                 = 0x00000000 // _termios.h:112:1:
+	TAB3                 = 0x00000004 // _termios.h:113:1:
+	TABDLY               = 0x00000004 // _termios.h:111:1:
+	TCIFLUSH             = 1          // termios.h:69:1:
+	TCIOFF               = 3          // termios.h:74:1:
+	TCIOFLUSH            = 3          // termios.h:71:1:
+	TCION                = 4          // termios.h:75:1:
+	TCOFLUSH             = 2          // termios.h:70:1:
+	TCOOFF               = 1          // termios.h:72:1:
+	TCOON                = 2          // termios.h:73:1:
+	TCSADRAIN            = 1          // termios.h:63:1:
+	TCSAFLUSH            = 2          // termios.h:64:1:
+	TCSANOW              = 0          // termios.h:62:1:
+	TCSASOFT             = 0x10       // termios.h:66:1:
+	TIOCM_CAR            = 64         // ttycom.h:103:1:
+	TIOCM_CD             = 64         // ttycom.h:102:1:
+	TIOCM_CTS            = 0040       // ttycom.h:98:1:
+	TIOCM_DCD            = 0100       // ttycom.h:99:1:
+	TIOCM_DSR            = 0400       // ttycom.h:101:1:
+	TIOCM_DTR            = 0002       // ttycom.h:94:1:
+	TIOCM_LE             = 0001       // ttycom.h:93:1:
+	TIOCM_RI             = 0200       // ttycom.h:100:1:
+	TIOCM_RNG            = 128        // ttycom.h:104:1:
+	TIOCM_RTS            = 0004       // ttycom.h:95:1:
+	TIOCM_SR             = 0020       // ttycom.h:97:1:
+	TIOCM_ST             = 0010       // ttycom.h:96:1:
+	TIOCPKT_DATA         = 0x00       // ttycom.h:111:1:
+	TIOCPKT_DOSTOP       = 0x20       // ttycom.h:117:1:
+	TIOCPKT_FLUSHREAD    = 0x01       // ttycom.h:112:1:
+	TIOCPKT_FLUSHWRITE   = 0x02       // ttycom.h:113:1:
+	TIOCPKT_IOCTL        = 0x40       // ttycom.h:118:1:
+	TIOCPKT_NOSTOP       = 0x10       // ttycom.h:116:1:
+	TIOCPKT_START        = 0x08       // ttycom.h:115:1:
+	TIOCPKT_STOP         = 0x04       // ttycom.h:114:1:
+	TOSTOP               = 0x00400000 // _termios.h:175:1:
+	TTYDEF_CFLAG         = 19200      // ttydefaults.h:55:1:
+	TTYDEF_IFLAG         = 11010      // ttydefaults.h:49:1:
+	TTYDEF_LFLAG         = 1483       // ttydefaults.h:54:1:
+	TTYDEF_LFLAG_ECHO    = 1483       // ttydefaults.h:52:1:
+	TTYDEF_LFLAG_NOECHO  = 1408       // ttydefaults.h:51:1:
+	TTYDEF_OFLAG         = 3          // ttydefaults.h:50:1:
+	TTYDEF_SPEED         = 9600       // ttydefaults.h:56:1:
+	TTYDISC              = 0          // ttycom.h:131:1:
+	VDISCARD             = 15         // _termios.h:70:1:
+	VDSUSP               = 11         // _termios.h:64:1:
+	VEOF                 = 0          // _termios.h:45:1:
+	VEOL                 = 1          // _termios.h:46:1:
+	VEOL2                = 2          // _termios.h:48:1:
+	VERASE               = 3          // _termios.h:50:1:
+	VERASE2              = 7          // _termios.h:57:1:
+	VINTR                = 8          // _termios.h:60:1:
+	VKILL                = 5          // _termios.h:54:1:
+	VLNEXT               = 14         // _termios.h:69:1:
+	VMIN                 = 16         // _termios.h:72:1:
+	VQUIT                = 9          // _termios.h:61:1:
+	VREPRINT             = 6          // _termios.h:56:1:
+	VSTART               = 12         // _termios.h:66:1:
+	VSTATUS              = 18         // _termios.h:75:1:
+	VSTOP                = 13         // _termios.h:67:1:
+	VSUSP                = 10         // _termios.h:62:1:
+	VTIME                = 17         // _termios.h:73:1:
+	VWERASE              = 4          // _termios.h:52:1:
+	X_FILE_OFFSET_BITS   = 64         // <builtin>:25:1:
+	X_ILP32              = 1          // <predefined>:1:1:
+	X_MACHINE__TYPES_H_  = 0          // _types.h:42:1:
+	X_Nonnull            = 0          // cdefs.h:790:1:
+	X_Null_unspecified   = 0          // cdefs.h:792:1:
+	X_Nullable           = 0          // cdefs.h:791:1:
+	X_PID_T_DECLARED     = 0          // termios.h:47:1:
+	X_POSIX_VDISABLE     = 0xff       // _termios.h:80:1:
+	X_SYS_CDEFS_H_       = 0          // cdefs.h:39:1:
+	X_SYS_IOCCOM_H_      = 0          // ioccom.h:36:1:
+	X_SYS_TTYCOM_H_      = 0          // ttycom.h:41:1:
+	X_SYS_TTYDEFAULTS_H_ = 0          // ttydefaults.h:44:1:
+	X_SYS__TERMIOS_H_    = 0          // _termios.h:36:1:
+	X_SYS__TYPES_H_      = 0          // _types.h:32:1:
+	X_SYS__WINSIZE_H_    = 0          // _winsize.h:36:1:
+	X_TERMIOS_H_         = 0          // termios.h:36:1:
+	Unix                 = 1          // <predefined>:367:1:
+)
+
+type Ptrdiff_t = int32 /* <builtin>:3:26 */
+
+type Size_t = uint32 /* <builtin>:9:23 */
+
+type Wchar_t = uint32 /* <builtin>:15:24 */
+
+type X__builtin_va_list = uintptr /* <builtin>:46:14 */
+type X__float128 = float64        /* <builtin>:47:21 */
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1988, 1989, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)termios.h	8.3 (Berkeley) 3/28/94
+// $FreeBSD$
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1991, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// This code is derived from software contributed to Berkeley by
+// Berkeley Software Design, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)cdefs.h	8.8 (Berkeley) 1/9/95
+// $FreeBSD$
+
+// Testing against Clang-specific extensions.
+
+// This code has been put in place to help reduce the addition of
+// compiler specific defines in FreeBSD code.  It helps to aid in
+// having a compiler-agnostic source tree.
+
+// Compiler memory barriers, specific to gcc and clang.
+
+// XXX: if __GNUC__ >= 2: not tested everywhere originally, where replaced
+
+// Macro to test if we're using a specific version of gcc or later.
+
+// The __CONCAT macro is used to concatenate parts of symbol names, e.g.
+// with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
+// The __CONCAT macro is a bit tricky to use if it must work in non-ANSI
+// mode -- there must be no spaces between its arguments, and for nested
+// __CONCAT's, all the __CONCAT's must be at the left.  __CONCAT can also
+// concatenate double-quoted strings produced by the __STRING macro, but
+// this only works with ANSI C.
+//
+// __XSTRING is like __STRING, but it expands any macros in its argument
+// first.  It is only available with ANSI C.
+
+// Compiler-dependent macros to help declare dead (non-returning) and
+// pure (no side effects) functions, and unused variables.  They are
+// null except for versions of gcc that are known to support the features
+// properly (old versions of gcc-2 supported the dead and pure features
+// in a different (wrong) way).  If we do not provide an implementation
+// for a given compiler, let the compile fail if it is told to use
+// a feature that we cannot live without.
+
+// Keywords added in C11.
+
+// Emulation of C11 _Generic().  Unlike the previously defined C11
+// keywords, it is not possible to implement this using exactly the same
+// syntax.  Therefore implement something similar under the name
+// __generic().  Unlike _Generic(), this macro can only distinguish
+// between a single type, so it requires nested invocations to
+// distinguish multiple cases.
+
+// C99 Static array indices in function parameter declarations.  Syntax such as:
+// void bar(int myArray[static 10]);
+// is allowed in C99 but not in C++.  Define __min_size appropriately so
+// headers using it can be compiled in either language.  Use like this:
+// void bar(int myArray[__min_size(10)]);
+
+// XXX: should use `#if __STDC_VERSION__ < 199901'.
+
+// C++11 exposes a load of C99 stuff
+
+// GCC 2.95 provides `__restrict' as an extension to C90 to support the
+// C99-specific `restrict' type qualifier.  We happen to use `__restrict' as
+// a way to define the `restrict' type qualifier without disturbing older
+// software that is unaware of C99 keywords.
+
+// GNU C version 2.96 adds explicit branch prediction so that
+// the CPU back-end can hint the processor and also so that
+// code blocks can be reordered such that the predicted path
+// sees a more linear flow, thus improving cache behavior, etc.
+//
+// The following two macros provide us with a way to utilize this
+// compiler feature.  Use __predict_true() if you expect the expression
+// to evaluate to true, and __predict_false() if you expect the
+// expression to evaluate to false.
+//
+// A few notes about usage:
+//
+//	* Generally, __predict_false() error condition checks (unless
+//	  you have some _strong_ reason to do otherwise, in which case
+//	  document it), and/or __predict_true() `no-error' condition
+//	  checks, assuming you want to optimize for the no-error case.
+//
+//	* Other than that, if you don't know the likelihood of a test
+//	  succeeding from empirical or other `hard' evidence, don't
+//	  make predictions.
+//
+//	* These are meant to be used in places that are run `a lot'.
+//	  It is wasteful to make predictions in code that is run
+//	  seldomly (e.g. at subsystem initialization time) as the
+//	  basic block reordering that this affects can often generate
+//	  larger code.
+
+// We define this here since <stddef.h>, <sys/queue.h>, and <sys/types.h>
+// require it.
+
+// Given the pointer x to the member m of the struct s, return
+// a pointer to the containing structure.  When using GCC, we first
+// assign pointer x to a local variable, to check that its type is
+// compatible with member m.
+
+// Compiler-dependent macros to declare that functions take printf-like
+// or scanf-like arguments.  They are null except for versions of gcc
+// that are known to support the features properly (old versions of gcc-2
+// didn't permit keeping the keywords out of the application namespace).
+
+// Compiler-dependent macros that rely on FreeBSD-specific extensions.
+
+// Embed the rcs id of a source file in the resulting library.  Note that in
+// more recent ELF binutils, we use .ident allowing the ID to be stripped.
+// Usage:
+//	__FBSDID("$FreeBSD$");
+
+// -
+// The following definitions are an extension of the behavior originally
+// implemented in <sys/_posix.h>, but with a different level of granularity.
+// POSIX.1 requires that the macros we test be defined before any standard
+// header file is included.
+//
+// Here's a quick run-down of the versions:
+//  defined(_POSIX_SOURCE)		1003.1-1988
+//  _POSIX_C_SOURCE == 1		1003.1-1990
+//  _POSIX_C_SOURCE == 2		1003.2-1992 C Language Binding Option
+//  _POSIX_C_SOURCE == 199309		1003.1b-1993
+//  _POSIX_C_SOURCE == 199506		1003.1c-1995, 1003.1i-1995,
+//					and the omnibus ISO/IEC 9945-1: 1996
+//  _POSIX_C_SOURCE == 200112		1003.1-2001
+//  _POSIX_C_SOURCE == 200809		1003.1-2008
+//
+// In addition, the X/Open Portability Guide, which is now the Single UNIX
+// Specification, defines a feature-test macro which indicates the version of
+// that specification, and which subsumes _POSIX_C_SOURCE.
+//
+// Our macros begin with two underscores to avoid namespace screwage.
+
+// Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1.
+
+// Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2.
+
+// Deal with various X/Open Portability Guides and Single UNIX Spec.
+
+// Deal with all versions of POSIX.  The ordering relative to the tests above is
+// important.
+// -
+// Deal with _ANSI_SOURCE:
+// If it is defined, and no other compilation environment is explicitly
+// requested, then define our internal feature-test macros to zero.  This
+// makes no difference to the preprocessor (undefined symbols in preprocessing
+// expressions are defined to have value zero), but makes it more convenient for
+// a test program to print out the values.
+//
+// If a program mistakenly defines _ANSI_SOURCE and some other macro such as
+// _POSIX_C_SOURCE, we will assume that it wants the broader compilation
+// environment (and in fact we will never get here).
+
+// User override __EXT1_VISIBLE
+
+// Old versions of GCC use non-standard ARM arch symbols; acle-compat.h
+// translates them to __ARM_ARCH and the modern feature symbols defined by ARM.
+
+// Nullability qualifiers: currently only supported by Clang.
+
+// Type Safety Checking
+//
+// Clang provides additional attributes to enable checking type safety
+// properties that cannot be enforced by the C type system.
+
+// Lock annotations.
+//
+// Clang provides support for doing basic thread-safety tests at
+// compile-time, by marking which locks will/should be held when
+// entering/leaving a functions.
+//
+// Furthermore, it is also possible to annotate variables and structure
+// members to enforce that they are only accessed when certain locks are
+// held.
+
+// Structure implements a lock.
+
+// Function acquires an exclusive or shared lock.
+
+// Function attempts to acquire an exclusive or shared lock.
+
+// Function releases a lock.
+
+// Function asserts that an exclusive or shared lock is held.
+
+// Function requires that an exclusive or shared lock is or is not held.
+
+// Function should not be analyzed.
+
+// Function or variable should not be sanitized, e.g., by AddressSanitizer.
+// GCC has the nosanitize attribute, but as a function attribute only, and
+// warns on use as a variable attribute.
+
+// Guard variables and structure members by lock.
+
+// Alignment builtins for better type checking and improved code generation.
+// Provide fallback versions for other compilers (GCC/Clang < 10):
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1988, 1989, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)termios.h	8.3 (Berkeley) 3/28/94
+// $FreeBSD$
+
+// Special Control Characters
+//
+// Index into c_cc[] character array.
+//
+//	Name	     Subscript	Enabled by
+//			7	   ex-spare 1
+//			19	   spare 2
+
+// Input flags - software input processing
+
+// Output flags - software output processing
+
+// Control flags - hardware control of terminal
+
+// "Local" flags - dumping ground for other state
+//
+// Warning: some flags in this structure begin with
+// the letter "I" and look like they belong in the
+// input flag.
+
+// Standard speeds
+
+type Tcflag_t = uint32 /* _termios.h:224:22 */
+type Cc_t = uint8      /* _termios.h:225:23 */
+type Speed_t = uint32  /* _termios.h:226:22 */
+
+type Termios = struct {
+	Fc_iflag  Tcflag_t
+	Fc_oflag  Tcflag_t
+	Fc_cflag  Tcflag_t
+	Fc_lflag  Tcflag_t
+	Fc_cc     [20]Cc_t
+	Fc_ispeed Speed_t
+	Fc_ospeed Speed_t
+} /* _termios.h:228:1 */
+
+// -
+// SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+//
+// Copyright (c) 2002 Mike Barcroft <mike@FreeBSD.org>
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+// $FreeBSD$
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1991, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// This code is derived from software contributed to Berkeley by
+// Berkeley Software Design, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)cdefs.h	8.8 (Berkeley) 1/9/95
+// $FreeBSD$
+
+// -
+// SPDX-License-Identifier: BSD-4-Clause
+//
+// Copyright (c) 2002 Mike Barcroft <mike@FreeBSD.org>
+// Copyright (c) 1990, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. All advertising materials mentioning features or use of this software
+//    must display the following acknowledgement:
+//	This product includes software developed by the University of
+//	California, Berkeley and its contributors.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	From: @(#)ansi.h	8.2 (Berkeley) 1/4/94
+//	From: @(#)types.h	8.3 (Berkeley) 1/5/94
+// $FreeBSD$
+
+// Basic types upon which most other types are built.
+type X__int8_t = int8     /* _types.h:51:22 */
+type X__uint8_t = uint8   /* _types.h:52:24 */
+type X__int16_t = int16   /* _types.h:53:17 */
+type X__uint16_t = uint16 /* _types.h:54:25 */
+type X__int32_t = int32   /* _types.h:55:15 */
+type X__uint32_t = uint32 /* _types.h:56:23 */
+
+// LONGLONG
+type X__int64_t = int64 /* _types.h:61:20 */
+
+// LONGLONG
+type X__uint64_t = uint64 /* _types.h:66:28 */
+
+// Standard type definitions.
+type X__clock_t = X__uint32_t        /* _types.h:71:20 */ // clock()...
+type X__critical_t = X__int32_t      /* _types.h:72:19 */
+type X__double_t = float64           /* _types.h:74:17 */
+type X__float_t = float32            /* _types.h:75:16 */
+type X__intfptr_t = X__int32_t       /* _types.h:77:19 */
+type X__intmax_t = X__int64_t        /* _types.h:78:19 */
+type X__intptr_t = X__int32_t        /* _types.h:79:19 */
+type X__int_fast8_t = X__int32_t     /* _types.h:80:19 */
+type X__int_fast16_t = X__int32_t    /* _types.h:81:19 */
+type X__int_fast32_t = X__int32_t    /* _types.h:82:19 */
+type X__int_fast64_t = X__int64_t    /* _types.h:83:19 */
+type X__int_least8_t = X__int8_t     /* _types.h:84:18 */
+type X__int_least16_t = X__int16_t   /* _types.h:85:19 */
+type X__int_least32_t = X__int32_t   /* _types.h:86:19 */
+type X__int_least64_t = X__int64_t   /* _types.h:87:19 */
+type X__ptrdiff_t = X__int32_t       /* _types.h:88:19 */ // ptr1 - ptr2
+type X__register_t = X__int32_t      /* _types.h:89:19 */
+type X__segsz_t = X__int32_t         /* _types.h:90:19 */ // segment size (in pages)
+type X__size_t = X__uint32_t         /* _types.h:91:20 */ // sizeof()
+type X__ssize_t = X__int32_t         /* _types.h:92:19 */ // byte count or error
+type X__time_t = X__int64_t          /* _types.h:93:19 */ // time()...
+type X__uintfptr_t = X__uint32_t     /* _types.h:94:20 */
+type X__uintmax_t = X__uint64_t      /* _types.h:95:20 */
+type X__uintptr_t = X__uint32_t      /* _types.h:96:20 */
+type X__uint_fast8_t = X__uint32_t   /* _types.h:97:20 */
+type X__uint_fast16_t = X__uint32_t  /* _types.h:98:20 */
+type X__uint_fast32_t = X__uint32_t  /* _types.h:99:20 */
+type X__uint_fast64_t = X__uint64_t  /* _types.h:100:20 */
+type X__uint_least8_t = X__uint8_t   /* _types.h:101:19 */
+type X__uint_least16_t = X__uint16_t /* _types.h:102:20 */
+type X__uint_least32_t = X__uint32_t /* _types.h:103:20 */
+type X__uint_least64_t = X__uint64_t /* _types.h:104:20 */
+type X__u_register_t = X__uint32_t   /* _types.h:105:20 */
+type X__vm_offset_t = X__uint32_t    /* _types.h:106:20 */
+type X__vm_paddr_t = X__uint32_t     /* _types.h:107:20 */
+type X__vm_size_t = X__uint32_t      /* _types.h:108:20 */
+
+type X___wchar_t = uint32 /* _types.h:110:22 */
+
+// Standard type definitions.
+type X__blksize_t = X__int32_t   /* _types.h:40:19 */ // file block size
+type X__blkcnt_t = X__int64_t    /* _types.h:41:19 */ // file block count
+type X__clockid_t = X__int32_t   /* _types.h:42:19 */ // clock_gettime()...
+type X__fflags_t = X__uint32_t   /* _types.h:43:20 */ // file flags
+type X__fsblkcnt_t = X__uint64_t /* _types.h:44:20 */
+type X__fsfilcnt_t = X__uint64_t /* _types.h:45:20 */
+type X__gid_t = X__uint32_t      /* _types.h:46:20 */
+type X__id_t = X__int64_t        /* _types.h:47:19 */ // can hold a gid_t, pid_t, or uid_t
+type X__ino_t = X__uint64_t      /* _types.h:48:20 */ // inode number
+type X__key_t = int32            /* _types.h:49:15 */ // IPC key (for Sys V IPC)
+type X__lwpid_t = X__int32_t     /* _types.h:50:19 */ // Thread ID (a.k.a. LWP)
+type X__mode_t = X__uint16_t     /* _types.h:51:20 */ // permissions
+type X__accmode_t = int32        /* _types.h:52:14 */ // access permissions
+type X__nl_item = int32          /* _types.h:53:14 */
+type X__nlink_t = X__uint64_t    /* _types.h:54:20 */ // link count
+type X__off_t = X__int64_t       /* _types.h:55:19 */ // file offset
+type X__off64_t = X__int64_t     /* _types.h:56:19 */ // file offset (alias)
+type X__pid_t = X__int32_t       /* _types.h:57:19 */ // process [group]
+type X__rlim_t = X__int64_t      /* _types.h:58:19 */ // resource limit - intentionally
+// signed, because of legacy code
+// that uses -1 for RLIM_INFINITY
+type X__sa_family_t = X__uint8_t /* _types.h:61:19 */
+type X__socklen_t = X__uint32_t  /* _types.h:62:20 */
+type X__suseconds_t = int32      /* _types.h:63:15 */ // microseconds (signed)
+type X__timer_t = uintptr        /* _types.h:64:24 */ // timer_gettime()...
+type X__mqd_t = uintptr          /* _types.h:65:21 */ // mq_open()...
+type X__uid_t = X__uint32_t      /* _types.h:66:20 */
+type X__useconds_t = uint32      /* _types.h:67:22 */ // microseconds (unsigned)
+type X__cpuwhich_t = int32       /* _types.h:68:14 */ // which parameter for cpuset.
+type X__cpulevel_t = int32       /* _types.h:69:14 */ // level parameter for cpuset.
+type X__cpusetid_t = int32       /* _types.h:70:14 */ // cpuset identifier.
+type X__daddr_t = X__int64_t     /* _types.h:71:19 */ // bwrite(3), FIOBMAP2, etc
+
+// Unusual type definitions.
+// rune_t is declared to be an “int” instead of the more natural
+// “unsigned long” or “long”.  Two things are happening here.  It is not
+// unsigned so that EOF (-1) can be naturally assigned to it and used.  Also,
+// it looks like 10646 will be a 31 bit standard.  This means that if your
+// ints cannot hold 32 bits, you will be in trouble.  The reason an int was
+// chosen over a long is that the is*() and to*() routines take ints (says
+// ANSI C), but they use __ct_rune_t instead of int.
+//
+// NOTE: rune_t is not covered by ANSI nor other standards, and should not
+// be instantiated outside of lib/libc/locale.  Use wchar_t.  wint_t and
+// rune_t must be the same type.  Also, wint_t should be able to hold all
+// members of the largest character set plus one extra value (WEOF), and
+// must be at least 16 bits.
+type X__ct_rune_t = int32     /* _types.h:91:14 */ // arg type for ctype funcs
+type X__rune_t = X__ct_rune_t /* _types.h:92:21 */ // rune_t (see above)
+type X__wint_t = X__ct_rune_t /* _types.h:93:21 */ // wint_t (see above)
+
+// Clang already provides these types as built-ins, but only in C++ mode.
+type X__char16_t = X__uint_least16_t /* _types.h:97:26 */
+type X__char32_t = X__uint_least32_t /* _types.h:98:26 */
+// In C++11, char16_t and char32_t are built-in types.
+
+type X__max_align_t = struct {
+	F__max_align1 int64
+	F__max_align2 float64
+} /* _types.h:111:3 */
+
+type X__dev_t = X__uint64_t /* _types.h:113:20 */ // device number
+
+type X__fixpt_t = X__uint32_t /* _types.h:115:20 */ // fixed point number
+
+// mbstate_t is an opaque object to keep conversion state during multibyte
+// stream conversions.
+type X__mbstate_t = struct {
+	F__ccgo_pad1 [0]uint64
+	F__mbstate8  [128]uint8
+} /* _types.h:124:3 */
+
+type X__rman_res_t = X__uintmax_t /* _types.h:126:25 */
+
+// Types for varargs. These are all provided by builtin types these
+// days, so centralize their definition.
+type X__va_list = X__builtin_va_list /* _types.h:133:27 */ // internally known to gcc
+type X__gnuc_va_list = X__va_list    /* _types.h:140:20 */ // compatibility w/GNU headers
+
+// When the following macro is defined, the system uses 64-bit inode numbers.
+// Programs can use this to avoid including <sys/param.h>, with its associated
+// namespace pollution.
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1988, 1989, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttycom.h	8.1 (Berkeley) 3/28/94
+// $FreeBSD$
+
+// Window/terminal size structure.  This information is stored by the kernel
+// in order to provide a consistent interface, but is not used by the kernel.
+type Winsize = struct {
+	Fws_row    uint16
+	Fws_col    uint16
+	Fws_xpixel uint16
+	Fws_ypixel uint16
+} /* _winsize.h:42:1 */
+
+type Pid_t = X__pid_t /* termios.h:46:18 */
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1988, 1989, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttycom.h	8.1 (Berkeley) 3/28/94
+// $FreeBSD$
+
+// Tty ioctl's except for those supported only for backwards compatibility
+// with the old tty driver.
+
+// 0-2 compat
+// 3-7 unused
+// 8-10 compat
+// 11-12 unused
+// 17-18 compat
+// 23-25 unused
+// 29-85 unused
+// 88 unused
+// 89-91 conflicts: tun and tap
+// 92-93 tun and tap
+// 94-97 conflicts: tun and tap
+// 100 unused
+// 105 unused
+// 116-117 compat
+// 124-127 compat
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1982, 1986, 1993
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttydefaults.h	8.4 (Berkeley) 1/21/94
+// $FreeBSD$
+
+// System wide defaults for terminal state.
+
+// Defaults on "first" open.
+
+// Control Character Defaults
+// XXX: A lot of code uses lowercase characters, but control-character
+// conversion is actually only valid when applied to uppercase
+// characters. We just treat lowercase characters as if they were
+// inserted as uppercase.
+// compat
+
+// PROTECTED INCLUSION ENDS HERE
+
+// #define TTYDEFCHARS to include an array of default control characters.
+var _ uint8 /* gen.c:2:13: */
diff --git a/vendor/modernc.org/libc/termios/termios_freebsd_arm64.go b/vendor/modernc.org/libc/termios/termios_freebsd_arm64.go
new file mode 100644
index 0000000..96ebf0b
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/termios_freebsd_arm64.go
@@ -0,0 +1,1010 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_freebsd_amd64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+import (
+	"math"
+	"reflect"
+	"sync/atomic"
+	"unsafe"
+)
+
+var _ = math.Pi
+var _ reflect.Kind
+var _ atomic.Value
+var _ unsafe.Pointer
+
+const (
+	ALTWERASE            = 0x00000200 // _termios.h:171:1:
+	B0                   = 0          // _termios.h:186:1:
+	B1000000             = 1000000    // _termios.h:213:1:
+	B110                 = 110        // _termios.h:189:1:
+	B115200              = 115200     // _termios.h:208:1:
+	B1200                = 1200       // _termios.h:195:1:
+	B134                 = 134        // _termios.h:190:1:
+	B14400               = 14400      // _termios.h:204:1:
+	B150                 = 150        // _termios.h:191:1:
+	B1500000             = 1500000    // _termios.h:214:1:
+	B1800                = 1800       // _termios.h:196:1:
+	B19200               = 19200      // _termios.h:200:1:
+	B200                 = 200        // _termios.h:192:1:
+	B2000000             = 2000000    // _termios.h:215:1:
+	B230400              = 230400     // _termios.h:209:1:
+	B2400                = 2400       // _termios.h:197:1:
+	B2500000             = 2500000    // _termios.h:216:1:
+	B28800               = 28800      // _termios.h:205:1:
+	B300                 = 300        // _termios.h:193:1:
+	B3000000             = 3000000    // _termios.h:217:1:
+	B3500000             = 3500000    // _termios.h:218:1:
+	B38400               = 38400      // _termios.h:201:1:
+	B4000000             = 4000000    // _termios.h:219:1:
+	B460800              = 460800     // _termios.h:210:1:
+	B4800                = 4800       // _termios.h:198:1:
+	B50                  = 50         // _termios.h:187:1:
+	B500000              = 500000     // _termios.h:211:1:
+	B57600               = 57600      // _termios.h:206:1:
+	B600                 = 600        // _termios.h:194:1:
+	B7200                = 7200       // _termios.h:203:1:
+	B75                  = 75         // _termios.h:188:1:
+	B76800               = 76800      // _termios.h:207:1:
+	B921600              = 921600     // _termios.h:212:1:
+	B9600                = 9600       // _termios.h:199:1:
+	BRKINT               = 0x00000002 // _termios.h:86:1:
+	CBRK                 = 255        // ttydefaults.h:89:1:
+	CCAR_OFLOW           = 0x00100000 // _termios.h:145:1:
+	CCTS_OFLOW           = 0x00010000 // _termios.h:140:1:
+	CDISCARD             = 15         // ttydefaults.h:84:1:
+	CDSR_OFLOW           = 0x00080000 // _termios.h:144:1:
+	CDSUSP               = 25         // ttydefaults.h:80:1:
+	CDTR_IFLOW           = 0x00040000 // _termios.h:143:1:
+	CEOF                 = 4          // ttydefaults.h:69:1:
+	CEOL                 = 0xff       // ttydefaults.h:70:1:
+	CEOT                 = 4          // ttydefaults.h:87:1:
+	CERASE               = 127        // ttydefaults.h:71:1:
+	CERASE2              = 8          // ttydefaults.h:72:1:
+	CFLUSH               = 15         // ttydefaults.h:91:1:
+	CIGNORE              = 0x00000001 // _termios.h:126:1:
+	CINTR                = 3          // ttydefaults.h:73:1:
+	CKILL                = 21         // ttydefaults.h:75:1:
+	CLNEXT               = 22         // ttydefaults.h:83:1:
+	CLOCAL               = 0x00008000 // _termios.h:138:1:
+	CMIN                 = 1          // ttydefaults.h:76:1:
+	CNO_RTSDTR           = 0x00200000 // _termios.h:146:1:
+	CQUIT                = 28         // ttydefaults.h:77:1:
+	CREAD                = 0x00000800 // _termios.h:134:1:
+	CREPRINT             = 18         // ttydefaults.h:86:1:
+	CRPRNT               = 18         // ttydefaults.h:90:1:
+	CRTSCTS              = 196608     // _termios.h:141:1:
+	CRTS_IFLOW           = 0x00020000 // _termios.h:142:1:
+	CS5                  = 0x00000000 // _termios.h:129:1:
+	CS6                  = 0x00000100 // _termios.h:130:1:
+	CS7                  = 0x00000200 // _termios.h:131:1:
+	CS8                  = 0x00000300 // _termios.h:132:1:
+	CSIZE                = 0x00000300 // _termios.h:128:1:
+	CSTART               = 17         // ttydefaults.h:81:1:
+	CSTATUS              = 20         // ttydefaults.h:74:1:
+	CSTOP                = 19         // ttydefaults.h:82:1:
+	CSTOPB               = 0x00000400 // _termios.h:133:1:
+	CSUSP                = 26         // ttydefaults.h:78:1:
+	CTIME                = 0          // ttydefaults.h:79:1:
+	CWERASE              = 23         // ttydefaults.h:85:1:
+	ECHO                 = 0x00000008 // _termios.h:162:1:
+	ECHOCTL              = 0x00000040 // _termios.h:166:1:
+	ECHOE                = 0x00000002 // _termios.h:160:1:
+	ECHOK                = 0x00000004 // _termios.h:161:1:
+	ECHOKE               = 0x00000001 // _termios.h:158:1:
+	ECHONL               = 0x00000010 // _termios.h:163:1:
+	ECHOPRT              = 0x00000020 // _termios.h:165:1:
+	EXTA                 = 19200      // _termios.h:220:1:
+	EXTB                 = 38400      // _termios.h:221:1:
+	EXTPROC              = 0x00000800 // _termios.h:174:1:
+	FLUSHO               = 0x00800000 // _termios.h:177:1:
+	H4DISC               = 7          // ttycom.h:135:1:
+	HUPCL                = 0x00004000 // _termios.h:137:1:
+	ICANON               = 0x00000100 // _termios.h:169:1:
+	ICRNL                = 0x00000100 // _termios.h:93:1:
+	IEXTEN               = 0x00000400 // _termios.h:173:1:
+	IGNBRK               = 0x00000001 // _termios.h:85:1:
+	IGNCR                = 0x00000080 // _termios.h:92:1:
+	IGNPAR               = 0x00000004 // _termios.h:87:1:
+	IMAXBEL              = 0x00002000 // _termios.h:100:1:
+	INLCR                = 0x00000040 // _termios.h:91:1:
+	INPCK                = 0x00000010 // _termios.h:89:1:
+	IOCPARM_MASK         = 8191       // ioccom.h:49:1:
+	IOCPARM_MAX          = 8192       // ioccom.h:54:1:
+	IOCPARM_SHIFT        = 13         // ioccom.h:48:1:
+	IOC_DIRMASK          = 3758096384 // ioccom.h:60:1:
+	IOC_IN               = 0x80000000 // ioccom.h:58:1:
+	IOC_INOUT            = 3221225472 // ioccom.h:59:1:
+	IOC_OUT              = 0x40000000 // ioccom.h:57:1:
+	IOC_VOID             = 0x20000000 // ioccom.h:56:1:
+	ISIG                 = 0x00000080 // _termios.h:168:1:
+	ISTRIP               = 0x00000020 // _termios.h:90:1:
+	IXANY                = 0x00000800 // _termios.h:97:1:
+	IXOFF                = 0x00000400 // _termios.h:95:1:
+	IXON                 = 0x00000200 // _termios.h:94:1:
+	MDMBUF               = 1048576    // termios.h:52:1:
+	NCCS                 = 20         // _termios.h:78:1:
+	NETGRAPHDISC         = 6          // ttycom.h:134:1:
+	NOFLSH               = 0x80000000 // _termios.h:181:1:
+	NOKERNINFO           = 0x02000000 // _termios.h:178:1:
+	OCRNL                = 0x00000010 // _termios.h:117:1:
+	ONLCR                = 0x00000002 // _termios.h:108:1:
+	ONLRET               = 0x00000040 // _termios.h:119:1:
+	ONOCR                = 0x00000020 // _termios.h:118:1:
+	ONOEOT               = 0x00000008 // _termios.h:114:1:
+	OPOST                = 0x00000001 // _termios.h:106:1:
+	OXTABS               = 4          // termios.h:51:1:
+	PARENB               = 0x00001000 // _termios.h:135:1:
+	PARMRK               = 0x00000008 // _termios.h:88:1:
+	PARODD               = 0x00002000 // _termios.h:136:1:
+	PENDIN               = 0x20000000 // _termios.h:179:1:
+	PPPDISC              = 5          // ttycom.h:133:1:
+	SLIPDISC             = 4          // ttycom.h:132:1:
+	TAB0                 = 0x00000000 // _termios.h:112:1:
+	TAB3                 = 0x00000004 // _termios.h:113:1:
+	TABDLY               = 0x00000004 // _termios.h:111:1:
+	TCIFLUSH             = 1          // termios.h:69:1:
+	TCIOFF               = 3          // termios.h:74:1:
+	TCIOFLUSH            = 3          // termios.h:71:1:
+	TCION                = 4          // termios.h:75:1:
+	TCOFLUSH             = 2          // termios.h:70:1:
+	TCOOFF               = 1          // termios.h:72:1:
+	TCOON                = 2          // termios.h:73:1:
+	TCSADRAIN            = 1          // termios.h:63:1:
+	TCSAFLUSH            = 2          // termios.h:64:1:
+	TCSANOW              = 0          // termios.h:62:1:
+	TCSASOFT             = 0x10       // termios.h:66:1:
+	TIOCM_CAR            = 64         // ttycom.h:103:1:
+	TIOCM_CD             = 64         // ttycom.h:102:1:
+	TIOCM_CTS            = 0040       // ttycom.h:98:1:
+	TIOCM_DCD            = 0100       // ttycom.h:99:1:
+	TIOCM_DSR            = 0400       // ttycom.h:101:1:
+	TIOCM_DTR            = 0002       // ttycom.h:94:1:
+	TIOCM_LE             = 0001       // ttycom.h:93:1:
+	TIOCM_RI             = 0200       // ttycom.h:100:1:
+	TIOCM_RNG            = 128        // ttycom.h:104:1:
+	TIOCM_RTS            = 0004       // ttycom.h:95:1:
+	TIOCM_SR             = 0020       // ttycom.h:97:1:
+	TIOCM_ST             = 0010       // ttycom.h:96:1:
+	TIOCPKT_DATA         = 0x00       // ttycom.h:111:1:
+	TIOCPKT_DOSTOP       = 0x20       // ttycom.h:117:1:
+	TIOCPKT_FLUSHREAD    = 0x01       // ttycom.h:112:1:
+	TIOCPKT_FLUSHWRITE   = 0x02       // ttycom.h:113:1:
+	TIOCPKT_IOCTL        = 0x40       // ttycom.h:118:1:
+	TIOCPKT_NOSTOP       = 0x10       // ttycom.h:116:1:
+	TIOCPKT_START        = 0x08       // ttycom.h:115:1:
+	TIOCPKT_STOP         = 0x04       // ttycom.h:114:1:
+	TOSTOP               = 0x00400000 // _termios.h:175:1:
+	TTYDEF_CFLAG         = 19200      // ttydefaults.h:55:1:
+	TTYDEF_IFLAG         = 11010      // ttydefaults.h:49:1:
+	TTYDEF_LFLAG         = 1483       // ttydefaults.h:54:1:
+	TTYDEF_LFLAG_ECHO    = 1483       // ttydefaults.h:52:1:
+	TTYDEF_LFLAG_NOECHO  = 1408       // ttydefaults.h:51:1:
+	TTYDEF_OFLAG         = 3          // ttydefaults.h:50:1:
+	TTYDEF_SPEED         = 9600       // ttydefaults.h:56:1:
+	TTYDISC              = 0          // ttycom.h:131:1:
+	VDISCARD             = 15         // _termios.h:70:1:
+	VDSUSP               = 11         // _termios.h:64:1:
+	VEOF                 = 0          // _termios.h:45:1:
+	VEOL                 = 1          // _termios.h:46:1:
+	VEOL2                = 2          // _termios.h:48:1:
+	VERASE               = 3          // _termios.h:50:1:
+	VERASE2              = 7          // _termios.h:57:1:
+	VINTR                = 8          // _termios.h:60:1:
+	VKILL                = 5          // _termios.h:54:1:
+	VLNEXT               = 14         // _termios.h:69:1:
+	VMIN                 = 16         // _termios.h:72:1:
+	VQUIT                = 9          // _termios.h:61:1:
+	VREPRINT             = 6          // _termios.h:56:1:
+	VSTART               = 12         // _termios.h:66:1:
+	VSTATUS              = 18         // _termios.h:75:1:
+	VSTOP                = 13         // _termios.h:67:1:
+	VSUSP                = 10         // _termios.h:62:1:
+	VTIME                = 17         // _termios.h:73:1:
+	VWERASE              = 4          // _termios.h:52:1:
+	X_FILE_OFFSET_BITS   = 64         // <builtin>:25:1:
+	X_LP64               = 1          // <predefined>:1:1:
+	X_MACHINE__LIMITS_H_ = 0          // _limits.h:36:1:
+	X_MACHINE__TYPES_H_  = 0          // _types.h:42:1:
+	X_Nonnull            = 0          // cdefs.h:790:1:
+	X_Null_unspecified   = 0          // cdefs.h:792:1:
+	X_Nullable           = 0          // cdefs.h:791:1:
+	X_PID_T_DECLARED     = 0          // termios.h:47:1:
+	X_POSIX_VDISABLE     = 0xff       // _termios.h:80:1:
+	X_SYS_CDEFS_H_       = 0          // cdefs.h:39:1:
+	X_SYS_IOCCOM_H_      = 0          // ioccom.h:36:1:
+	X_SYS_TTYCOM_H_      = 0          // ttycom.h:41:1:
+	X_SYS_TTYDEFAULTS_H_ = 0          // ttydefaults.h:44:1:
+	X_SYS__TERMIOS_H_    = 0          // _termios.h:36:1:
+	X_SYS__TYPES_H_      = 0          // _types.h:32:1:
+	X_SYS__WINSIZE_H_    = 0          // _winsize.h:36:1:
+	X_TERMIOS_H_         = 0          // termios.h:36:1:
+	Unix                 = 1          // <predefined>:340:1:
+)
+
+type Ptrdiff_t = int64 /* <builtin>:3:26 */
+
+type Size_t = uint64 /* <builtin>:9:23 */
+
+type Wchar_t = int32 /* <builtin>:15:24 */
+
+type X__int128_t = struct {
+	Flo int64
+	Fhi int64
+} /* <builtin>:21:43 */ // must match modernc.org/mathutil.Int128
+type X__uint128_t = struct {
+	Flo uint64
+	Fhi uint64
+} /* <builtin>:22:44 */ // must match modernc.org/mathutil.Int128
+
+type X__builtin_va_list = uintptr /* <builtin>:46:14 */
+type X__float128 = float64        /* <builtin>:47:21 */
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1988, 1989, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)termios.h	8.3 (Berkeley) 3/28/94
+// $FreeBSD$
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1991, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// This code is derived from software contributed to Berkeley by
+// Berkeley Software Design, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)cdefs.h	8.8 (Berkeley) 1/9/95
+// $FreeBSD$
+
+// Testing against Clang-specific extensions.
+
+// This code has been put in place to help reduce the addition of
+// compiler specific defines in FreeBSD code.  It helps to aid in
+// having a compiler-agnostic source tree.
+
+// Compiler memory barriers, specific to gcc and clang.
+
+// XXX: if __GNUC__ >= 2: not tested everywhere originally, where replaced
+
+// Macro to test if we're using a specific version of gcc or later.
+
+// The __CONCAT macro is used to concatenate parts of symbol names, e.g.
+// with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
+// The __CONCAT macro is a bit tricky to use if it must work in non-ANSI
+// mode -- there must be no spaces between its arguments, and for nested
+// __CONCAT's, all the __CONCAT's must be at the left.  __CONCAT can also
+// concatenate double-quoted strings produced by the __STRING macro, but
+// this only works with ANSI C.
+//
+// __XSTRING is like __STRING, but it expands any macros in its argument
+// first.  It is only available with ANSI C.
+
+// Compiler-dependent macros to help declare dead (non-returning) and
+// pure (no side effects) functions, and unused variables.  They are
+// null except for versions of gcc that are known to support the features
+// properly (old versions of gcc-2 supported the dead and pure features
+// in a different (wrong) way).  If we do not provide an implementation
+// for a given compiler, let the compile fail if it is told to use
+// a feature that we cannot live without.
+
+// Keywords added in C11.
+
+// Emulation of C11 _Generic().  Unlike the previously defined C11
+// keywords, it is not possible to implement this using exactly the same
+// syntax.  Therefore implement something similar under the name
+// __generic().  Unlike _Generic(), this macro can only distinguish
+// between a single type, so it requires nested invocations to
+// distinguish multiple cases.
+
+// C99 Static array indices in function parameter declarations.  Syntax such as:
+// void bar(int myArray[static 10]);
+// is allowed in C99 but not in C++.  Define __min_size appropriately so
+// headers using it can be compiled in either language.  Use like this:
+// void bar(int myArray[__min_size(10)]);
+
+// XXX: should use `#if __STDC_VERSION__ < 199901'.
+
+// C++11 exposes a load of C99 stuff
+
+// GCC 2.95 provides `__restrict' as an extension to C90 to support the
+// C99-specific `restrict' type qualifier.  We happen to use `__restrict' as
+// a way to define the `restrict' type qualifier without disturbing older
+// software that is unaware of C99 keywords.
+
+// GNU C version 2.96 adds explicit branch prediction so that
+// the CPU back-end can hint the processor and also so that
+// code blocks can be reordered such that the predicted path
+// sees a more linear flow, thus improving cache behavior, etc.
+//
+// The following two macros provide us with a way to utilize this
+// compiler feature.  Use __predict_true() if you expect the expression
+// to evaluate to true, and __predict_false() if you expect the
+// expression to evaluate to false.
+//
+// A few notes about usage:
+//
+//	* Generally, __predict_false() error condition checks (unless
+//	  you have some _strong_ reason to do otherwise, in which case
+//	  document it), and/or __predict_true() `no-error' condition
+//	  checks, assuming you want to optimize for the no-error case.
+//
+//	* Other than that, if you don't know the likelihood of a test
+//	  succeeding from empirical or other `hard' evidence, don't
+//	  make predictions.
+//
+//	* These are meant to be used in places that are run `a lot'.
+//	  It is wasteful to make predictions in code that is run
+//	  seldomly (e.g. at subsystem initialization time) as the
+//	  basic block reordering that this affects can often generate
+//	  larger code.
+
+// We define this here since <stddef.h>, <sys/queue.h>, and <sys/types.h>
+// require it.
+
+// Given the pointer x to the member m of the struct s, return
+// a pointer to the containing structure.  When using GCC, we first
+// assign pointer x to a local variable, to check that its type is
+// compatible with member m.
+
+// Compiler-dependent macros to declare that functions take printf-like
+// or scanf-like arguments.  They are null except for versions of gcc
+// that are known to support the features properly (old versions of gcc-2
+// didn't permit keeping the keywords out of the application namespace).
+
+// Compiler-dependent macros that rely on FreeBSD-specific extensions.
+
+// Embed the rcs id of a source file in the resulting library.  Note that in
+// more recent ELF binutils, we use .ident allowing the ID to be stripped.
+// Usage:
+//	__FBSDID("$FreeBSD$");
+
+// -
+// The following definitions are an extension of the behavior originally
+// implemented in <sys/_posix.h>, but with a different level of granularity.
+// POSIX.1 requires that the macros we test be defined before any standard
+// header file is included.
+//
+// Here's a quick run-down of the versions:
+//  defined(_POSIX_SOURCE)		1003.1-1988
+//  _POSIX_C_SOURCE == 1		1003.1-1990
+//  _POSIX_C_SOURCE == 2		1003.2-1992 C Language Binding Option
+//  _POSIX_C_SOURCE == 199309		1003.1b-1993
+//  _POSIX_C_SOURCE == 199506		1003.1c-1995, 1003.1i-1995,
+//					and the omnibus ISO/IEC 9945-1: 1996
+//  _POSIX_C_SOURCE == 200112		1003.1-2001
+//  _POSIX_C_SOURCE == 200809		1003.1-2008
+//
+// In addition, the X/Open Portability Guide, which is now the Single UNIX
+// Specification, defines a feature-test macro which indicates the version of
+// that specification, and which subsumes _POSIX_C_SOURCE.
+//
+// Our macros begin with two underscores to avoid namespace screwage.
+
+// Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1.
+
+// Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2.
+
+// Deal with various X/Open Portability Guides and Single UNIX Spec.
+
+// Deal with all versions of POSIX.  The ordering relative to the tests above is
+// important.
+// -
+// Deal with _ANSI_SOURCE:
+// If it is defined, and no other compilation environment is explicitly
+// requested, then define our internal feature-test macros to zero.  This
+// makes no difference to the preprocessor (undefined symbols in preprocessing
+// expressions are defined to have value zero), but makes it more convenient for
+// a test program to print out the values.
+//
+// If a program mistakenly defines _ANSI_SOURCE and some other macro such as
+// _POSIX_C_SOURCE, we will assume that it wants the broader compilation
+// environment (and in fact we will never get here).
+
+// User override __EXT1_VISIBLE
+
+// Old versions of GCC use non-standard ARM arch symbols; acle-compat.h
+// translates them to __ARM_ARCH and the modern feature symbols defined by ARM.
+
+// Nullability qualifiers: currently only supported by Clang.
+
+// Type Safety Checking
+//
+// Clang provides additional attributes to enable checking type safety
+// properties that cannot be enforced by the C type system.
+
+// Lock annotations.
+//
+// Clang provides support for doing basic thread-safety tests at
+// compile-time, by marking which locks will/should be held when
+// entering/leaving a functions.
+//
+// Furthermore, it is also possible to annotate variables and structure
+// members to enforce that they are only accessed when certain locks are
+// held.
+
+// Structure implements a lock.
+
+// Function acquires an exclusive or shared lock.
+
+// Function attempts to acquire an exclusive or shared lock.
+
+// Function releases a lock.
+
+// Function asserts that an exclusive or shared lock is held.
+
+// Function requires that an exclusive or shared lock is or is not held.
+
+// Function should not be analyzed.
+
+// Function or variable should not be sanitized, e.g., by AddressSanitizer.
+// GCC has the nosanitize attribute, but as a function attribute only, and
+// warns on use as a variable attribute.
+
+// Guard variables and structure members by lock.
+
+// Alignment builtins for better type checking and improved code generation.
+// Provide fallback versions for other compilers (GCC/Clang < 10):
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1988, 1989, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)termios.h	8.3 (Berkeley) 3/28/94
+// $FreeBSD$
+
+// Special Control Characters
+//
+// Index into c_cc[] character array.
+//
+//	Name	     Subscript	Enabled by
+//			7	   ex-spare 1
+//			19	   spare 2
+
+// Input flags - software input processing
+
+// Output flags - software output processing
+
+// Control flags - hardware control of terminal
+
+// "Local" flags - dumping ground for other state
+//
+// Warning: some flags in this structure begin with
+// the letter "I" and look like they belong in the
+// input flag.
+
+// Standard speeds
+
+type Tcflag_t = uint32 /* _termios.h:224:22 */
+type Cc_t = uint8      /* _termios.h:225:23 */
+type Speed_t = uint32  /* _termios.h:226:22 */
+
+type Termios = struct {
+	Fc_iflag  Tcflag_t
+	Fc_oflag  Tcflag_t
+	Fc_cflag  Tcflag_t
+	Fc_lflag  Tcflag_t
+	Fc_cc     [20]Cc_t
+	Fc_ispeed Speed_t
+	Fc_ospeed Speed_t
+} /* _termios.h:228:1 */
+
+// -
+// SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+//
+// Copyright (c) 2002 Mike Barcroft <mike@FreeBSD.org>
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+// $FreeBSD$
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1991, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// This code is derived from software contributed to Berkeley by
+// Berkeley Software Design, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)cdefs.h	8.8 (Berkeley) 1/9/95
+// $FreeBSD$
+
+// -
+// This file is in the public domain.
+// $FreeBSD$
+
+// -
+// SPDX-License-Identifier: BSD-4-Clause
+//
+// Copyright (c) 2002 Mike Barcroft <mike@FreeBSD.org>
+// Copyright (c) 1990, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. All advertising materials mentioning features or use of this software
+//    must display the following acknowledgement:
+//	This product includes software developed by the University of
+//	California, Berkeley and its contributors.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	From: @(#)ansi.h	8.2 (Berkeley) 1/4/94
+//	From: @(#)types.h	8.3 (Berkeley) 1/5/94
+// $FreeBSD$
+
+// -
+// This file is in the public domain.
+// $FreeBSD$
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1988, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)limits.h	8.3 (Berkeley) 1/4/94
+// $FreeBSD$
+
+// According to ANSI (section 2.2.4.2), the values below must be usable by
+// #if preprocessing directives.  Additionally, the expression must have the
+// same type as would an expression that is an object of the corresponding
+// type converted according to the integral promotions.  The subtraction for
+// INT_MIN, etc., is so the value is not unsigned; e.g., 0x80000000 is an
+// unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
+
+// max value for an unsigned long long
+
+// Quads and longs are the same on the amd64.  Ensure they stay in sync.
+
+// Minimum signal stack size.
+
+// Basic types upon which most other types are built.
+type X__int8_t = int8     /* _types.h:55:22 */
+type X__uint8_t = uint8   /* _types.h:56:24 */
+type X__int16_t = int16   /* _types.h:57:17 */
+type X__uint16_t = uint16 /* _types.h:58:25 */
+type X__int32_t = int32   /* _types.h:59:15 */
+type X__uint32_t = uint32 /* _types.h:60:23 */
+type X__int64_t = int64   /* _types.h:62:16 */
+type X__uint64_t = uint64 /* _types.h:63:24 */
+
+// Standard type definitions.
+type X__clock_t = X__int32_t         /* _types.h:75:19 */ // clock()...
+type X__critical_t = X__int64_t      /* _types.h:76:19 */
+type X__double_t = float64           /* _types.h:78:17 */
+type X__float_t = float32            /* _types.h:79:16 */
+type X__intfptr_t = X__int64_t       /* _types.h:81:19 */
+type X__intptr_t = X__int64_t        /* _types.h:82:19 */
+type X__intmax_t = X__int64_t        /* _types.h:93:19 */
+type X__int_fast8_t = X__int32_t     /* _types.h:94:19 */
+type X__int_fast16_t = X__int32_t    /* _types.h:95:19 */
+type X__int_fast32_t = X__int32_t    /* _types.h:96:19 */
+type X__int_fast64_t = X__int64_t    /* _types.h:97:19 */
+type X__int_least8_t = X__int8_t     /* _types.h:98:18 */
+type X__int_least16_t = X__int16_t   /* _types.h:99:19 */
+type X__int_least32_t = X__int32_t   /* _types.h:100:19 */
+type X__int_least64_t = X__int64_t   /* _types.h:101:19 */
+type X__ptrdiff_t = X__int64_t       /* _types.h:103:19 */ // ptr1 - ptr2
+type X__register_t = X__int64_t      /* _types.h:104:19 */
+type X__segsz_t = X__int64_t         /* _types.h:105:19 */ // segment size (in pages)
+type X__size_t = X__uint64_t         /* _types.h:106:20 */ // sizeof()
+type X__ssize_t = X__int64_t         /* _types.h:107:19 */ // byte count or error
+type X__time_t = X__int64_t          /* _types.h:108:19 */ // time()...
+type X__uintfptr_t = X__uint64_t     /* _types.h:109:20 */
+type X__uintptr_t = X__uint64_t      /* _types.h:110:20 */
+type X__uintmax_t = X__uint64_t      /* _types.h:121:20 */
+type X__uint_fast8_t = X__uint32_t   /* _types.h:122:20 */
+type X__uint_fast16_t = X__uint32_t  /* _types.h:123:20 */
+type X__uint_fast32_t = X__uint32_t  /* _types.h:124:20 */
+type X__uint_fast64_t = X__uint64_t  /* _types.h:125:20 */
+type X__uint_least8_t = X__uint8_t   /* _types.h:126:19 */
+type X__uint_least16_t = X__uint16_t /* _types.h:127:20 */
+type X__uint_least32_t = X__uint32_t /* _types.h:128:20 */
+type X__uint_least64_t = X__uint64_t /* _types.h:129:20 */
+type X__u_register_t = X__uint64_t   /* _types.h:131:20 */
+type X__vm_offset_t = X__uint64_t    /* _types.h:132:20 */
+type X__vm_paddr_t = X__uint64_t     /* _types.h:133:20 */
+type X__vm_size_t = X__uint64_t      /* _types.h:134:20 */
+type X___wchar_t = int32             /* _types.h:141:14 */
+
+// Standard type definitions.
+type X__blksize_t = X__int32_t   /* _types.h:40:19 */ // file block size
+type X__blkcnt_t = X__int64_t    /* _types.h:41:19 */ // file block count
+type X__clockid_t = X__int32_t   /* _types.h:42:19 */ // clock_gettime()...
+type X__fflags_t = X__uint32_t   /* _types.h:43:20 */ // file flags
+type X__fsblkcnt_t = X__uint64_t /* _types.h:44:20 */
+type X__fsfilcnt_t = X__uint64_t /* _types.h:45:20 */
+type X__gid_t = X__uint32_t      /* _types.h:46:20 */
+type X__id_t = X__int64_t        /* _types.h:47:19 */ // can hold a gid_t, pid_t, or uid_t
+type X__ino_t = X__uint64_t      /* _types.h:48:20 */ // inode number
+type X__key_t = int64            /* _types.h:49:15 */ // IPC key (for Sys V IPC)
+type X__lwpid_t = X__int32_t     /* _types.h:50:19 */ // Thread ID (a.k.a. LWP)
+type X__mode_t = X__uint16_t     /* _types.h:51:20 */ // permissions
+type X__accmode_t = int32        /* _types.h:52:14 */ // access permissions
+type X__nl_item = int32          /* _types.h:53:14 */
+type X__nlink_t = X__uint64_t    /* _types.h:54:20 */ // link count
+type X__off_t = X__int64_t       /* _types.h:55:19 */ // file offset
+type X__off64_t = X__int64_t     /* _types.h:56:19 */ // file offset (alias)
+type X__pid_t = X__int32_t       /* _types.h:57:19 */ // process [group]
+type X__rlim_t = X__int64_t      /* _types.h:58:19 */ // resource limit - intentionally
+// signed, because of legacy code
+// that uses -1 for RLIM_INFINITY
+type X__sa_family_t = X__uint8_t /* _types.h:61:19 */
+type X__socklen_t = X__uint32_t  /* _types.h:62:20 */
+type X__suseconds_t = int64      /* _types.h:63:15 */ // microseconds (signed)
+type X__timer_t = uintptr        /* _types.h:64:24 */ // timer_gettime()...
+type X__mqd_t = uintptr          /* _types.h:65:21 */ // mq_open()...
+type X__uid_t = X__uint32_t      /* _types.h:66:20 */
+type X__useconds_t = uint32      /* _types.h:67:22 */ // microseconds (unsigned)
+type X__cpuwhich_t = int32       /* _types.h:68:14 */ // which parameter for cpuset.
+type X__cpulevel_t = int32       /* _types.h:69:14 */ // level parameter for cpuset.
+type X__cpusetid_t = int32       /* _types.h:70:14 */ // cpuset identifier.
+type X__daddr_t = X__int64_t     /* _types.h:71:19 */ // bwrite(3), FIOBMAP2, etc
+
+// Unusual type definitions.
+// rune_t is declared to be an “int” instead of the more natural
+// “unsigned long” or “long”.  Two things are happening here.  It is not
+// unsigned so that EOF (-1) can be naturally assigned to it and used.  Also,
+// it looks like 10646 will be a 31 bit standard.  This means that if your
+// ints cannot hold 32 bits, you will be in trouble.  The reason an int was
+// chosen over a long is that the is*() and to*() routines take ints (says
+// ANSI C), but they use __ct_rune_t instead of int.
+//
+// NOTE: rune_t is not covered by ANSI nor other standards, and should not
+// be instantiated outside of lib/libc/locale.  Use wchar_t.  wint_t and
+// rune_t must be the same type.  Also, wint_t should be able to hold all
+// members of the largest character set plus one extra value (WEOF), and
+// must be at least 16 bits.
+type X__ct_rune_t = int32     /* _types.h:91:14 */ // arg type for ctype funcs
+type X__rune_t = X__ct_rune_t /* _types.h:92:21 */ // rune_t (see above)
+type X__wint_t = X__ct_rune_t /* _types.h:93:21 */ // wint_t (see above)
+
+// Clang already provides these types as built-ins, but only in C++ mode.
+type X__char16_t = X__uint_least16_t /* _types.h:97:26 */
+type X__char32_t = X__uint_least32_t /* _types.h:98:26 */
+// In C++11, char16_t and char32_t are built-in types.
+
+type X__max_align_t = struct {
+	F__max_align1 int64
+	F__max_align2 float64
+} /* _types.h:111:3 */
+
+type X__dev_t = X__uint64_t /* _types.h:113:20 */ // device number
+
+type X__fixpt_t = X__uint32_t /* _types.h:115:20 */ // fixed point number
+
+// mbstate_t is an opaque object to keep conversion state during multibyte
+// stream conversions.
+type X__mbstate_t = struct {
+	F__ccgo_pad1 [0]uint64
+	F__mbstate8  [128]int8
+} /* _types.h:124:3 */
+
+type X__rman_res_t = X__uintmax_t /* _types.h:126:25 */
+
+// Types for varargs. These are all provided by builtin types these
+// days, so centralize their definition.
+type X__va_list = X__builtin_va_list /* _types.h:133:27 */ // internally known to gcc
+type X__gnuc_va_list = X__va_list    /* _types.h:140:20 */ // compatibility w/GNU headers
+
+// When the following macro is defined, the system uses 64-bit inode numbers.
+// Programs can use this to avoid including <sys/param.h>, with its associated
+// namespace pollution.
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1988, 1989, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttycom.h	8.1 (Berkeley) 3/28/94
+// $FreeBSD$
+
+// Window/terminal size structure.  This information is stored by the kernel
+// in order to provide a consistent interface, but is not used by the kernel.
+type Winsize = struct {
+	Fws_row    uint16
+	Fws_col    uint16
+	Fws_xpixel uint16
+	Fws_ypixel uint16
+} /* _winsize.h:42:1 */
+
+type Pid_t = X__pid_t /* termios.h:46:18 */
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1988, 1989, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttycom.h	8.1 (Berkeley) 3/28/94
+// $FreeBSD$
+
+// Tty ioctl's except for those supported only for backwards compatibility
+// with the old tty driver.
+
+// 0-2 compat
+// 3-7 unused
+// 8-10 compat
+// 11-12 unused
+// 17-18 compat
+// 23-25 unused
+// 29-85 unused
+// 88 unused
+// 89-91 conflicts: tun and tap
+// 92-93 tun and tap
+// 94-97 conflicts: tun and tap
+// 100 unused
+// 105 unused
+// 116-117 compat
+// 124-127 compat
+
+// -
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright (c) 1982, 1986, 1993
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttydefaults.h	8.4 (Berkeley) 1/21/94
+// $FreeBSD$
+
+// System wide defaults for terminal state.
+
+// Defaults on "first" open.
+
+// Control Character Defaults
+// XXX: A lot of code uses lowercase characters, but control-character
+// conversion is actually only valid when applied to uppercase
+// characters. We just treat lowercase characters as if they were
+// inserted as uppercase.
+// compat
+
+// PROTECTED INCLUSION ENDS HERE
+
+// #define TTYDEFCHARS to include an array of default control characters.
+var _ int8 /* gen.c:2:13: */
diff --git a/vendor/modernc.org/libc/termios/termios_illumos_amd64.go b/vendor/modernc.org/libc/termios/termios_illumos_amd64.go
new file mode 100644
index 0000000..6af3344
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/termios_illumos_amd64.go
@@ -0,0 +1,2689 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_illumos_amd64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+import (
+	"math"
+	"reflect"
+	"sync/atomic"
+	"unsafe"
+)
+
+var _ = math.Pi
+var _ reflect.Kind
+var _ atomic.Value
+var _ unsafe.Pointer
+
+const (
+	B0                              = 0            // termios.h:543:1:
+	B1000000                        = 24           // termios.h:567:1:
+	B110                            = 3            // termios.h:546:1:
+	B115200                         = 18           // termios.h:561:1:
+	B1152000                        = 25           // termios.h:568:1:
+	B1200                           = 9            // termios.h:552:1:
+	B134                            = 4            // termios.h:547:1:
+	B150                            = 5            // termios.h:548:1:
+	B1500000                        = 26           // termios.h:569:1:
+	B153600                         = 19           // termios.h:562:1:
+	B1800                           = 10           // termios.h:553:1:
+	B19200                          = 14           // termios.h:557:1:
+	B200                            = 6            // termios.h:549:1:
+	B2000000                        = 27           // termios.h:570:1:
+	B230400                         = 20           // termios.h:563:1:
+	B2400                           = 11           // termios.h:554:1:
+	B2500000                        = 28           // termios.h:571:1:
+	B300                            = 7            // termios.h:550:1:
+	B3000000                        = 29           // termios.h:572:1:
+	B307200                         = 21           // termios.h:564:1:
+	B3500000                        = 30           // termios.h:573:1:
+	B38400                          = 15           // termios.h:558:1:
+	B4000000                        = 31           // termios.h:574:1:
+	B460800                         = 22           // termios.h:565:1:
+	B4800                           = 12           // termios.h:555:1:
+	B50                             = 1            // termios.h:544:1:
+	B57600                          = 16           // termios.h:559:1:
+	B600                            = 8            // termios.h:551:1:
+	B75                             = 2            // termios.h:545:1:
+	B76800                          = 17           // termios.h:560:1:
+	B921600                         = 23           // termios.h:566:1:
+	B9600                           = 13           // termios.h:556:1:
+	BRKINT                          = 0000002      // termios.h:187:1:
+	BS0                             = 0            // termios.h:244:1:
+	BS1                             = 0020000      // termios.h:245:1:
+	BSDLY                           = 0020000      // termios.h:243:1:
+	CBAUD                           = 0000017      // termios.h:258:1:
+	CBAUDEXT                        = 010000000    // termios.h:280:1:
+	CCTS_OFLOW                      = 020000000000 // termios.h:287:1:
+	CDEL                            = 0177         // termios.h:157:1:
+	CDSUSP                          = 25           // termios.h:176:1:
+	CEOF                            = 04           // termios.h:170:1:
+	CEOL                            = 0            // termios.h:168:1:
+	CEOL2                           = 0            // termios.h:169:1:
+	CEOT                            = 04           // termios.h:167:1:
+	CERASE                          = 0177         // termios.h:164:1:
+	CERASE2                         = 8            // termios.h:165:1:
+	CESC                            = 92           // termios.h:161:1:
+	CFLUSH                          = 15           // termios.h:178:1:
+	CIBAUD                          = 03600000     // termios.h:278:1:
+	CIBAUDEXT                       = 020000000    // termios.h:281:1:
+	CINTR                           = 3            // termios.h:162:1:
+	CKILL                           = 21           // termios.h:166:1:
+	CLNEXT                          = 22           // termios.h:180:1:
+	CLOCAL                          = 0004000      // termios.h:270:1:
+	CLOCKS_PER_SEC                  = 1000000      // time_iso.h:78:1:
+	CLOCK_HIGHRES                   = 4            // time_impl.h:126:1:
+	CLOCK_MONOTONIC                 = 4            // time_impl.h:124:1:
+	CLOCK_PROCESS_CPUTIME_ID        = 5            // time_impl.h:125:1:
+	CLOCK_PROF                      = 2            // time_impl.h:127:1:
+	CLOCK_REALTIME                  = 3            // time_impl.h:123:1:
+	CLOCK_THREAD_CPUTIME_ID         = 2            // time_impl.h:122:1:
+	CLOCK_VIRTUAL                   = 1            // time_impl.h:121:1:
+	CNSWTCH                         = 0            // termios.h:174:1:
+	CNUL                            = 0            // termios.h:156:1:
+	CQUIT                           = 034          // termios.h:163:1:
+	CR0                             = 0            // termios.h:228:1:
+	CR1                             = 0001000      // termios.h:229:1:
+	CR2                             = 0002000      // termios.h:230:1:
+	CR3                             = 0003000      // termios.h:231:1:
+	CRDLY                           = 0003000      // termios.h:227:1:
+	CREAD                           = 0000200      // termios.h:266:1:
+	CRPRNT                          = 18           // termios.h:177:1:
+	CRTSCTS                         = 020000000000 // termios.h:277:1:
+	CRTSXOFF                        = 010000000000 // termios.h:276:1:
+	CRTS_IFLOW                      = 010000000000 // termios.h:286:1:
+	CS5                             = 0            // termios.h:261:1:
+	CS6                             = 0000020      // termios.h:262:1:
+	CS7                             = 0000040      // termios.h:263:1:
+	CS8                             = 0000060      // termios.h:264:1:
+	CSIZE                           = 0000060      // termios.h:260:1:
+	CSTART                          = 021          // termios.h:171:1:
+	CSTATUS                         = 20           // termios.h:181:1:
+	CSTOP                           = 023          // termios.h:172:1:
+	CSTOPB                          = 0000100      // termios.h:265:1:
+	CSUSP                           = 26           // termios.h:175:1:
+	CSWTCH                          = 032          // termios.h:173:1:
+	CWERASE                         = 23           // termios.h:179:1:
+	DEFECHO                         = 0010000      // termios.h:309:1:
+	DIOC                            = 25600        // termios.h:524:1:
+	DIOCGETP                        = 25608        // termios.h:525:1:
+	DIOCSETP                        = 25609        // termios.h:526:1:
+	DOSMODE                         = 0100000      // termios.h:208:1:
+	DST_AUST                        = 2            // time.h:115:1:
+	DST_AUSTALT                     = 10           // time.h:123:1:
+	DST_CAN                         = 6            // time.h:119:1:
+	DST_EET                         = 5            // time.h:118:1:
+	DST_GB                          = 7            // time.h:120:1:
+	DST_MET                         = 4            // time.h:117:1:
+	DST_NONE                        = 0            // time.h:113:1:
+	DST_RUM                         = 8            // time.h:121:1:
+	DST_TUR                         = 9            // time.h:122:1:
+	DST_USA                         = 1            // time.h:114:1:
+	DST_WET                         = 3            // time.h:116:1:
+	ECHO                            = 0000010      // termios.h:299:1:
+	ECHOCTL                         = 0001000      // termios.h:306:1:
+	ECHOE                           = 0000020      // termios.h:300:1:
+	ECHOK                           = 0000040      // termios.h:301:1:
+	ECHOKE                          = 0004000      // termios.h:308:1:
+	ECHONL                          = 0000100      // termios.h:302:1:
+	ECHOPRT                         = 0002000      // termios.h:307:1:
+	EXTA                            = 14           // ttydev.h:56:1:
+	EXTB                            = 15           // ttydev.h:57:1:
+	FD_SETSIZE                      = 65536        // select.h:88:1:
+	FF0                             = 0            // termios.h:250:1:
+	FF1                             = 0100000      // termios.h:251:1:
+	FFDLY                           = 0100000      // termios.h:249:1:
+	FIORDCHK                        = 26115        // termios.h:537:1:
+	FLUSHO                          = 0020000      // termios.h:310:1:
+	HUPCL                           = 0002000      // termios.h:269:1:
+	IBSHIFT                         = 16           // termios.h:65:1:
+	ICANON                          = 0000002      // termios.h:293:1:
+	ICRNL                           = 0000400      // termios.h:194:1:
+	IEXTEN                          = 0100000      // termios.h:314:1:
+	IGNBRK                          = 0000001      // termios.h:186:1:
+	IGNCR                           = 0000200      // termios.h:193:1:
+	IGNPAR                          = 0000004      // termios.h:188:1:
+	IMAXBEL                         = 0020000      // termios.h:207:1:
+	INLCR                           = 0000100      // termios.h:192:1:
+	INPCK                           = 0000020      // termios.h:190:1:
+	IOCTYPE                         = 0xff00       // termios.h:336:1:
+	ISIG                            = 0000001      // termios.h:292:1:
+	ISTRIP                          = 0000040      // termios.h:191:1:
+	ITIMER_PROF                     = 2            // time.h:201:1:
+	ITIMER_REAL                     = 0            // time.h:199:1:
+	ITIMER_REALPROF                 = 3            // time.h:204:1:
+	ITIMER_VIRTUAL                  = 1            // time.h:200:1:
+	IUCLC                           = 0001000      // termios.h:198:1:
+	IXANY                           = 0004000      // termios.h:203:1:
+	IXOFF                           = 0010000      // termios.h:205:1:
+	IXON                            = 0002000      // termios.h:200:1:
+	KBENABLED                       = 21514        // termios.h:333:1:
+	LDCHG                           = 17410        // termios.h:508:1:
+	LDCLOSE                         = 17409        // termios.h:507:1:
+	LDDMAP                          = 17522        // termios.h:518:1:
+	LDEMAP                          = 17521        // termios.h:517:1:
+	LDGETT                          = 17416        // termios.h:509:1:
+	LDGMAP                          = 17519        // termios.h:515:1:
+	LDIOC                           = 17408        // termios.h:504:1:
+	LDNMAP                          = 17520        // termios.h:516:1:
+	LDOPEN                          = 17408        // termios.h:506:1:
+	LDSETT                          = 17417        // termios.h:510:1:
+	LDSMAP                          = 17518        // termios.h:514:1:
+	LOBLK                           = 0040000      // termios.h:274:1:
+	MICROSEC                        = 1000000      // time.h:246:1:
+	MILLISEC                        = 1000         // time.h:245:1:
+	NANOSEC                         = 1000000000   // time.h:247:1:
+	NBBY                            = 8            // select.h:103:1:
+	NCC                             = 8            // termios.h:71:1:
+	NCCS                            = 19           // termios.h:75:1:
+	NL0                             = 0            // termios.h:225:1:
+	NL1                             = 0000400      // termios.h:226:1:
+	NLDLY                           = 0000400      // termios.h:224:1:
+	NOFLSH                          = 0000200      // termios.h:303:1:
+	OCRNL                           = 0000010      // termios.h:219:1:
+	OFDEL                           = 0000200      // termios.h:223:1:
+	OFILL                           = 0000100      // termios.h:222:1:
+	OLCUC                           = 0000002      // termios.h:216:1:
+	ONLCR                           = 0000004      // termios.h:218:1:
+	ONLRET                          = 0000040      // termios.h:221:1:
+	ONOCR                           = 0000020      // termios.h:220:1:
+	OPOST                           = 0000001      // termios.h:212:1:
+	PAGEOUT                         = 0200000      // termios.h:254:1:
+	PARENB                          = 0000400      // termios.h:267:1:
+	PAREXT                          = 04000000     // termios.h:279:1:
+	PARMRK                          = 0000010      // termios.h:189:1:
+	PARODD                          = 0001000      // termios.h:268:1:
+	PENDIN                          = 0040000      // termios.h:311:1:
+	P_MYID                          = -1           // types.h:632:1:
+	RCV1EN                          = 0010000      // termios.h:272:1:
+	REG_LABEL_BP                    = 2            // machtypes.h:44:1:
+	REG_LABEL_MAX                   = 8            // machtypes.h:51:1:
+	REG_LABEL_PC                    = 0            // machtypes.h:42:1:
+	REG_LABEL_R12                   = 4            // machtypes.h:47:1:
+	REG_LABEL_R13                   = 5            // machtypes.h:48:1:
+	REG_LABEL_R14                   = 6            // machtypes.h:49:1:
+	REG_LABEL_R15                   = 7            // machtypes.h:50:1:
+	REG_LABEL_RBX                   = 3            // machtypes.h:46:1:
+	REG_LABEL_SP                    = 1            // machtypes.h:43:1:
+	RTS_TOG                         = 21537        // termios.h:340:1:
+	SEC                             = 1            // time.h:244:1:
+	TAB0                            = 0            // termios.h:233:1:
+	TAB1                            = 0004000      // termios.h:234:1:
+	TAB2                            = 0010000      // termios.h:235:1:
+	TAB3                            = 0014000      // termios.h:236:1:
+	TABDLY                          = 0014000      // termios.h:232:1:
+	TCDSET                          = 21536        // termios.h:339:1:
+	TCFLSH                          = 21511        // termios.h:327:1:
+	TCGETA                          = 21505        // termios.h:321:1:
+	TCGETS                          = 21517        // termios.h:354:1:
+	TCIFLUSH                        = 0            // termios.h:409:1:
+	TCIOFF                          = 2            // termios.h:415:1:
+	TCIOFLUSH                       = 2            // termios.h:411:1:
+	TCION                           = 3            // termios.h:416:1:
+	TCOFLUSH                        = 1            // termios.h:410:1:
+	TCOOFF                          = 0            // termios.h:413:1:
+	TCOON                           = 1            // termios.h:414:1:
+	TCSADRAIN                       = 21519        // termios.h:361:1:
+	TCSAFLUSH                       = 21520        // termios.h:405:1:
+	TCSANOW                         = 21518        // termios.h:357:1:
+	TCSBRK                          = 21509        // termios.h:325:1:
+	TCSETA                          = 21506        // termios.h:322:1:
+	TCSETAF                         = 21508        // termios.h:324:1:
+	TCSETAW                         = 21507        // termios.h:323:1:
+	TCSETS                          = 21518        // termios.h:355:1:
+	TCSETSF                         = 21520        // termios.h:363:1:
+	TCSETSW                         = 21519        // termios.h:359:1:
+	TCXONC                          = 21510        // termios.h:326:1:
+	TIMER_ABSTIME                   = 0x1          // time_impl.h:134:1:
+	TIMER_RELTIME                   = 0x0          // time_impl.h:133:1:
+	TIME_UTC                        = 0x1          // time.h:306:1:
+	TIOC                            = 21504        // termios.h:319:1:
+	TIOCCBRK                        = 29818        // termios.h:452:1:
+	TIOCCDTR                        = 29816        // termios.h:454:1:
+	TIOCCILOOP                      = 29804        // termios.h:463:1:
+	TIOCEXCL                        = 29709        // termios.h:436:1:
+	TIOCFLUSH                       = 29712        // termios.h:438:1:
+	TIOCGETC                        = 29714        // termios.h:440:1:
+	TIOCGETD                        = 29696        // termios.h:430:1:
+	TIOCGETLD                       = 21628        // termios.h:369:1:
+	TIOCGETP                        = 29704        // termios.h:433:1:
+	TIOCGLTC                        = 29812        // termios.h:456:1:
+	TIOCGPGRP                       = 29716        // termios.h:472:1:
+	TIOCGPPS                        = 21629        // termios.h:386:1:
+	TIOCGPPSEV                      = 21631        // termios.h:388:1:
+	TIOCGSID                        = 29718        // termios.h:474:1:
+	TIOCGSOFTCAR                    = 21609        // termios.h:348:1:
+	TIOCGWINSZ                      = 21608        // termios.h:342:1:
+	TIOCHPCL                        = 29698        // termios.h:432:1:
+	TIOCKBOF                        = 21513        // termios.h:332:1:
+	TIOCKBON                        = 21512        // termios.h:331:1:
+	TIOCLBIC                        = 29822        // termios.h:448:1:
+	TIOCLBIS                        = 29823        // termios.h:447:1:
+	TIOCLGET                        = 29820        // termios.h:450:1:
+	TIOCLSET                        = 29821        // termios.h:449:1:
+	TIOCMBIC                        = 29724        // termios.h:482:1:
+	TIOCMBIS                        = 29723        // termios.h:481:1:
+	TIOCMGET                        = 29725        // termios.h:483:1:
+	TIOCMSET                        = 29722        // termios.h:480:1:
+	TIOCM_CAR                       = 0100         // termios.h:490:1:
+	TIOCM_CD                        = 64           // termios.h:491:1:
+	TIOCM_CTS                       = 0040         // termios.h:489:1:
+	TIOCM_DSR                       = 0400         // termios.h:494:1:
+	TIOCM_DTR                       = 0002         // termios.h:485:1:
+	TIOCM_LE                        = 0001         // termios.h:484:1:
+	TIOCM_RI                        = 128          // termios.h:493:1:
+	TIOCM_RNG                       = 0200         // termios.h:492:1:
+	TIOCM_RTS                       = 0004         // termios.h:486:1:
+	TIOCM_SR                        = 0020         // termios.h:488:1:
+	TIOCM_ST                        = 0010         // termios.h:487:1:
+	TIOCNOTTY                       = 29809        // termios.h:458:1:
+	TIOCNXCL                        = 29710        // termios.h:437:1:
+	TIOCOUTQ                        = 29811        // termios.h:457:1:
+	TIOCREMOTE                      = 29726        // termios.h:498:1:
+	TIOCSBRK                        = 29819        // termios.h:451:1:
+	TIOCSCTTY                       = 29828        // termios.h:459:1:
+	TIOCSDTR                        = 29817        // termios.h:453:1:
+	TIOCSETC                        = 29713        // termios.h:439:1:
+	TIOCSETD                        = 29697        // termios.h:431:1:
+	TIOCSETLD                       = 21627        // termios.h:368:1:
+	TIOCSETN                        = 29706        // termios.h:435:1:
+	TIOCSETP                        = 29705        // termios.h:434:1:
+	TIOCSIGNAL                      = 29727        // termios.h:499:1:
+	TIOCSILOOP                      = 29805        // termios.h:462:1:
+	TIOCSLTC                        = 29813        // termios.h:455:1:
+	TIOCSPGRP                       = 29717        // termios.h:473:1:
+	TIOCSPPS                        = 21630        // termios.h:387:1:
+	TIOCSSOFTCAR                    = 21610        // termios.h:349:1:
+	TIOCSTART                       = 29806        // termios.h:461:1:
+	TIOCSTI                         = 29719        // termios.h:477:1:
+	TIOCSTOP                        = 29807        // termios.h:460:1:
+	TIOCSWINSZ                      = 21607        // termios.h:343:1:
+	TOSTOP                          = 0000400      // termios.h:304:1:
+	VCEOF                           = 8            // termios.h:153:1:
+	VCEOL                           = 9            // termios.h:154:1:
+	VDISCARD                        = 13           // termios.h:143:1:
+	VDSUSP                          = 11           // termios.h:141:1:
+	VEOF                            = 4            // termios.h:127:1:
+	VEOL                            = 5            // termios.h:128:1:
+	VEOL2                           = 6            // termios.h:130:1:
+	VERASE                          = 2            // termios.h:125:1:
+	VERASE2                         = 17           // termios.h:147:1:
+	VINTR                           = 0            // termios.h:123:1:
+	VKILL                           = 3            // termios.h:126:1:
+	VLNEXT                          = 15           // termios.h:145:1:
+	VMIN                            = 4            // termios.h:132:1:
+	VQUIT                           = 1            // termios.h:124:1:
+	VREPRINT                        = 12           // termios.h:142:1:
+	VSTART                          = 8            // termios.h:137:1:
+	VSTATUS                         = 16           // termios.h:146:1:
+	VSTOP                           = 9            // termios.h:138:1:
+	VSUSP                           = 10           // termios.h:139:1:
+	VSWTCH                          = 7            // termios.h:135:1:
+	VT0                             = 0            // termios.h:247:1:
+	VT1                             = 0040000      // termios.h:248:1:
+	VTDLY                           = 0040000      // termios.h:246:1:
+	VTIME                           = 5            // termios.h:133:1:
+	VWERASE                         = 14           // termios.h:144:1:
+	WRAP                            = 0400000      // termios.h:255:1:
+	XCASE                           = 0000004      // termios.h:297:1:
+	XCLUDE                          = 0100000      // termios.h:275:1:
+	XMT1EN                          = 0020000      // termios.h:273:1:
+	XTABS                           = 0014000      // termios.h:239:1:
+	X_ALIGNMENT_REQUIRED            = 1            // isa_defs.h:262:1:
+	X_BIT_FIELDS_LTOH               = 0            // isa_defs.h:245:1:
+	X_BOOL_ALIGNMENT                = 1            // isa_defs.h:248:1:
+	X_CHAR_ALIGNMENT                = 1            // isa_defs.h:249:1:
+	X_CHAR_IS_SIGNED                = 0            // isa_defs.h:247:1:
+	X_CLOCKID_T                     = 0            // types.h:568:1:
+	X_CLOCK_T                       = 0            // types.h:563:1:
+	X_COND_MAGIC                    = 0x4356       // types.h:426:1:
+	X_DMA_USES_PHYSADDR             = 0            // isa_defs.h:281:1:
+	X_DONT_USE_1275_GENERIC_NAMES   = 0            // isa_defs.h:287:1:
+	X_DOUBLE_ALIGNMENT              = 8            // isa_defs.h:256:1:
+	X_DOUBLE_COMPLEX_ALIGNMENT      = 8            // isa_defs.h:257:1:
+	X_DTRACE_VERSION                = 1            // feature_tests.h:490:1:
+	X_FILE_OFFSET_BITS              = 64           // <builtin>:25:1:
+	X_FIRMWARE_NEEDS_FDISK          = 0            // isa_defs.h:282:1:
+	X_FLOAT_ALIGNMENT               = 4            // isa_defs.h:252:1:
+	X_FLOAT_COMPLEX_ALIGNMENT       = 4            // isa_defs.h:253:1:
+	X_HAVE_CPUID_INSN               = 0            // isa_defs.h:288:1:
+	X_IEEE_754                      = 0            // isa_defs.h:246:1:
+	X_INT64_TYPE                    = 0            // int_types.h:82:1:
+	X_INT_ALIGNMENT                 = 4            // isa_defs.h:251:1:
+	X_ISO_CPP_14882_1998            = 0            // feature_tests.h:466:1:
+	X_ISO_C_9899_1999               = 0            // feature_tests.h:472:1:
+	X_ISO_C_9899_2011               = 0            // feature_tests.h:478:1:
+	X_ISO_TIME_ISO_H                = 0            // time_iso.h:46:1:
+	X_LARGEFILE64_SOURCE            = 1            // feature_tests.h:231:1:
+	X_LARGEFILE_SOURCE              = 1            // feature_tests.h:235:1:
+	X_LITTLE_ENDIAN                 = 0            // isa_defs.h:242:1:
+	X_LOCALE_T                      = 0            // time.h:291:1:
+	X_LONGLONG_TYPE                 = 0            // feature_tests.h:412:1:
+	X_LONG_ALIGNMENT                = 8            // isa_defs.h:254:1:
+	X_LONG_DOUBLE_ALIGNMENT         = 16           // isa_defs.h:258:1:
+	X_LONG_DOUBLE_COMPLEX_ALIGNMENT = 16           // isa_defs.h:259:1:
+	X_LONG_LONG_ALIGNMENT           = 8            // isa_defs.h:255:1:
+	X_LONG_LONG_ALIGNMENT_32        = 4            // isa_defs.h:268:1:
+	X_LONG_LONG_LTOH                = 0            // isa_defs.h:244:1:
+	X_LP64                          = 1            // <predefined>:286:1:
+	X_MAX_ALIGNMENT                 = 16           // isa_defs.h:261:1:
+	X_MULTI_DATAMODEL               = 0            // isa_defs.h:279:1:
+	X_MUTEX_MAGIC                   = 0x4d58       // types.h:424:1:
+	X_NBBY                          = 8            // select.h:100:1:
+	X_NCC                           = 8            // termios.h:69:1:
+	X_NORETURN_KYWD                 = 0            // feature_tests.h:448:1:
+	X_OFF_T                         = 0            // types.h:142:1:
+	X_POINTER_ALIGNMENT             = 8            // isa_defs.h:260:1:
+	X_POSIX_VDISABLE                = 0            // termios.h:59:1:
+	X_PSM_MODULES                   = 0            // isa_defs.h:284:1:
+	X_PTRDIFF_T                     = 0            // types.h:112:1:
+	X_RESTRICT_KYWD                 = 0            // feature_tests.h:435:1:
+	X_RTC_CONFIG                    = 0            // isa_defs.h:285:1:
+	X_RWL_MAGIC                     = 0x5257       // types.h:427:1:
+	X_SEMA_MAGIC                    = 0x534d       // types.h:425:1:
+	X_SHORT_ALIGNMENT               = 2            // isa_defs.h:250:1:
+	X_SIGEVENT                      = 0            // time.h:132:1:
+	X_SIGSET_T                      = 0            // select.h:73:1:
+	X_SIGVAL                        = 0            // time.h:124:1:
+	X_SIZE_T                        = 0            // types.h:540:1:
+	X_SOFT_HOSTID                   = 0            // isa_defs.h:286:1:
+	X_SSIZE_T                       = 0            // types.h:549:1:
+	X_STACK_GROWS_DOWNWARD          = 0            // isa_defs.h:243:1:
+	X_STDC_C11                      = 0            // feature_tests.h:165:1:
+	X_STDC_C99                      = 0            // feature_tests.h:169:1:
+	X_SUNOS_VTOC_16                 = 0            // isa_defs.h:280:1:
+	X_SUSECONDS_T                   = 0            // time.h:50:1:
+	X_SYS_CCOMPILE_H                = 0            // ccompile.h:32:1:
+	X_SYS_FEATURE_TESTS_H           = 0            // feature_tests.h:41:1:
+	X_SYS_INT_TYPES_H               = 0            // int_types.h:30:1:
+	X_SYS_ISA_DEFS_H                = 0            // isa_defs.h:30:1:
+	X_SYS_MACHTYPES_H               = 0            // machtypes.h:27:1:
+	X_SYS_NULL_H                    = 0            // null.h:17:1:
+	X_SYS_SELECT_H                  = 0            // select.h:45:1:
+	X_SYS_TERMIOS_H                 = 0            // termios.h:32:1:
+	X_SYS_TIME_H                    = 0            // time.h:27:1:
+	X_SYS_TIME_IMPL_H               = 0            // time_impl.h:38:1:
+	X_SYS_TTYDEV_H                  = 0            // ttydev.h:27:1:
+	X_SYS_TYPES_H                   = 0            // types.h:35:1:
+	X_TERMIOS_H                     = 0            // termios.h:27:1:
+	X_TIMER_T                       = 0            // types.h:573:1:
+	X_TIME_H                        = 0            // time.h:37:1:
+	X_TIME_T                        = 0            // time.h:45:1:
+	X_TIOC                          = 21504        // termios.h:315:1:
+	X_UID_T                         = 0            // types.h:400:1:
+	X_XOPEN_VERSION                 = 3            // feature_tests.h:392:1:
+	Sun                             = 1            // <predefined>:172:1:
+	TIOC1                           = 29696        // termios.h:421:1:
+	Unix                            = 1            // <predefined>:175:1:
+)
+
+// used for block sizes
+
+// The boolean_t type has had a varied amount of exposure over the years in
+// terms of how its enumeration constants have been exposed. In particular, it
+// originally used the __XOPEN_OR_POSIX macro to determine whether to prefix the
+// B_TRUE and B_FALSE with an underscore. This check never included the
+// question of if we were in a strict ANSI C environment or whether extensions
+// were defined.
+//
+// Compilers such as clang started defaulting to always including an
+// XOPEN_SOURCE declaration on behalf of users, but also noted __EXTENSIONS__.
+// This would lead most software that had used the non-underscore versions to
+// need it. As such, we have adjusted the non-strict XOPEN environment to retain
+// its old behavior so as to minimize namespace pollution; however, we instead
+// include both variants of the definitions in the generally visible version
+// allowing software written in either world to hopefully end up in a good
+// place.
+//
+// This isn't perfect, but should hopefully minimize the pain for folks actually
+// trying to build software.
+const ( /* types.h:215:1: */
+	B_FALSE   = 0
+	B_TRUE    = 1
+	X_B_FALSE = 0
+	X_B_TRUE  = 1
+)
+
+type Ptrdiff_t = int64 /* <builtin>:3:26 */
+
+type Size_t = uint64 /* <builtin>:9:23 */
+
+type Wchar_t = int32 /* <builtin>:15:24 */
+
+type X__int128_t = struct {
+	Flo int64
+	Fhi int64
+} /* <builtin>:21:43 */ // must match modernc.org/mathutil.Int128
+type X__uint128_t = struct {
+	Flo uint64
+	Fhi uint64
+} /* <builtin>:22:44 */ // must match modernc.org/mathutil.Int128
+
+type X__builtin_va_list = uintptr /* <builtin>:46:14 */
+type X__float128 = float64        /* <builtin>:47:21 */
+
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License, Version 1.0 only
+// (the "License").  You may not use this file except in compliance
+// with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+//	Copyright (c) 1988 AT&T
+//	  All Rights Reserved
+
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+//	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T
+//	  All Rights Reserved
+
+// Copyright 2014 Garrett D'Amore <garrett@damore.org>
+//
+// Copyright (c) 1988, 2010, Oracle and/or its affiliates. All rights reserved.
+
+//  DO NOT EDIT THIS FILE.
+//
+//     It has been auto-edited by fixincludes from:
+//
+// 	"/usr/include/sys/feature_tests.h"
+//
+//     This had to be done to correct non-standard usages in the
+//     original, manufacturer supplied header file.
+
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+
+// Copyright 2013 Garrett D'Amore <garrett@damore.org>
+// Copyright 2016 Joyent, Inc.
+// Copyright 2022 Oxide Computer Company
+//
+// Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License, Version 1.0 only
+// (the "License").  You may not use this file except in compliance
+// with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+// Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+// Copyright 2015 EveryCity Ltd. All rights reserved.
+// Copyright 2019 Joyent, Inc.
+
+// This file contains definitions designed to enable different compilers
+// to be used harmoniously on Solaris systems.
+
+// Allow for version tests for compiler bugs and features.
+
+// analogous to lint's PRINTFLIKEn
+
+// Handle the kernel printf routines that can take '%b' too
+
+// This one's pretty obvious -- the function never returns
+
+// The function is 'extern inline' and expects GNU C89 behaviour, not C99
+// behaviour.
+//
+// Should only be used on 'extern inline' definitions for GCC.
+
+// The function has control flow such that it may return multiple times (in
+// the manner of setjmp or vfork)
+
+// This is an appropriate label for functions that do not
+// modify their arguments, e.g. strlen()
+
+// This is a stronger form of __pure__. Can be used for functions
+// that do not modify their arguments and don't depend on global
+// memory.
+
+// This attribute, attached to a variable, means that the variable is meant to
+// be possibly unused. GCC will not produce a warning for this variable.
+
+// Shorthand versions for readability
+
+// In release build, disable warnings about variables
+// which are used only for debugging.
+
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+
+// Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+// Copyright 2016 Joyent, Inc.
+
+// This header file serves to group a set of well known defines and to
+// set these for each instruction set architecture.  These defines may
+// be divided into two groups;  characteristics of the processor and
+// implementation choices for Solaris on a processor.
+//
+// Processor Characteristics:
+//
+// _LITTLE_ENDIAN / _BIG_ENDIAN:
+//	The natural byte order of the processor.  A pointer to an int points
+//	to the least/most significant byte of that int.
+//
+// _STACK_GROWS_UPWARD / _STACK_GROWS_DOWNWARD:
+//	The processor specific direction of stack growth.  A push onto the
+//	stack increases/decreases the stack pointer, so it stores data at
+//	successively higher/lower addresses.  (Stackless machines ignored
+//	without regrets).
+//
+// _LONG_LONG_HTOL / _LONG_LONG_LTOH:
+//	A pointer to a long long points to the most/least significant long
+//	within that long long.
+//
+// _BIT_FIELDS_HTOL / _BIT_FIELDS_LTOH:
+//	The C compiler assigns bit fields from the high/low to the low/high end
+//	of an int (most to least significant vs. least to most significant).
+//
+// _IEEE_754:
+//	The processor (or supported implementations of the processor)
+//	supports the ieee-754 floating point standard.  No other floating
+//	point standards are supported (or significant).  Any other supported
+//	floating point formats are expected to be cased on the ISA processor
+//	symbol.
+//
+// _CHAR_IS_UNSIGNED / _CHAR_IS_SIGNED:
+//	The C Compiler implements objects of type `char' as `unsigned' or
+//	`signed' respectively.  This is really an implementation choice of
+//	the compiler writer, but it is specified in the ABI and tends to
+//	be uniform across compilers for an instruction set architecture.
+//	Hence, it has the properties of a processor characteristic.
+//
+// _CHAR_ALIGNMENT / _SHORT_ALIGNMENT / _INT_ALIGNMENT / _LONG_ALIGNMENT /
+// _LONG_LONG_ALIGNMENT / _DOUBLE_ALIGNMENT / _LONG_DOUBLE_ALIGNMENT /
+// _POINTER_ALIGNMENT / _FLOAT_ALIGNMENT:
+//	The ABI defines alignment requirements of each of the primitive
+//	object types.  Some, if not all, may be hardware requirements as
+// 	well.  The values are expressed in "byte-alignment" units.
+//
+// _MAX_ALIGNMENT:
+//	The most stringent alignment requirement as specified by the ABI.
+//	Equal to the maximum of all the above _XXX_ALIGNMENT values.
+//
+// _MAX_ALIGNMENT_TYPE:
+// 	The name of the C type that has the value descried in _MAX_ALIGNMENT.
+//
+// _ALIGNMENT_REQUIRED:
+//	True or false (1 or 0) whether or not the hardware requires the ABI
+//	alignment.
+//
+// _LONG_LONG_ALIGNMENT_32
+//	The 32-bit ABI supported by a 64-bit kernel may have different
+//	alignment requirements for primitive object types.  The value of this
+//	identifier is expressed in "byte-alignment" units.
+//
+// _HAVE_CPUID_INSN
+//	This indicates that the architecture supports the 'cpuid'
+//	instruction as defined by Intel.  (Intel allows other vendors
+//	to extend the instruction for their own purposes.)
+//
+//
+// Implementation Choices:
+//
+// _ILP32 / _LP64:
+//	This specifies the compiler data type implementation as specified in
+//	the relevant ABI.  The choice between these is strongly influenced
+//	by the underlying hardware, but is not absolutely tied to it.
+//	Currently only two data type models are supported:
+//
+//	_ILP32:
+//		Int/Long/Pointer are 32 bits.  This is the historical UNIX
+//		and Solaris implementation.  Due to its historical standing,
+//		this is the default case.
+//
+//	_LP64:
+//		Long/Pointer are 64 bits, Int is 32 bits.  This is the chosen
+//		implementation for 64-bit ABIs such as SPARC V9.
+//
+//	_I32LPx:
+//		A compilation environment where 'int' is 32-bit, and
+//		longs and pointers are simply the same size.
+//
+//	In all cases, Char is 8 bits and Short is 16 bits.
+//
+// _SUNOS_VTOC_8 / _SUNOS_VTOC_16 / _SVR4_VTOC_16:
+//	This specifies the form of the disk VTOC (or label):
+//
+//	_SUNOS_VTOC_8:
+//		This is a VTOC form which is upwardly compatible with the
+//		SunOS 4.x disk label and allows 8 partitions per disk.
+//
+//	_SUNOS_VTOC_16:
+//		In this format the incore vtoc image matches the ondisk
+//		version.  It allows 16 slices per disk, and is not
+//		compatible with the SunOS 4.x disk label.
+//
+//	Note that these are not the only two VTOC forms possible and
+//	additional forms may be added.  One possible form would be the
+//	SVr4 VTOC form.  The symbol for that is reserved now, although
+//	it is not implemented.
+//
+//	_SVR4_VTOC_16:
+//		This VTOC form is compatible with the System V Release 4
+//		VTOC (as implemented on the SVr4 Intel and 3b ports) with
+//		16 partitions per disk.
+//
+//
+// _DMA_USES_PHYSADDR / _DMA_USES_VIRTADDR
+//	This describes the type of addresses used by system DMA:
+//
+//	_DMA_USES_PHYSADDR:
+//		This type of DMA, used in the x86 implementation,
+//		requires physical addresses for DMA buffers.  The 24-bit
+//		addresses used by some legacy boards is the source of the
+//		"low-memory" (<16MB) requirement for some devices using DMA.
+//
+//	_DMA_USES_VIRTADDR:
+//		This method of DMA allows the use of virtual addresses for
+//		DMA transfers.
+//
+// _FIRMWARE_NEEDS_FDISK / _NO_FDISK_PRESENT
+//      This indicates the presence/absence of an fdisk table.
+//
+//      _FIRMWARE_NEEDS_FDISK
+//              The fdisk table is required by system firmware.  If present,
+//              it allows a disk to be subdivided into multiple fdisk
+//              partitions, each of which is equivalent to a separate,
+//              virtual disk.  This enables the co-existence of multiple
+//              operating systems on a shared hard disk.
+//
+//      _NO_FDISK_PRESENT
+//              If the fdisk table is absent, it is assumed that the entire
+//              media is allocated for a single operating system.
+//
+// _HAVE_TEM_FIRMWARE
+//	Defined if this architecture has the (fallback) option of
+//	using prom_* calls for doing I/O if a suitable kernel driver
+//	is not available to do it.
+//
+// _DONT_USE_1275_GENERIC_NAMES
+//		Controls whether or not device tree node names should
+//		comply with the IEEE 1275 "Generic Names" Recommended
+//		Practice. With _DONT_USE_GENERIC_NAMES, device-specific
+//		names identifying the particular device will be used.
+//
+// __i386_COMPAT
+//	This indicates whether the i386 ABI is supported as a *non-native*
+//	mode for the platform.  When this symbol is defined:
+//	-	32-bit xstat-style system calls are enabled
+//	-	32-bit xmknod-style system calls are enabled
+//	-	32-bit system calls use i386 sizes -and- alignments
+//
+//	Note that this is NOT defined for the i386 native environment!
+//
+// __x86
+//	This is ONLY a synonym for defined(__i386) || defined(__amd64)
+//	which is useful only insofar as these two architectures share
+//	common attributes.  Analogous to __sparc.
+//
+// _PSM_MODULES
+//	This indicates whether or not the implementation uses PSM
+//	modules for processor support, reading /etc/mach from inside
+//	the kernel to extract a list.
+//
+// _RTC_CONFIG
+//	This indicates whether or not the implementation uses /etc/rtc_config
+//	to configure the real-time clock in the kernel.
+//
+// _UNIX_KRTLD
+//	This indicates that the implementation uses a dynamically
+//	linked unix + krtld to form the core kernel image at boot
+//	time, or (in the absence of this symbol) a prelinked kernel image.
+//
+// _OBP
+//	This indicates the firmware interface is OBP.
+//
+// _SOFT_HOSTID
+//	This indicates that the implementation obtains the hostid
+//	from the file /etc/hostid, rather than from hardware.
+
+// The following set of definitions characterize Solaris on AMD's
+// 64-bit systems.
+
+// Define the appropriate "processor characteristics"
+
+// Different alignment constraints for the i386 ABI in compatibility mode
+
+// Define the appropriate "implementation choices".
+
+// The feature test macro __i386 is generic for all processors implementing
+// the Intel 386 instruction set or a superset of it.  Specifically, this
+// includes all members of the 386, 486, and Pentium family of processors.
+
+// Values of _POSIX_C_SOURCE
+//
+//		undefined   not a POSIX compilation
+//		1	    POSIX.1-1990 compilation
+//		2	    POSIX.2-1992 compilation
+//		199309L	    POSIX.1b-1993 compilation (Real Time)
+//		199506L	    POSIX.1c-1995 compilation (POSIX Threads)
+//		200112L	    POSIX.1-2001 compilation (Austin Group Revision)
+//		200809L     POSIX.1-2008 compilation
+
+// The feature test macros __XOPEN_OR_POSIX, _STRICT_STDC, _STRICT_SYMBOLS,
+// and _STDC_C99 are Sun implementation specific macros created in order to
+// compress common standards specified feature test macros for easier reading.
+// These macros should not be used by the application developer as
+// unexpected results may occur. Instead, the user should reference
+// standards(7) for correct usage of the standards feature test macros.
+//
+// __XOPEN_OR_POSIX     Used in cases where a symbol is defined by both
+//                      X/Open or POSIX or in the negative, when neither
+//                      X/Open or POSIX defines a symbol.
+//
+// _STRICT_STDC         __STDC__ is specified by the C Standards and defined
+//                      by the compiler. For Sun compilers the value of
+//                      __STDC__ is either 1, 0, or not defined based on the
+//                      compilation mode (see cc(1)). When the value of
+//                      __STDC__ is 1 and in the absence of any other feature
+//                      test macros, the namespace available to the application
+//                      is limited to only those symbols defined by the C
+//                      Standard. _STRICT_STDC provides a more readable means
+//                      of identifying symbols defined by the standard, or in
+//                      the negative, symbols that are extensions to the C
+//                      Standard. See additional comments for GNU C differences.
+//
+// _STDC_C99            __STDC_VERSION__ is specified by the C standards and
+//                      defined by the compiler and indicates the version of
+//                      the C standard. A value of 199901L indicates a
+//                      compiler that complies with ISO/IEC 9899:1999, other-
+//                      wise known as the C99 standard.
+//
+// _STDC_C11		Like _STDC_C99 except that the value of __STDC_VERSION__
+//                      is 201112L indicating a compiler that compiles with
+//                      ISO/IEC 9899:2011, otherwise known as the C11 standard.
+//
+// _STRICT_SYMBOLS	Used in cases where symbol visibility is restricted
+//                      by the standards, and the user has not explicitly
+//                      relaxed the strictness via __EXTENSIONS__.
+
+// ISO/IEC 9899:1990 and it's revisions, ISO/IEC 9899:1999 and ISO/IEC
+// 99899:2011 specify the following predefined macro name:
+//
+// __STDC__	The integer constant 1, intended to indicate a conforming
+//		implementation.
+//
+// Furthermore, a strictly conforming program shall use only those features
+// of the language and library specified in these standards. A conforming
+// implementation shall accept any strictly conforming program.
+//
+// Based on these requirements, Sun's C compiler defines __STDC__ to 1 for
+// strictly conforming environments and __STDC__ to 0 for environments that
+// use ANSI C semantics but allow extensions to the C standard. For non-ANSI
+// C semantics, Sun's C compiler does not define __STDC__.
+//
+// The GNU C project interpretation is that __STDC__ should always be defined
+// to 1 for compilation modes that accept ANSI C syntax regardless of whether
+// or not extensions to the C standard are used. Violations of conforming
+// behavior are conditionally flagged as warnings via the use of the
+// -pedantic option. In addition to defining __STDC__ to 1, the GNU C
+// compiler also defines __STRICT_ANSI__ as a means of specifying strictly
+// conforming environments using the -ansi or -std=<standard> options.
+//
+// In the absence of any other compiler options, Sun and GNU set the value
+// of __STDC__ as follows when using the following options:
+//
+//				Value of __STDC__  __STRICT_ANSI__
+//
+// cc -Xa (default)			0	      undefined
+// cc -Xt (transitional)		0             undefined
+// cc -Xc (strictly conforming)		1	      undefined
+// cc -Xs (K&R C)		    undefined	      undefined
+//
+// gcc (default)			1	      undefined
+// gcc -ansi, -std={c89, c99,...)	1               defined
+// gcc -traditional (K&R)	    undefined	      undefined
+//
+// The default compilation modes for Sun C compilers versus GNU C compilers
+// results in a differing value for __STDC__ which results in a more
+// restricted namespace when using Sun compilers. To allow both GNU and Sun
+// interpretations to peacefully co-exist, we use the following Sun
+// implementation _STRICT_STDC_ macro:
+
+// Compiler complies with ISO/IEC 9899:1999 or ISO/IEC 9989:2011
+
+// Use strict symbol visibility.
+
+// This is a variant of _STRICT_SYMBOLS that is meant to cover headers that are
+// governed by POSIX, but have not been governed by ISO C. One can go two ways
+// on what should happen if an application actively includes (not transitively)
+// a header that isn't part of the ISO C spec, we opt to say that if someone has
+// gone out of there way then they're doing it for a reason and that is an act
+// of non-compliance and therefore it's not up to us to hide away every symbol.
+//
+// In general, prefer using _STRICT_SYMBOLS, but this is here in particular for
+// cases where in the past we have only used a POSIX related check and we don't
+// wish to make something stricter. Often applications are relying on the
+// ability to, or more realistically unwittingly, have _STRICT_STDC declared and
+// still use these interfaces.
+
+// Large file interfaces:
+//
+//	_LARGEFILE_SOURCE
+//		1		large file-related additions to POSIX
+//				interfaces requested (fseeko, etc.)
+//	_LARGEFILE64_SOURCE
+//		1		transitional large-file-related interfaces
+//				requested (seek64, stat64, etc.)
+//
+// The corresponding announcement macros are respectively:
+//	_LFS_LARGEFILE
+//	_LFS64_LARGEFILE
+// (These are set in <unistd.h>.)
+//
+// Requesting _LARGEFILE64_SOURCE implies requesting _LARGEFILE_SOURCE as
+// well.
+//
+// The large file interfaces are made visible regardless of the initial values
+// of the feature test macros under certain circumstances:
+//    -	If no explicit standards-conforming environment is requested (neither
+//	of _POSIX_SOURCE nor _XOPEN_SOURCE is defined and the value of
+//	__STDC__ does not imply standards conformance).
+//    -	Extended system interfaces are explicitly requested (__EXTENSIONS__
+//	is defined).
+//    -	Access to in-kernel interfaces is requested (_KERNEL or _KMEMUSER is
+//	defined).  (Note that this dependency is an artifact of the current
+//	kernel implementation and may change in future releases.)
+
+// Large file compilation environment control:
+//
+// The setting of _FILE_OFFSET_BITS controls the size of various file-related
+// types and governs the mapping between file-related source function symbol
+// names and the corresponding binary entry points.
+//
+// In the 32-bit environment, the default value is 32; if not set, set it to
+// the default here, to simplify tests in other headers.
+//
+// In the 64-bit compilation environment, the only value allowed is 64.
+
+// Use of _XOPEN_SOURCE
+//
+// The following X/Open specifications are supported:
+//
+// X/Open Portability Guide, Issue 3 (XPG3)
+// X/Open CAE Specification, Issue 4 (XPG4)
+// X/Open CAE Specification, Issue 4, Version 2 (XPG4v2)
+// X/Open CAE Specification, Issue 5 (XPG5)
+// Open Group Technical Standard, Issue 6 (XPG6), also referred to as
+//    IEEE Std. 1003.1-2001 and ISO/IEC 9945:2002.
+// Open Group Technical Standard, Issue 7 (XPG7), also referred to as
+//    IEEE Std. 1003.1-2008 and ISO/IEC 9945:2009.
+//
+// XPG4v2 is also referred to as UNIX 95 (SUS or SUSv1).
+// XPG5 is also referred to as UNIX 98 or the Single Unix Specification,
+//     Version 2 (SUSv2)
+// XPG6 is the result of a merge of the X/Open and POSIX specifications
+//     and as such is also referred to as IEEE Std. 1003.1-2001 in
+//     addition to UNIX 03 and SUSv3.
+// XPG7 is also referred to as UNIX 08 and SUSv4.
+//
+// When writing a conforming X/Open application, as per the specification
+// requirements, the appropriate feature test macros must be defined at
+// compile time. These are as follows. For more info, see standards(7).
+//
+// Feature Test Macro				     Specification
+// ------------------------------------------------  -------------
+// _XOPEN_SOURCE                                         XPG3
+// _XOPEN_SOURCE && _XOPEN_VERSION = 4                   XPG4
+// _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED = 1           XPG4v2
+// _XOPEN_SOURCE = 500                                   XPG5
+// _XOPEN_SOURCE = 600  (or POSIX_C_SOURCE=200112L)      XPG6
+// _XOPEN_SOURCE = 700  (or POSIX_C_SOURCE=200809L)      XPG7
+//
+// In order to simplify the guards within the headers, the following
+// implementation private test macros have been created. Applications
+// must NOT use these private test macros as unexpected results will
+// occur.
+//
+// Note that in general, the use of these private macros is cumulative.
+// For example, the use of _XPG3 with no other restrictions on the X/Open
+// namespace will make the symbols visible for XPG3 through XPG6
+// compilation environments. The use of _XPG4_2 with no other X/Open
+// namespace restrictions indicates that the symbols were introduced in
+// XPG4v2 and are therefore visible for XPG4v2 through XPG6 compilation
+// environments, but not for XPG3 or XPG4 compilation environments.
+//
+// _XPG3    X/Open Portability Guide, Issue 3 (XPG3)
+// _XPG4    X/Open CAE Specification, Issue 4 (XPG4)
+// _XPG4_2  X/Open CAE Specification, Issue 4, Version 2 (XPG4v2/UNIX 95/SUS)
+// _XPG5    X/Open CAE Specification, Issue 5 (XPG5/UNIX 98/SUSv2)
+// _XPG6    Open Group Technical Standard, Issue 6 (XPG6/UNIX 03/SUSv3)
+// _XPG7    Open Group Technical Standard, Issue 7 (XPG7/UNIX 08/SUSv4)
+
+// X/Open Portability Guide, Issue 3
+
+// _XOPEN_VERSION is defined by the X/Open specifications and is not
+// normally defined by the application, except in the case of an XPG4
+// application.  On the implementation side, _XOPEN_VERSION defined with
+// the value of 3 indicates an XPG3 application. _XOPEN_VERSION defined
+// with the value of 4 indicates an XPG4 or XPG4v2 (UNIX 95) application.
+// _XOPEN_VERSION  defined with a value of 500 indicates an XPG5 (UNIX 98)
+// application and with a value of 600 indicates an XPG6 (UNIX 03)
+// application and with a value of 700 indicates an XPG7 (UNIX 08).
+// The appropriate version is determined by the use of the
+// feature test macros described earlier.  The value of _XOPEN_VERSION
+// defaults to 3 otherwise indicating support for XPG3 applications.
+
+// ANSI C and ISO 9899:1990 say the type long long doesn't exist in strictly
+// conforming environments.  ISO 9899:1999 says it does.
+//
+// The presence of _LONGLONG_TYPE says "long long exists" which is therefore
+// defined in all but strictly conforming environments that disallow it.
+
+// The following macro defines a value for the ISO C99 restrict
+// keyword so that _RESTRICT_KYWD resolves to "restrict" if
+// an ISO C99 compiler is used, "__restrict" for c++ and "" (null string)
+// if any other compiler is used. This allows for the use of single
+// prototype declarations regardless of compiler version.
+
+// The following macro defines a value for the ISO C11 _Noreturn
+// keyword so that _NORETURN_KYWD resolves to "_Noreturn" if
+// an ISO C11 compiler is used and "" (null string) if any other
+// compiler is used. This allows for the use of single prototype
+// declarations regardless of compiler version.
+
+// ISO/IEC 9899:2011 Annex K
+
+// The following macro indicates header support for the ANSI C++
+// standard.  The ISO/IEC designation for this is ISO/IEC FDIS 14882.
+
+// The following macro indicates header support for the C99 standard,
+// ISO/IEC 9899:1999, Programming Languages - C.
+
+// The following macro indicates header support for the C11 standard,
+// ISO/IEC 9899:2011, Programming Languages - C.
+
+// The following macro indicates header support for the C11 standard,
+// ISO/IEC 9899:2011 Annex K, Programming Languages - C.
+
+// The following macro indicates header support for DTrace. The value is an
+// integer that corresponds to the major version number for DTrace.
+
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License, Version 1.0 only
+// (the "License").  You may not use this file except in compliance
+// with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+//	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T
+//	  All Rights Reserved
+
+// Terminal definitions related to underlying hardware.
+
+// Speeds
+
+//	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T
+//	  All Rights Reserved
+
+// Copyright (c) 1982, 1986, 1993 Regents of the University of California.
+// All rights reserved.  The Berkeley software License Agreement
+// specifies the terms and conditions for redistribution.
+
+// Copyright 2014 Garrett D'Amore <garrett@damore.org>
+//
+// Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+//
+// Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
+// Copyright 2016 Joyent, Inc.
+// Copyright 2020 OmniOS Community Edition (OmniOSce) Association.
+
+// Copyright (c) 2013, 2016 by Delphix. All rights reserved.
+
+//  DO NOT EDIT THIS FILE.
+//
+//     It has been auto-edited by fixincludes from:
+//
+// 	"/usr/include/sys/feature_tests.h"
+//
+//     This had to be done to correct non-standard usages in the
+//     original, manufacturer supplied header file.
+
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+
+// Copyright 2013 Garrett D'Amore <garrett@damore.org>
+// Copyright 2016 Joyent, Inc.
+// Copyright 2022 Oxide Computer Company
+//
+// Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+
+// Structure returned by gettimeofday(2) system call,
+// and used in other calls.
+
+type Time_t = int64 /* time.h:46:14 */ // time of day in seconds
+
+type Suseconds_t = int64 /* time.h:51:14 */ // signed # of microseconds
+
+type Timeval = struct {
+	Ftv_sec  int64
+	Ftv_usec int64
+} /* time.h:54:1 */
+
+type Timezone = struct {
+	Ftz_minuteswest int32
+	Ftz_dsttime     int32
+} /* time.h:86:1 */
+
+// Needed for longlong_t type.  Placement of this due to <sys/types.h>
+// including <sys/select.h> which relies on the presense of the itimerval
+// structure.
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+//	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T
+//	  All Rights Reserved
+
+// Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+//
+// Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
+// Copyright 2016 Joyent, Inc.
+// Copyright 2021 Oxide Computer Company
+
+//  DO NOT EDIT THIS FILE.
+//
+//     It has been auto-edited by fixincludes from:
+//
+// 	"/usr/include/sys/feature_tests.h"
+//
+//     This had to be done to correct non-standard usages in the
+//     original, manufacturer supplied header file.
+
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+
+// Copyright 2013 Garrett D'Amore <garrett@damore.org>
+// Copyright 2016 Joyent, Inc.
+// Copyright 2022 Oxide Computer Company
+//
+// Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+
+// Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+// Copyright 2016 Joyent, Inc.
+
+// Machine dependent definitions moved to <sys/machtypes.h>.
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+// Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+
+// Machine dependent types:
+//
+//	intel ia32 Version
+
+type X_label_t = struct{ Fval [8]int64 } /* machtypes.h:59:9 */
+
+// Needed for longlong_t type.  Placement of this due to <sys/types.h>
+// including <sys/select.h> which relies on the presense of the itimerval
+// structure.
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+//	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T
+//	  All Rights Reserved
+
+// Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+//
+// Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
+// Copyright 2016 Joyent, Inc.
+// Copyright 2021 Oxide Computer Company
+
+//  DO NOT EDIT THIS FILE.
+//
+//     It has been auto-edited by fixincludes from:
+//
+// 	"/usr/include/sys/feature_tests.h"
+//
+//     This had to be done to correct non-standard usages in the
+//     original, manufacturer supplied header file.
+
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+
+// Copyright 2013 Garrett D'Amore <garrett@damore.org>
+// Copyright 2016 Joyent, Inc.
+// Copyright 2022 Oxide Computer Company
+//
+// Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+
+// Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+// Copyright 2016 Joyent, Inc.
+
+// Machine dependent definitions moved to <sys/machtypes.h>.
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+// Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+
+// Machine dependent types:
+//
+//	intel ia32 Version
+
+type Label_t = X_label_t /* machtypes.h:59:54 */
+
+type Lock_t = uint8 /* machtypes.h:63:23 */ // lock work for busy wait
+
+// Include fixed width type declarations proposed by the ISO/JTC1/SC22/WG14 C
+// committee's working draft for the revision of the current ISO C standard,
+// ISO/IEC 9899:1990 Programming language - C.  These are not currently
+// required by any standard but constitute a useful, general purpose set
+// of type definitions which is namespace clean with respect to all standards.
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License, Version 1.0 only
+// (the "License").  You may not use this file except in compliance
+// with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+// Copyright 2014 Garrett D'Amore <garrett@damore.org>
+//
+// Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+
+// This file, <sys/int_types.h>, is part of the Sun Microsystems implementation
+// of <inttypes.h> defined in the ISO C standard, ISO/IEC 9899:1999
+// Programming language - C.
+//
+// Programs/Modules should not directly include this file.  Access to the
+// types defined in this file should be through the inclusion of one of the
+// following files:
+//
+//	<sys/types.h>		Provides only the "_t" types defined in this
+//				file which is a subset of the contents of
+//				<inttypes.h>.  (This can be appropriate for
+//				all programs/modules except those claiming
+//				ANSI-C conformance.)
+//
+//	<sys/inttypes.h>	Provides the Kernel and Driver appropriate
+//				components of <inttypes.h>.
+//
+//	<inttypes.h>		For use by applications.
+//
+// See these files for more details.
+
+//  DO NOT EDIT THIS FILE.
+//
+//     It has been auto-edited by fixincludes from:
+//
+// 	"/usr/include/sys/feature_tests.h"
+//
+//     This had to be done to correct non-standard usages in the
+//     original, manufacturer supplied header file.
+
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+
+// Copyright 2013 Garrett D'Amore <garrett@damore.org>
+// Copyright 2016 Joyent, Inc.
+// Copyright 2022 Oxide Computer Company
+//
+// Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+
+// Basic / Extended integer types
+//
+// The following defines the basic fixed-size integer types.
+//
+// Implementations are free to typedef them to Standard C integer types or
+// extensions that they support. If an implementation does not support one
+// of the particular integer data types below, then it should not define the
+// typedefs and macros corresponding to that data type.  Note that int8_t
+// is not defined in -Xs mode on ISAs for which the ABI specifies "char"
+// as an unsigned entity because there is no way to define an eight bit
+// signed integral.
+type Int8_t = int8   /* int_types.h:75:16 */
+type Int16_t = int16 /* int_types.h:79:17 */
+type Int32_t = int32 /* int_types.h:80:15 */
+type Int64_t = int64 /* int_types.h:83:16 */
+
+type Uint8_t = uint8   /* int_types.h:91:24 */
+type Uint16_t = uint16 /* int_types.h:92:25 */
+type Uint32_t = uint32 /* int_types.h:93:23 */
+type Uint64_t = uint64 /* int_types.h:95:24 */
+
+// intmax_t and uintmax_t are to be the longest (in number of bits) signed
+// and unsigned integer types supported by the implementation.
+type Intmax_t = int64   /* int_types.h:107:19 */
+type Uintmax_t = uint64 /* int_types.h:108:19 */
+
+// intptr_t and uintptr_t are signed and unsigned integer types large enough
+// to hold any data pointer; that is, data pointers can be assigned into or
+// from these integer types without losing precision.
+type Intptr_t = int64   /* int_types.h:120:16 */
+type Uintptr_t = uint64 /* int_types.h:121:24 */
+
+// The following define the fastest integer types that can hold the
+// specified number of bits.
+type Int_fast8_t = int8   /* int_types.h:132:16 */
+type Int_fast16_t = int32 /* int_types.h:136:15 */
+type Int_fast32_t = int32 /* int_types.h:137:15 */
+type Int_fast64_t = int64 /* int_types.h:139:16 */
+
+type Uint_fast8_t = uint8   /* int_types.h:146:24 */
+type Uint_fast16_t = uint32 /* int_types.h:147:23 */
+type Uint_fast32_t = uint32 /* int_types.h:148:23 */
+type Uint_fast64_t = uint64 /* int_types.h:150:24 */
+
+// The following define the smallest integer types that can hold the
+// specified number of bits.
+type Int_least8_t = int8   /* int_types.h:162:16 */
+type Int_least16_t = int16 /* int_types.h:166:17 */
+type Int_least32_t = int32 /* int_types.h:167:15 */
+type Int_least64_t = int64 /* int_types.h:169:16 */
+
+// If these are changed, please update char16_t and char32_t in head/uchar.h.
+type Uint_least8_t = uint8   /* int_types.h:179:24 */
+type Uint_least16_t = uint16 /* int_types.h:180:25 */
+type Uint_least32_t = uint32 /* int_types.h:181:23 */
+type Uint_least64_t = uint64 /* int_types.h:183:24 */
+
+// Strictly conforming ANSI C environments prior to the 1999
+// revision of the C Standard (ISO/IEC 9899:1999) do not have
+// the long long data type.
+type Longlong_t = int64    /* types.h:72:20 */
+type U_longlong_t = uint64 /* types.h:73:28 */
+
+// These types (t_{u}scalar_t) exist because the XTI/TPI/DLPI standards had
+// to use them instead of int32_t and uint32_t because DEC had
+// shipped 64-bit wide.
+type T_scalar_t = int32   /* types.h:92:18 */
+type T_uscalar_t = uint32 /* types.h:93:18 */
+
+// POSIX Extensions
+type Uchar_t = uint8   /* types.h:102:23 */
+type Ushort_t = uint16 /* types.h:103:24 */
+type Uint_t = uint32   /* types.h:104:22 */
+type Ulong_t = uint64  /* types.h:105:23 */
+
+type Caddr_t = uintptr /* types.h:107:15 */ // ?<core address> type
+type Daddr_t = int64   /* types.h:108:15 */ // <disk address> type
+type Cnt_t = int16     /* types.h:109:16 */ // pointer difference
+
+// VM-related types
+type Pfn_t = uint64   /* types.h:123:18 */ // page frame number
+type Pgcnt_t = uint64 /* types.h:124:18 */ // number of pages
+type Spgcnt_t = int64 /* types.h:125:15 */ // signed number of pages
+
+type Use_t = uint8          /* types.h:127:18 */ // use count for swap.
+type Sysid_t = int16        /* types.h:128:16 */
+type Index_t = int16        /* types.h:129:16 */
+type Timeout_id_t = uintptr /* types.h:130:15 */ // opaque handle from timeout(9F)
+type Bufcall_id_t = uintptr /* types.h:131:15 */ // opaque handle from bufcall(9F)
+
+// The size of off_t and related types depends on the setting of
+// _FILE_OFFSET_BITS.  (Note that other system headers define other types
+// related to those defined here.)
+//
+// If _LARGEFILE64_SOURCE is defined, variants of these types that are
+// explicitly 64 bits wide become available.
+
+type Off_t = int64 /* types.h:145:15 */ // offsets within files
+
+type Off64_t = int64 /* types.h:152:16 */ // offsets within files
+
+type Ino_t = uint64      /* types.h:161:18 */ // expanded inode type
+type Blkcnt_t = int64    /* types.h:162:15 */ // count of file blocks
+type Fsblkcnt_t = uint64 /* types.h:163:18 */ // count of file system blocks
+type Fsfilcnt_t = uint64 /* types.h:164:18 */ // count of files
+
+type Ino64_t = uint64      /* types.h:174:16 */ // expanded inode type
+type Blkcnt64_t = int64    /* types.h:175:18 */ // count of file blocks
+type Fsblkcnt64_t = uint64 /* types.h:176:20 */ // count of file system blocks
+type Fsfilcnt64_t = uint64 /* types.h:177:20 */ // count of files
+
+type Blksize_t = int32 /* types.h:187:14 */ // used for block sizes
+
+// The boolean_t type has had a varied amount of exposure over the years in
+// terms of how its enumeration constants have been exposed. In particular, it
+// originally used the __XOPEN_OR_POSIX macro to determine whether to prefix the
+// B_TRUE and B_FALSE with an underscore. This check never included the
+// question of if we were in a strict ANSI C environment or whether extensions
+// were defined.
+//
+// Compilers such as clang started defaulting to always including an
+// XOPEN_SOURCE declaration on behalf of users, but also noted __EXTENSIONS__.
+// This would lead most software that had used the non-underscore versions to
+// need it. As such, we have adjusted the non-strict XOPEN environment to retain
+// its old behavior so as to minimize namespace pollution; however, we instead
+// include both variants of the definitions in the generally visible version
+// allowing software written in either world to hopefully end up in a good
+// place.
+//
+// This isn't perfect, but should hopefully minimize the pain for folks actually
+// trying to build software.
+type Boolean_t = uint32 /* types.h:215:69 */
+
+// The {u,}pad64_t types can be used in structures such that those structures
+// may be accessed by code produced by compilation environments which don't
+// support a 64 bit integral datatype.  The intention is not to allow
+// use of these fields in such environments, but to maintain the alignment
+// and offsets of the structure.
+//
+// Similar comments for {u,}pad128_t.
+//
+// Note that these types do NOT generate any stronger alignment constraints
+// than those available in the underlying ABI.  See <sys/isa_defs.h>
+type Pad64_t = int64   /* types.h:240:18 */
+type Upad64_t = uint64 /* types.h:241:18 */
+
+type Pad128_t = struct {
+	F_q          float64
+	F__ccgo_pad1 [8]byte
+} /* types.h:257:3 */
+
+type Upad128_t = struct {
+	F_q          float64
+	F__ccgo_pad1 [8]byte
+} /* types.h:262:3 */
+
+type Offset_t = int64    /* types.h:264:20 */
+type U_offset_t = uint64 /* types.h:265:22 */
+type Len_t = uint64      /* types.h:266:22 */
+type Diskaddr_t = uint64 /* types.h:267:22 */
+
+// Definitions remaining from previous partial support for 64-bit file
+// offsets.  This partial support for devices greater than 2gb requires
+// compiler support for long long.
+type Lloff_t = struct{ F_f int64 } /* types.h:284:3 */
+
+type Lldaddr_t = struct{ F_f int64 } /* types.h:304:3 */
+
+type K_fltset_t = uint32 /* types.h:317:16 */ // kernel fault set type
+
+// The following type is for various kinds of identifiers.  The
+// actual type must be the same for all since some system calls
+// (such as sigsend) take arguments that may be any of these
+// types.  The enumeration type idtype_t defined in sys/procset.h
+// is used to indicate what type of id is being specified --
+// a process id, process group id, session id, scheduling class id,
+// user id, group id, project id, task id or zone id.
+type Id_t = int32 /* types.h:329:14 */
+
+type Lgrp_id_t = int32 /* types.h:334:15 */ // lgroup ID
+
+// Type useconds_t is an unsigned integral type capable of storing
+// values at least in the range of zero to 1,000,000.
+type Useconds_t = uint32 /* types.h:340:17 */ // Time, in microseconds
+
+// Typedefs for dev_t components.
+type Major_t = uint32 /* types.h:351:16 */ // major part of device number
+type Minor_t = uint32 /* types.h:352:16 */ // minor part of device number
+
+// The data type of a thread priority.
+type Pri_t = int16 /* types.h:361:15 */
+
+// The data type for a CPU flags field.  (Can be extended to larger unsigned
+// types, if needed, limited by ability to update atomically.)
+type Cpu_flag_t = uint16 /* types.h:367:18 */
+
+// For compatibility reasons the following typedefs (prefixed o_)
+// can't grow regardless of the EFT definition. Although,
+// applications should not explicitly use these typedefs
+// they may be included via a system header definition.
+// WARNING: These typedefs may be removed in a future
+// release.
+//
+//	ex. the definitions in s5inode.h (now obsoleted)
+//		remained small to preserve compatibility
+//		in the S5 file system type.
+type O_mode_t = uint16 /* types.h:380:18 */ // old file attribute type
+type O_dev_t = int16   /* types.h:381:15 */ // old device type
+type O_uid_t = uint16  /* types.h:382:18 */ // old UID type
+type O_gid_t = uint16  /* types.h:383:17 */ // old GID type
+type O_nlink_t = int16 /* types.h:384:15 */ // old file link type
+type O_pid_t = int16   /* types.h:385:15 */ // old process id type
+type O_ino_t = uint16  /* types.h:386:18 */ // old inode type
+
+// POSIX and XOPEN Declarations
+type Key_t = int32   /* types.h:392:13 */ // IPC key type
+type Mode_t = uint32 /* types.h:394:16 */ // file attribute type
+
+type Uid_t = uint32 /* types.h:401:22 */ // UID type
+
+type Gid_t = uint32 /* types.h:404:15 */ // GID type
+
+type Datalink_id_t = uint32 /* types.h:406:18 */
+type Vrid_t = uint32        /* types.h:407:18 */
+
+type Taskid_t = int32 /* types.h:409:17 */
+type Projid_t = int32 /* types.h:410:17 */
+type Poolid_t = int32 /* types.h:411:14 */
+type Zoneid_t = int32 /* types.h:412:14 */
+type Ctid_t = int32   /* types.h:413:14 */
+
+// POSIX definitions are same as defined in thread.h and synch.h.
+// Any changes made to here should be reflected in corresponding
+// files as described in comments.
+type Pthread_t = uint32     /* types.h:420:16 */ // = thread_t in thread.h
+type Pthread_key_t = uint32 /* types.h:421:16 */ // = thread_key_t in thread.h
+
+// "Magic numbers" tagging synchronization object types
+
+type X_pthread_mutex = struct {
+	F__pthread_mutex_flags struct {
+		F__pthread_mutex_flag1   uint16
+		F__pthread_mutex_flag2   uint8
+		F__pthread_mutex_ceiling uint8
+		F__pthread_mutex_type    uint16
+		F__pthread_mutex_magic   uint16
+	}
+	F__pthread_mutex_lock struct {
+		F__ccgo_pad1            [0]uint64
+		F__pthread_mutex_lock64 struct{ F__pthread_mutex_pad [8]uint8 }
+	}
+	F__pthread_mutex_data uint64
+} /* types.h:429:9 */
+
+// = thread_key_t in thread.h
+
+// "Magic numbers" tagging synchronization object types
+
+type Pthread_mutex_t = X_pthread_mutex /* types.h:448:3 */
+
+type X_pthread_cond = struct {
+	F__pthread_cond_flags struct {
+		F__pthread_cond_flag  [4]uint8
+		F__pthread_cond_type  uint16
+		F__pthread_cond_magic uint16
+	}
+	F__pthread_cond_data uint64
+} /* types.h:450:9 */
+
+type Pthread_cond_t = X_pthread_cond /* types.h:457:3 */
+
+// UNIX 98 Extension
+type X_pthread_rwlock = struct {
+	F__pthread_rwlock_readers  int32
+	F__pthread_rwlock_type     uint16
+	F__pthread_rwlock_magic    uint16
+	F__pthread_rwlock_mutex    Pthread_mutex_t
+	F__pthread_rwlock_readercv Pthread_cond_t
+	F__pthread_rwlock_writercv Pthread_cond_t
+} /* types.h:462:9 */
+
+// UNIX 98 Extension
+type Pthread_rwlock_t = X_pthread_rwlock /* types.h:469:3 */
+
+// SUSV3
+type Pthread_barrier_t = struct {
+	F__pthread_barrier_count    uint32
+	F__pthread_barrier_current  uint32
+	F__pthread_barrier_cycle    uint64
+	F__pthread_barrier_reserved uint64
+	F__pthread_barrier_lock     Pthread_mutex_t
+	F__pthread_barrier_cond     Pthread_cond_t
+} /* types.h:481:3 */
+
+type Pthread_spinlock_t = Pthread_mutex_t /* types.h:483:25 */
+
+// attributes for threads, dynamically allocated by library
+type X_pthread_attr = struct{ F__pthread_attrp uintptr } /* types.h:488:9 */
+
+// attributes for threads, dynamically allocated by library
+type Pthread_attr_t = X_pthread_attr /* types.h:490:3 */
+
+// attributes for mutex, dynamically allocated by library
+type X_pthread_mutexattr = struct{ F__pthread_mutexattrp uintptr } /* types.h:495:9 */
+
+// attributes for mutex, dynamically allocated by library
+type Pthread_mutexattr_t = X_pthread_mutexattr /* types.h:497:3 */
+
+// attributes for cond, dynamically allocated by library
+type X_pthread_condattr = struct{ F__pthread_condattrp uintptr } /* types.h:502:9 */
+
+// attributes for cond, dynamically allocated by library
+type Pthread_condattr_t = X_pthread_condattr /* types.h:504:3 */
+
+// pthread_once
+type X_once = struct{ F__pthread_once_pad [4]uint64 } /* types.h:509:9 */
+
+// pthread_once
+type Pthread_once_t = X_once /* types.h:511:3 */
+
+// UNIX 98 Extensions
+// attributes for rwlock, dynamically allocated by library
+type X_pthread_rwlockattr = struct{ F__pthread_rwlockattrp uintptr } /* types.h:517:9 */
+
+// UNIX 98 Extensions
+// attributes for rwlock, dynamically allocated by library
+type Pthread_rwlockattr_t = X_pthread_rwlockattr /* types.h:519:3 */
+
+// SUSV3
+// attributes for pthread_barrier_t, dynamically allocated by library
+type Pthread_barrierattr_t = struct{ F__pthread_barrierattrp uintptr } /* types.h:527:3 */
+
+type Dev_t = uint64 /* types.h:529:17 */ // expanded device type
+
+type Nlink_t = uint32 /* types.h:532:16 */ // file link type
+type Pid_t = int32    /* types.h:533:13 */ // size of something in bytes
+
+type Ssize_t = int64 /* types.h:551:14 */ // size of something in bytes or -1
+
+type Clock_t = int64 /* types.h:564:15 */ // relative time in a specified resolution
+
+type Clockid_t = int32 /* types.h:569:13 */ // clock identifier type
+
+type Timer_t = int32 /* types.h:574:13 */ // timer identifier type
+
+// BEGIN CSTYLED
+type Unchar = uint8  /* types.h:580:23 */
+type Ushort = uint16 /* types.h:581:24 */
+type Uint = uint32   /* types.h:582:22 */
+type Ulong = uint64  /* types.h:583:23 */
+// END CSTYLED
+
+// The following is the value of type id_t to use to indicate the
+// caller's current id.  See procset.h for the type idtype_t
+// which defines which kind of id is being specified.
+
+// The following value of type pfn_t is used to indicate
+// invalid page frame number.
+
+// BEGIN CSTYLED
+type U_char = uint8                   /* types.h:650:23 */
+type U_short = uint16                 /* types.h:651:24 */
+type U_int = uint32                   /* types.h:652:22 */
+type U_long = uint64                  /* types.h:653:23 */
+type X_quad = struct{ Fval [2]int32 } /* types.h:654:9 */
+
+type Quad_t = X_quad /* types.h:654:38 */ // used by UFS
+type Quad = Quad_t   /* types.h:655:17 */ // used by UFS
+// END CSTYLED
+
+// Nested include for BSD/sockets source compatibility.
+// (The select macros used to be defined here).
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+
+// Copyright 2014 Garrett D'Amore <garrett@damore.org>
+//
+// Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
+//
+// Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+
+//	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T
+//	  All Rights Reserved
+
+// University Copyright- Copyright (c) 1982, 1986, 1988
+// The Regents of the University of California
+// All Rights Reserved
+//
+// University Acknowledgment- Portions of this document are derived from
+// software developed by the University of California, Berkeley, and its
+// contributors.
+
+//  DO NOT EDIT THIS FILE.
+//
+//     It has been auto-edited by fixincludes from:
+//
+// 	"/usr/include/sys/feature_tests.h"
+//
+//     This had to be done to correct non-standard usages in the
+//     original, manufacturer supplied header file.
+
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+
+// Copyright 2013 Garrett D'Amore <garrett@damore.org>
+// Copyright 2016 Joyent, Inc.
+// Copyright 2022 Oxide Computer Company
+//
+// Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License, Version 1.0 only
+// (the "License").  You may not use this file except in compliance
+// with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+// Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+
+// Implementation-private.  This header should not be included
+// directly by an application.  The application should instead
+// include <time.h> which includes this header conditionally
+// depending on which feature test macros are defined. By default,
+// this header is included by <time.h>.  X/Open and POSIX
+// standards requirements result in this header being included
+// by <time.h> only under a restricted set of conditions.
+
+//  DO NOT EDIT THIS FILE.
+//
+//     It has been auto-edited by fixincludes from:
+//
+// 	"/usr/include/sys/feature_tests.h"
+//
+//     This had to be done to correct non-standard usages in the
+//     original, manufacturer supplied header file.
+
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+
+// Copyright 2013 Garrett D'Amore <garrett@damore.org>
+// Copyright 2016 Joyent, Inc.
+// Copyright 2022 Oxide Computer Company
+//
+// Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+
+// Time expressed in seconds and nanoseconds
+
+type Timespec = struct {
+	Ftv_sec  int64
+	Ftv_nsec int64
+} /* time_impl.h:57:9 */
+
+// used by UFS
+// END CSTYLED
+
+// Nested include for BSD/sockets source compatibility.
+// (The select macros used to be defined here).
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+
+// Copyright 2014 Garrett D'Amore <garrett@damore.org>
+//
+// Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
+//
+// Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+
+//	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T
+//	  All Rights Reserved
+
+// University Copyright- Copyright (c) 1982, 1986, 1988
+// The Regents of the University of California
+// All Rights Reserved
+//
+// University Acknowledgment- Portions of this document are derived from
+// software developed by the University of California, Berkeley, and its
+// contributors.
+
+//  DO NOT EDIT THIS FILE.
+//
+//     It has been auto-edited by fixincludes from:
+//
+// 	"/usr/include/sys/feature_tests.h"
+//
+//     This had to be done to correct non-standard usages in the
+//     original, manufacturer supplied header file.
+
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+
+// Copyright 2013 Garrett D'Amore <garrett@damore.org>
+// Copyright 2016 Joyent, Inc.
+// Copyright 2022 Oxide Computer Company
+//
+// Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License, Version 1.0 only
+// (the "License").  You may not use this file except in compliance
+// with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+// Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+
+// Implementation-private.  This header should not be included
+// directly by an application.  The application should instead
+// include <time.h> which includes this header conditionally
+// depending on which feature test macros are defined. By default,
+// this header is included by <time.h>.  X/Open and POSIX
+// standards requirements result in this header being included
+// by <time.h> only under a restricted set of conditions.
+
+//  DO NOT EDIT THIS FILE.
+//
+//     It has been auto-edited by fixincludes from:
+//
+// 	"/usr/include/sys/feature_tests.h"
+//
+//     This had to be done to correct non-standard usages in the
+//     original, manufacturer supplied header file.
+
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+
+// Copyright 2013 Garrett D'Amore <garrett@damore.org>
+// Copyright 2016 Joyent, Inc.
+// Copyright 2022 Oxide Computer Company
+//
+// Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+
+// Time expressed in seconds and nanoseconds
+
+type Timespec_t = Timespec /* time_impl.h:60:3 */
+
+type Timestruc_t = Timespec /* time_impl.h:81:25 */ // definition per SVr4
+
+// The following has been left in for backward compatibility. Portable
+// applications should not use the structure name timestruc.
+
+// Timer specification
+type Itimerspec = struct {
+	Fit_interval struct {
+		Ftv_sec  int64
+		Ftv_nsec int64
+	}
+	Fit_value struct {
+		Ftv_sec  int64
+		Ftv_nsec int64
+	}
+} /* time_impl.h:95:9 */
+
+// definition per SVr4
+
+// The following has been left in for backward compatibility. Portable
+// applications should not use the structure name timestruc.
+
+// Timer specification
+type Itimerspec_t = Itimerspec /* time_impl.h:98:3 */
+
+//	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T
+//	  All Rights Reserved
+
+// Copyright (c) 1982, 1986, 1993 Regents of the University of California.
+// All rights reserved.  The Berkeley software License Agreement
+// specifies the terms and conditions for redistribution.
+
+// Copyright 2014 Garrett D'Amore <garrett@damore.org>
+//
+// Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+//
+// Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
+// Copyright 2016 Joyent, Inc.
+// Copyright 2020 OmniOS Community Edition (OmniOSce) Association.
+
+// Copyright (c) 2013, 2016 by Delphix. All rights reserved.
+
+// The sigset_t type is defined in <sys/signal.h> and duplicated
+// in <sys/ucontext.h> as a result of XPG4v2 requirements. XPG6
+// now allows the visibility of signal.h in this header, however
+// an order of inclusion problem occurs as a result of inclusion
+// of <sys/select.h> in <signal.h> under certain conditions.
+// Rather than include <sys/signal.h> here, we've duplicated
+// the sigset_t type instead. This type is required for the XPG6
+// introduced pselect() function also declared in this header.
+type Sigset_t = struct{ F__sigbits [4]uint32 } /* select.h:76:3 */
+
+// Select uses bit masks of file descriptors in longs.
+// These macros manipulate such bit fields.
+// FD_SETSIZE may be defined by the user, but the default here
+// should be >= RLIM_FD_MAX.
+
+type Fd_mask = int64  /* select.h:92:14 */
+type Fds_mask = int64 /* select.h:94:14 */
+
+//  The value of _NBBY needs to be consistant with the value
+//  of NBBY in <sys/param.h>.
+
+type Fd_set1 = struct{ Ffds_bits [1024]int64 } /* select.h:120:9 */
+
+//  The value of _NBBY needs to be consistant with the value
+//  of NBBY in <sys/param.h>.
+
+type Fd_set = Fd_set1 /* select.h:125:3 */
+
+// _VOID was defined to be either void or char but this is not
+// required because previous SunOS compilers have accepted the void
+// type. However, because many system header and source files use the
+// void keyword, the volatile keyword, and ANSI C function prototypes,
+// non-ANSI compilers cannot compile the system anyway. The _VOID macro
+// should therefore not be used and remains for source compatibility
+// only.
+// CSTYLED
+
+// Operations on timevals.
+
+// Names of the interval timers, and structure
+// defining a timer setting.
+// time and when system is running on
+// behalf of the process.
+// time profiling of multithreaded
+// programs.
+
+type Itimerval = struct {
+	Fit_interval struct {
+		Ftv_sec  int64
+		Ftv_usec int64
+	}
+	Fit_value struct {
+		Ftv_sec  int64
+		Ftv_usec int64
+	}
+} /* time.h:209:1 */
+
+//	Definitions for commonly used resolutions.
+
+// Time expressed as a 64-bit nanosecond counter.
+type Hrtime_t = int64 /* time.h:265:20 */
+
+// The inclusion of <time.h> is historical and was added for
+// backward compatibility in delta 1.2 when a number of definitions
+// were moved out of <sys/time.h>.  More recently, the timespec and
+// itimerspec structure definitions, along with the _CLOCK_*, CLOCK_*,
+// _TIMER_*, and TIMER_* symbols were moved to <sys/time_impl.h>,
+// which is now included by <time.h>.  This change was due to POSIX
+// 1003.1b-1993 and X/Open UNIX 98 requirements.  For non-POSIX and
+// non-X/Open applications, including this header will still make
+// visible these definitions.
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+//	Copyright (c) 1988 AT&T
+//	  All Rights Reserved
+
+// Copyright 2014 Garrett D'Amore <garrett@damore.org>
+//
+// Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+// Copyright 2010 Nexenta Systems, Inc.  Al rights reserved.
+// Copyright 2016 Joyent, Inc.
+
+//  DO NOT EDIT THIS FILE.
+//
+//     It has been auto-edited by fixincludes from:
+//
+// 	"/usr/include/sys/feature_tests.h"
+//
+//     This had to be done to correct non-standard usages in the
+//     original, manufacturer supplied header file.
+
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+
+// Copyright 2013 Garrett D'Amore <garrett@damore.org>
+// Copyright 2016 Joyent, Inc.
+// Copyright 2022 Oxide Computer Company
+//
+// Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License, Version 1.0 only
+// (the "License").  You may not use this file except in compliance
+// with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+//	Copyright (c) 1988 AT&T
+//	  All Rights Reserved
+
+// Copyright 2014 Garrett D'Amore <garrett@damore.org>
+// Copyright 2014 PALO, Richard.
+//
+// Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+
+// An application should not include this header directly.  Instead it
+// should be included only through the inclusion of other Sun headers.
+//
+// The contents of this header is limited to identifiers specified in the
+// C Standard.  Any new identifiers specified in future amendments to the
+// C Standard must be placed in this header.  If these new identifiers
+// are required to also be in the C++ Standard "std" namespace, then for
+// anything other than macro definitions, corresponding "using" directives
+// must also be added to <time.h.h>.
+
+//  DO NOT EDIT THIS FILE.
+//
+//     It has been auto-edited by fixincludes from:
+//
+// 	"/usr/include/sys/feature_tests.h"
+//
+//     This had to be done to correct non-standard usages in the
+//     original, manufacturer supplied header file.
+
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+
+// Copyright 2013 Garrett D'Amore <garrett@damore.org>
+// Copyright 2016 Joyent, Inc.
+// Copyright 2022 Oxide Computer Company
+//
+// Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+
+// This file and its contents are supplied under the terms of the
+// Common Development and Distribution License ("CDDL"), version 1.0.
+// You may only use this file in accordance with the terms of version
+// 1.0 of the CDDL.
+//
+// A full copy of the text of the CDDL should have accompanied this
+// source.  A copy of the CDDL is also available via the Internet at
+// http://www.illumos.org/license/CDDL.
+
+// Copyright 2014-2016 PALO, Richard.
+
+//  DO NOT EDIT THIS FILE.
+//
+//     It has been auto-edited by fixincludes from:
+//
+// 	"/usr/include/sys/feature_tests.h"
+//
+//     This had to be done to correct non-standard usages in the
+//     original, manufacturer supplied header file.
+
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+
+// Copyright 2013 Garrett D'Amore <garrett@damore.org>
+// Copyright 2016 Joyent, Inc.
+// Copyright 2022 Oxide Computer Company
+//
+// Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+
+// POSIX.1-2008 requires that the NULL macro be cast to type void *.
+
+type Tm = struct {
+	Ftm_sec   int32
+	Ftm_min   int32
+	Ftm_hour  int32
+	Ftm_mday  int32
+	Ftm_mon   int32
+	Ftm_year  int32
+	Ftm_wday  int32
+	Ftm_yday  int32
+	Ftm_isdst int32
+} /* time_iso.h:80:1 */
+
+// Neither X/Open nor POSIX allow the inclusion of <signal.h> for the
+// definition of the sigevent structure.  Both require the inclusion
+// of <signal.h> and <time.h> when using the timer_create() function.
+// However, X/Open also specifies that the sigevent structure be defined
+// in <time.h> as described in the header <signal.h>.  This prevents
+// compiler warnings for applications that only include <time.h> and not
+// also <signal.h>.  The sigval union and the sigevent structure is
+// therefore defined both here and in <sys/siginfo.h> which gets included
+// via inclusion of <signal.h>.
+type Sigval = struct {
+	F__ccgo_pad1 [0]uint64
+	Fsival_int   int32
+	F__ccgo_pad2 [4]byte
+} /* time.h:125:1 */
+
+type Sigevent = struct {
+	Fsigev_notify int32
+	Fsigev_signo  int32
+	Fsigev_value  struct {
+		F__ccgo_pad1 [0]uint64
+		Fsival_int   int32
+		F__ccgo_pad2 [4]byte
+	}
+	Fsigev_notify_function   uintptr
+	Fsigev_notify_attributes uintptr
+	F__sigev_pad2            int32
+	F__ccgo_pad1             [4]byte
+} /* time.h:133:1 */
+
+type Locale_t = uintptr /* time.h:292:24 */
+
+// The inclusion of <sys/select.h> is needed for the FD_CLR,
+// FD_ISSET, FD_SET, and FD_SETSIZE macros as well as the
+// select() prototype defined in the XOpen specifications
+// beginning with XSH4v2.  Placement required after definition
+// for itimerval.
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+
+// Copyright 2014 Garrett D'Amore <garrett@damore.org>
+//
+// Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
+//
+// Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+
+//	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T
+//	  All Rights Reserved
+
+// University Copyright- Copyright (c) 1982, 1986, 1988
+// The Regents of the University of California
+// All Rights Reserved
+//
+// University Acknowledgment- Portions of this document are derived from
+// software developed by the University of California, Berkeley, and its
+// contributors.
+
+// CDDL HEADER START
+//
+// The contents of this file are subject to the terms of the
+// Common Development and Distribution License (the "License").
+// You may not use this file except in compliance with the License.
+//
+// You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+// or http://www.opensolaris.org/os/licensing.
+// See the License for the specific language governing permissions
+// and limitations under the License.
+//
+// When distributing Covered Code, include this CDDL HEADER in each
+// file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+// If applicable, add the following below this CDDL HEADER, with the
+// fields enclosed by brackets "[]" replaced with your own identifying
+// information: Portions Copyright [yyyy] [name of copyright owner]
+//
+// CDDL HEADER END
+//	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T
+//	  All Rights Reserved
+
+// Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
+// Use is subject to license terms.
+//
+// Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
+// Copyright 2016 Joyent, Inc.
+// Copyright 2021 Oxide Computer Company
+
+// _POSIX_VDISABLE has been defined in <sys/termios.h> since the
+// introduction of the header. The POSIX standard, IEEE Std.
+// 1003.1-1988 also required  the existence of _POSIX_VDISABLE in
+// this header. Subsequent versions of the IEEE Standard as well
+// as the X/Open specifications required that _POSIX_VDISABLE be
+// defined in <unistd.h> while still allowing for it's existence
+// here. With the introduction of XPG6, _POSIX_VDISABLE can only
+// be defined in <unistd.h>.
+
+// required by termio.h and VCEOF/VCEOL
+
+// some defines required by POSIX
+
+// types defined by POSIX. These are better off in types.h, but
+// the standard says that they have to be in termios.h.
+type Tcflag_t = uint32 /* termios.h:81:22 */
+type Cc_t = uint8      /* termios.h:82:23 */
+type Speed_t = uint32  /* termios.h:83:22 */
+
+// Ioctl control packet
+type Termios = struct {
+	Fc_iflag     uint32
+	Fc_oflag     uint32
+	Fc_cflag     uint32
+	Fc_lflag     uint32
+	Fc_cc        [19]uint8
+	F__ccgo_pad1 [1]byte
+} /* termios.h:88:1 */
+
+// control characters
+// 18 through 19 reserved for future use
+
+// control characters form Xenix termio.h
+
+// S5 default control chars
+// CINTR, CERASE and CKILL modified to SunOS traditional values
+
+// input modes
+
+// output modes
+
+// control modes
+
+// 4.4BSD hardware flow control flags
+
+// line discipline 0 modes
+
+// Slots reserved for 386/XENIX compatibility - keyboard control
+
+// Softcarrier ioctls
+
+// termios ioctls
+
+// linux terminal ioctls we need to be aware of
+
+// The VMIN and VTIME and solaris overlap with VEOF and VEOL - This is
+// perfectly legal except, linux expects them to be separate. So we keep
+// them separately.
+type Lx_cc = struct {
+	Fveof  uint8
+	Fveol  uint8
+	Fvmin  uint8
+	Fvtime uint8
+} /* termios.h:376:1 */
+
+// NTP PPS ioctls
+
+// Argument filled in by TIOCGPPSEV
+type Ppsclockev = struct {
+	Ftv struct {
+		Ftv_sec  int64
+		Ftv_usec int64
+	}
+	Fserial      uint32
+	F__ccgo_pad1 [4]byte
+} /* termios.h:391:1 */
+
+// termios option flags
+
+// TIOC ioctls for BSD, ptys, job control and modem control
+
+// Slots for 386/XENIX compatibility
+// BSD includes these ioctls in ttold.h
+
+// BSD ioctls that are not the same as XENIX are included here.
+// There are also some relevant ioctls from SUN/BSD sys/ttycom.h
+// BSD pty ioctls like TIOCPKT are not supported in SVR4.
+
+// POSIX job control ioctls
+
+// Miscellaneous
+
+// Modem control
+
+// pseudo-tty
+
+// Some more 386 xenix stuff
+
+// Slots for 386 compatibility
+
+// These are retained for 386/XENIX compatibility.
+
+// Returns a non-zero value if there
+// are characters in the input queue.
+//
+// XXX - somebody is confused here.  V7 had no such "ioctl", although XENIX may
+// have added it; 4BSD had FIONREAD, which returned the number of characters
+// waiting, and was supposed to work on all descriptors (i.e., every driver
+// should make a stab at implementing it).
+
+// Speeds
+
+// Windowing structure to support JWINSIZE/TIOCSWINSZ/TIOCGWINSZ
+type Winsize = struct {
+	Fws_row    uint16
+	Fws_col    uint16
+	Fws_xpixel uint16
+	Fws_ypixel uint16
+} /* termios.h:580:1 */
+
+var _ int8 /* gen.c:2:13: */
diff --git a/vendor/modernc.org/libc/termios/termios_linux_386.go b/vendor/modernc.org/libc/termios/termios_linux_386.go
new file mode 100644
index 0000000..a0a63dc
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/termios_linux_386.go
@@ -0,0 +1,1007 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o termios/termios_linux_386.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+import (
+	"math"
+	"reflect"
+	"sync/atomic"
+	"unsafe"
+)
+
+var _ = math.Pi
+var _ reflect.Kind
+var _ atomic.Value
+var _ unsafe.Pointer
+
+const (
+	B0                             = 0000000
+	B1000000                       = 0010010
+	B110                           = 0000003
+	B115200                        = 0010002
+	B1152000                       = 0010011
+	B1200                          = 0000011
+	B134                           = 0000004
+	B150                           = 0000005
+	B1500000                       = 0010012
+	B1800                          = 0000012
+	B19200                         = 0000016
+	B200                           = 0000006
+	B2000000                       = 0010013
+	B230400                        = 0010003
+	B2400                          = 0000013
+	B2500000                       = 0010014
+	B300                           = 0000007
+	B3000000                       = 0010015
+	B3500000                       = 0010016
+	B38400                         = 0000017
+	B4000000                       = 0010017
+	B460800                        = 0010004
+	B4800                          = 0000014
+	B50                            = 0000001
+	B500000                        = 0010005
+	B57600                         = 0010001
+	B576000                        = 0010006
+	B600                           = 0000010
+	B75                            = 0000002
+	B921600                        = 0010007
+	B9600                          = 0000015
+	BRKINT                         = 0000002
+	BS0                            = 0000000
+	BS1                            = 0020000
+	BSDLY                          = 0020000
+	CBAUD                          = 000000010017
+	CBAUDEX                        = 000000010000
+	CBRK                           = 0
+	CDISCARD                       = 15
+	CDSUSP                         = 25
+	CEOF                           = 4
+	CEOL                           = 0
+	CEOT                           = 4
+	CERASE                         = 0177
+	CFLUSH                         = 15
+	CIBAUD                         = 002003600000
+	CINTR                          = 3
+	CKILL                          = 21
+	CLNEXT                         = 22
+	CLOCAL                         = 0004000
+	CMIN                           = 1
+	CMSPAR                         = 010000000000
+	CQUIT                          = 034
+	CR0                            = 0000000
+	CR1                            = 0001000
+	CR2                            = 0002000
+	CR3                            = 0003000
+	CRDLY                          = 0003000
+	CREAD                          = 0000200
+	CREPRINT                       = 18
+	CRPRNT                         = 18
+	CRTSCTS                        = 020000000000
+	CS5                            = 0000000
+	CS6                            = 0000020
+	CS7                            = 0000040
+	CS8                            = 0000060
+	CSIZE                          = 0000060
+	CSTART                         = 17
+	CSTATUS                        = 0
+	CSTOP                          = 19
+	CSTOPB                         = 0000100
+	CSUSP                          = 26
+	CTIME                          = 0
+	CWERASE                        = 23
+	ECHO                           = 0000010
+	ECHOCTL                        = 0001000
+	ECHOE                          = 0000020
+	ECHOK                          = 0000040
+	ECHOKE                         = 0004000
+	ECHONL                         = 0000100
+	ECHOPRT                        = 0002000
+	EXTA                           = 14
+	EXTB                           = 15
+	EXTPROC                        = 0200000
+	FF0                            = 0000000
+	FF1                            = 0100000
+	FFDLY                          = 0100000
+	FLUSHO                         = 0010000
+	HUPCL                          = 0002000
+	ICANON                         = 0000002
+	ICRNL                          = 0000400
+	IEXTEN                         = 0100000
+	IGNBRK                         = 0000001
+	IGNCR                          = 0000200
+	IGNPAR                         = 0000004
+	IMAXBEL                        = 0020000
+	INLCR                          = 0000100
+	INPCK                          = 0000020
+	ISIG                           = 0000001
+	ISTRIP                         = 0000040
+	IUCLC                          = 0001000
+	IUTF8                          = 0040000
+	IXANY                          = 0004000
+	IXOFF                          = 0010000
+	IXON                           = 0002000
+	NCCS                           = 32
+	NL0                            = 0000000
+	NL1                            = 0000400
+	NLDLY                          = 0000400
+	NOFLSH                         = 0000200
+	OCRNL                          = 0000010
+	OFDEL                          = 0000200
+	OFILL                          = 0000100
+	OLCUC                          = 0000002
+	ONLCR                          = 0000004
+	ONLRET                         = 0000040
+	ONOCR                          = 0000020
+	OPOST                          = 0000001
+	PARENB                         = 0000400
+	PARMRK                         = 0000010
+	PARODD                         = 0001000
+	PENDIN                         = 0040000
+	TAB0                           = 0000000
+	TAB1                           = 0004000
+	TAB2                           = 0010000
+	TAB3                           = 0014000
+	TABDLY                         = 0014000
+	TCIFLUSH                       = 0
+	TCIOFF                         = 2
+	TCIOFLUSH                      = 2
+	TCION                          = 3
+	TCOFLUSH                       = 1
+	TCOOFF                         = 0
+	TCOON                          = 1
+	TCSADRAIN                      = 1
+	TCSAFLUSH                      = 2
+	TCSANOW                        = 0
+	TIOCSER_TEMT                   = 0x01
+	TOSTOP                         = 0000400
+	TTYDEF_CFLAG                   = 1440
+	TTYDEF_IFLAG                   = 11554
+	TTYDEF_LFLAG                   = 35355
+	TTYDEF_OFLAG                   = 6149
+	TTYDEF_SPEED                   = 13
+	VDISCARD                       = 13
+	VEOF                           = 4
+	VEOL                           = 11
+	VEOL2                          = 16
+	VERASE                         = 2
+	VINTR                          = 0
+	VKILL                          = 3
+	VLNEXT                         = 15
+	VMIN                           = 6
+	VQUIT                          = 1
+	VREPRINT                       = 12
+	VSTART                         = 8
+	VSTOP                          = 9
+	VSUSP                          = 10
+	VSWTC                          = 7
+	VT0                            = 0000000
+	VT1                            = 0040000
+	VTDLY                          = 0040000
+	VTIME                          = 5
+	VWERASE                        = 14
+	XCASE                          = 0000004
+	XTABS                          = 0014000
+	X_ATFILE_SOURCE                = 1
+	X_BITS_TIME64_H                = 1
+	X_BITS_TYPESIZES_H             = 1
+	X_BITS_TYPES_H                 = 1
+	X_DEFAULT_SOURCE               = 1
+	X_FEATURES_H                   = 1
+	X_FILE_OFFSET_BITS             = 64
+	X_HAVE_STRUCT_TERMIOS_C_ISPEED = 1
+	X_HAVE_STRUCT_TERMIOS_C_OSPEED = 1
+	X_ILP32                        = 1
+	X_POSIX_C_SOURCE               = 200809
+	X_POSIX_SOURCE                 = 1
+	X_STDC_PREDEF_H                = 1
+	X_SYS_CDEFS_H                  = 1
+	X_SYS_TTYDEFAULTS_H_           = 0
+	X_TERMIOS_H                    = 1
+	I386                           = 1
+	Linux                          = 1
+	Unix                           = 1
+)
+
+type Ptrdiff_t = int32 /* <builtin>:3:26 */
+
+type Size_t = uint32 /* <builtin>:9:23 */
+
+type Wchar_t = int32 /* <builtin>:15:24 */
+
+type X__builtin_va_list = uintptr /* <builtin>:46:14 */
+type X__float128 = float64        /* <builtin>:47:21 */
+
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+//	POSIX Standard: 7.1-2 General Terminal Interface	<termios.h>
+
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// These are defined by the user (or the compiler)
+//    to specify the desired environment:
+//
+//    __STRICT_ANSI__	ISO Standard C.
+//    _ISOC99_SOURCE	Extensions to ISO C89 from ISO C99.
+//    _ISOC11_SOURCE	Extensions to ISO C99 from ISO C11.
+//    _ISOC2X_SOURCE	Extensions to ISO C99 from ISO C2X.
+//    __STDC_WANT_LIB_EXT2__
+// 			Extensions to ISO C99 from TR 27431-2:2010.
+//    __STDC_WANT_IEC_60559_BFP_EXT__
+// 			Extensions to ISO C11 from TS 18661-1:2014.
+//    __STDC_WANT_IEC_60559_FUNCS_EXT__
+// 			Extensions to ISO C11 from TS 18661-4:2015.
+//    __STDC_WANT_IEC_60559_TYPES_EXT__
+// 			Extensions to ISO C11 from TS 18661-3:2015.
+//
+//    _POSIX_SOURCE	IEEE Std 1003.1.
+//    _POSIX_C_SOURCE	If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2;
+// 			if >=199309L, add IEEE Std 1003.1b-1993;
+// 			if >=199506L, add IEEE Std 1003.1c-1995;
+// 			if >=200112L, all of IEEE 1003.1-2004
+// 			if >=200809L, all of IEEE 1003.1-2008
+//    _XOPEN_SOURCE	Includes POSIX and XPG things.  Set to 500 if
+// 			Single Unix conformance is wanted, to 600 for the
+// 			sixth revision, to 700 for the seventh revision.
+//    _XOPEN_SOURCE_EXTENDED XPG things and X/Open Unix extensions.
+//    _LARGEFILE_SOURCE	Some more functions for correct standard I/O.
+//    _LARGEFILE64_SOURCE	Additional functionality from LFS for large files.
+//    _FILE_OFFSET_BITS=N	Select default filesystem interface.
+//    _ATFILE_SOURCE	Additional *at interfaces.
+//    _GNU_SOURCE		All of the above, plus GNU extensions.
+//    _DEFAULT_SOURCE	The default set of features (taking precedence over
+// 			__STRICT_ANSI__).
+//
+//    _FORTIFY_SOURCE	Add security hardening to many library functions.
+// 			Set to 1 or 2; 2 performs stricter checks than 1.
+//
+//    _REENTRANT, _THREAD_SAFE
+// 			Obsolete; equivalent to _POSIX_C_SOURCE=199506L.
+//
+//    The `-ansi' switch to the GNU C compiler, and standards conformance
+//    options such as `-std=c99', define __STRICT_ANSI__.  If none of
+//    these are defined, or if _DEFAULT_SOURCE is defined, the default is
+//    to have _POSIX_SOURCE set to one and _POSIX_C_SOURCE set to
+//    200809L, as well as enabling miscellaneous functions from BSD and
+//    SVID.  If more than one of these are defined, they accumulate.  For
+//    example __STRICT_ANSI__, _POSIX_SOURCE and _POSIX_C_SOURCE together
+//    give you ISO C, 1003.1, and 1003.2, but nothing else.
+//
+//    These are defined by this file and are used by the
+//    header files to decide what to declare or define:
+//
+//    __GLIBC_USE (F)	Define things from feature set F.  This is defined
+// 			to 1 or 0; the subsequent macros are either defined
+// 			or undefined, and those tests should be moved to
+// 			__GLIBC_USE.
+//    __USE_ISOC11		Define ISO C11 things.
+//    __USE_ISOC99		Define ISO C99 things.
+//    __USE_ISOC95		Define ISO C90 AMD1 (C95) things.
+//    __USE_ISOCXX11	Define ISO C++11 things.
+//    __USE_POSIX		Define IEEE Std 1003.1 things.
+//    __USE_POSIX2		Define IEEE Std 1003.2 things.
+//    __USE_POSIX199309	Define IEEE Std 1003.1, and .1b things.
+//    __USE_POSIX199506	Define IEEE Std 1003.1, .1b, .1c and .1i things.
+//    __USE_XOPEN		Define XPG things.
+//    __USE_XOPEN_EXTENDED	Define X/Open Unix things.
+//    __USE_UNIX98		Define Single Unix V2 things.
+//    __USE_XOPEN2K        Define XPG6 things.
+//    __USE_XOPEN2KXSI     Define XPG6 XSI things.
+//    __USE_XOPEN2K8       Define XPG7 things.
+//    __USE_XOPEN2K8XSI    Define XPG7 XSI things.
+//    __USE_LARGEFILE	Define correct standard I/O things.
+//    __USE_LARGEFILE64	Define LFS things with separate names.
+//    __USE_FILE_OFFSET64	Define 64bit interface as default.
+//    __USE_MISC		Define things from 4.3BSD or System V Unix.
+//    __USE_ATFILE		Define *at interfaces and AT_* constants for them.
+//    __USE_GNU		Define GNU extensions.
+//    __USE_FORTIFY_LEVEL	Additional security measures used, according to level.
+//
+//    The macros `__GNU_LIBRARY__', `__GLIBC__', and `__GLIBC_MINOR__' are
+//    defined by this file unconditionally.  `__GNU_LIBRARY__' is provided
+//    only for compatibility.  All new code should use the other symbols
+//    to test for features.
+//
+//    All macros listed above as possibly being defined by this file are
+//    explicitly undefined if they are not explicitly defined.
+//    Feature-test macros that are not defined by the user or compiler
+//    but are implied by the other feature-test macros defined (or by the
+//    lack of any definitions) are defined by the file.
+//
+//    ISO C feature test macros depend on the definition of the macro
+//    when an affected header is included, not when the first system
+//    header is included, and so they are handled in
+//    <bits/libc-header-start.h>, which does not have a multiple include
+//    guard.  Feature test macros that can be handled from the first
+//    system header included are handled here.
+
+// Undefine everything, so we get a clean slate.
+
+// Suppress kernel-name space pollution unless user expressedly asks
+//    for it.
+
+// Convenience macro to test the version of gcc.
+//    Use like this:
+//    #if __GNUC_PREREQ (2,8)
+//    ... code requiring gcc 2.8 or later ...
+//    #endif
+//    Note: only works for GCC 2.0 and later, because __GNUC_MINOR__ was
+//    added in 2.0.
+
+// Similarly for clang.  Features added to GCC after version 4.2 may
+//    or may not also be available in clang, and clang's definitions of
+//    __GNUC(_MINOR)__ are fixed at 4 and 2 respectively.  Not all such
+//    features can be queried via __has_extension/__has_feature.
+
+// Whether to use feature set F.
+
+// _BSD_SOURCE and _SVID_SOURCE are deprecated aliases for
+//    _DEFAULT_SOURCE.  If _DEFAULT_SOURCE is present we do not
+//    issue a warning; the expectation is that the source is being
+//    transitioned to use the new macro.
+
+// If _GNU_SOURCE was defined by the user, turn on all the other features.
+
+// If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined,
+//    define _DEFAULT_SOURCE.
+
+// This is to enable the ISO C2X extension.
+
+// This is to enable the ISO C11 extension.
+
+// This is to enable the ISO C99 extension.
+
+// This is to enable the ISO C90 Amendment 1:1995 extension.
+
+// If none of the ANSI/POSIX macros are defined, or if _DEFAULT_SOURCE
+//    is defined, use POSIX.1-2008 (or another version depending on
+//    _XOPEN_SOURCE).
+
+// Some C libraries once required _REENTRANT and/or _THREAD_SAFE to be
+//    defined in all multithreaded code.  GNU libc has not required this
+//    for many years.  We now treat them as compatibility synonyms for
+//    _POSIX_C_SOURCE=199506L, which is the earliest level of POSIX with
+//    comprehensive support for multithreaded code.  Using them never
+//    lowers the selected level of POSIX conformance, only raises it.
+
+// The function 'gets' existed in C89, but is impossible to use
+//    safely.  It has been removed from ISO C11 and ISO C++14.  Note: for
+//    compatibility with various implementations of <cstdio>, this test
+//    must consider only the value of __cplusplus when compiling C++.
+
+// GNU formerly extended the scanf functions with modified format
+//    specifiers %as, %aS, and %a[...] that allocate a buffer for the
+//    input using malloc.  This extension conflicts with ISO C99, which
+//    defines %a as a standalone format specifier that reads a floating-
+//    point number; moreover, POSIX.1-2008 provides the same feature
+//    using the modifier letter 'm' instead (%ms, %mS, %m[...]).
+//
+//    We now follow C99 unless GNU extensions are active and the compiler
+//    is specifically in C89 or C++98 mode (strict or not).  For
+//    instance, with GCC, -std=gnu11 will have C99-compliant scanf with
+//    or without -D_GNU_SOURCE, but -std=c89 -D_GNU_SOURCE will have the
+//    old extension.
+
+// Get definitions of __STDC_* predefined macros, if the compiler has
+//    not preincluded this header automatically.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// This macro indicates that the installed library is the GNU C Library.
+//    For historic reasons the value now is 6 and this will stay from now
+//    on.  The use of this variable is deprecated.  Use __GLIBC__ and
+//    __GLIBC_MINOR__ now (see below) when you want to test for a specific
+//    GNU C library version and use the values in <gnu/lib-names.h> to get
+//    the sonames of the shared libraries.
+
+// Major and minor version number of the GNU C library package.  Use
+//    these macros to test for features in specific releases.
+
+// This is here only because every header file already includes this one.
+// Copyright (C) 1992-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// We are almost always included from features.h.
+
+// The GNU libc does not support any K&R compilers or the traditional mode
+//    of ISO C compilers anymore.  Check for some of the combinations not
+//    anymore supported.
+
+// Some user header file might have defined this before.
+
+// All functions, except those with callbacks or those that
+//    synchronize memory, are leaf functions.
+
+// GCC can always grok prototypes.  For C++ programs we add throw()
+//    to help it optimize the function calls.  But this works only with
+//    gcc 2.8.x and egcs.  For gcc 3.2 and up we even mark C functions
+//    as non-throwing using a function attribute since programs can use
+//    the -fexceptions options for C code as well.
+
+// Compilers that are not clang may object to
+//        #if defined __clang__ && __has_extension(...)
+//    even though they do not need to evaluate the right-hand side of the &&.
+
+// These two macros are not used in glibc anymore.  They are kept here
+//    only because some other projects expect the macros to be defined.
+
+// For these things, GCC behaves the ANSI way normally,
+//    and the non-ANSI way under -traditional.
+
+// This is not a typedef so `const __ptr_t' does the right thing.
+
+// C++ needs to know that types and declarations are C, not C++.
+
+// Fortify support.
+
+// Support for flexible arrays.
+//    Headers that should use flexible arrays only if they're "real"
+//    (e.g. only if they won't affect sizeof()) should test
+//    #if __glibc_c99_flexarr_available.
+
+// __asm__ ("xyz") is used throughout the headers to rename functions
+//    at the assembly language level.  This is wrapped by the __REDIRECT
+//    macro, in order to support compilers that can do this some other
+//    way.  When compilers don't support asm-names at all, we have to do
+//    preprocessor tricks instead (which don't have exactly the right
+//    semantics, but it's the best we can do).
+//
+//    Example:
+//    int __REDIRECT(setpgrp, (__pid_t pid, __pid_t pgrp), setpgid);
+
+//
+// #elif __SOME_OTHER_COMPILER__
+//
+// # define __REDIRECT(name, proto, alias) name proto; 	_Pragma("let " #name " = " #alias)
+
+// GCC has various useful declarations that can be made with the
+//    `__attribute__' syntax.  All of the ways we use this do fine if
+//    they are omitted for compilers that don't understand it.
+
+// At some point during the gcc 2.96 development the `malloc' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// Tell the compiler which arguments to an allocation function
+//    indicate the size of the allocation.
+
+// At some point during the gcc 2.96 development the `pure' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// This declaration tells the compiler that the value is constant.
+
+// At some point during the gcc 3.1 development the `used' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// Since version 3.2, gcc allows marking deprecated functions.
+
+// Since version 4.5, gcc also allows one to specify the message printed
+//    when a deprecated function is used.  clang claims to be gcc 4.2, but
+//    may also support this feature.
+
+// At some point during the gcc 2.8 development the `format_arg' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+//    If several `format_arg' attributes are given for the same function, in
+//    gcc-3.0 and older, all but the last one are ignored.  In newer gccs,
+//    all designated arguments are considered.
+
+// At some point during the gcc 2.97 development the `strfmon' format
+//    attribute for functions was introduced.  We don't want to use it
+//    unconditionally (although this would be possible) since it
+//    generates warnings.
+
+// The nonull function attribute allows to mark pointer parameters which
+//    must not be NULL.
+
+// If fortification mode, we warn about unused results of certain
+//    function calls which can lead to problems.
+
+// Forces a function to be always inlined.
+// The Linux kernel defines __always_inline in stddef.h (283d7573), and
+//    it conflicts with this definition.  Therefore undefine it first to
+//    allow either header to be included first.
+
+// Associate error messages with the source location of the call site rather
+//    than with the source location inside the function.
+
+// GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99
+//    inline semantics, unless -fgnu89-inline is used.  Using __GNUC_STDC_INLINE__
+//    or __GNUC_GNU_INLINE is not a good enough check for gcc because gcc versions
+//    older than 4.3 may define these macros and still not guarantee GNU inlining
+//    semantics.
+//
+//    clang++ identifies itself as gcc-4.2, but has support for GNU inlining
+//    semantics, that can be checked for by using the __GNUC_STDC_INLINE_ and
+//    __GNUC_GNU_INLINE__ macro definitions.
+
+// GCC 4.3 and above allow passing all anonymous arguments of an
+//    __extern_always_inline function to some other vararg function.
+
+// It is possible to compile containing GCC extensions even if GCC is
+//    run in pedantic mode if the uses are carefully marked using the
+//    `__extension__' keyword.  But this is not generally available before
+//    version 2.8.
+
+// __restrict is known in EGCS 1.2 and above.
+
+// ISO C99 also allows to declare arrays as non-overlapping.  The syntax is
+//      array_name[restrict]
+//    GCC 3.1 supports this.
+
+// Describes a char array whose address can safely be passed as the first
+//    argument to strncpy and strncat, as the char array is not necessarily
+//    a NUL-terminated string.
+
+// Undefine (also defined in libc-symbols.h).
+// Copies attributes from the declaration or type referenced by
+//    the argument.
+
+// Determine the wordsize from the preprocessor defines.
+
+// Properties of long double type.  ldbl-96 version.
+//    Copyright (C) 2016-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License  published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// long double is distinct from double, so there is nothing to
+//    define here.
+
+// __glibc_macro_warning (MESSAGE) issues warning MESSAGE.  This is
+//    intended for use in preprocessor macros.
+//
+//    Note: MESSAGE must be a _single_ string; concatenation of string
+//    literals is not supported.
+
+// Generic selection (ISO C11) is a C-only feature, available in GCC
+//    since version 4.9.  Previous versions do not provide generic
+//    selection, even though they might set __STDC_VERSION__ to 201112L,
+//    when in -std=c11 mode.  Thus, we must check for !defined __GNUC__
+//    when testing __STDC_VERSION__ for generic selection support.
+//    On the other hand, Clang also defines __GNUC__, so a clang-specific
+//    check is required to enable the use of generic selection.
+
+// If we don't have __REDIRECT, prototypes will be missing if
+//    __USE_FILE_OFFSET64 but not __USE_LARGEFILE[64].
+
+// Decide whether we can define 'extern inline' functions in headers.
+
+// This is here only because every header file already includes this one.
+//    Get the definitions of all the appropriate `__stub_FUNCTION' symbols.
+//    <gnu/stubs.h> contains `#define __stub_FUNCTION' when FUNCTION is a stub
+//    that will always return failure (and set errno to ENOSYS).
+// This file is automatically generated.
+//    This file selects the right generated file of `__stub_FUNCTION' macros
+//    based on the architecture being compiled for.
+
+// This file is automatically generated.
+//    It defines a symbol `__stub_FUNCTION' for each function
+//    in the C library which is a stub, meaning it will fail
+//    every time called, usually setting errno to ENOSYS.
+
+// We need `pid_t'.
+// bits/types.h -- definitions of __*_t types underlying *_t types.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Never include this file directly; use <sys/types.h> instead.
+
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Determine the wordsize from the preprocessor defines.
+
+// Bit size of the time_t type at glibc build time, x86-64 and x32 case.
+//    Copyright (C) 2018-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// For others, time size is word size.
+
+// Convenience types.
+type X__u_char = uint8   /* types.h:31:23 */
+type X__u_short = uint16 /* types.h:32:28 */
+type X__u_int = uint32   /* types.h:33:22 */
+type X__u_long = uint32  /* types.h:34:27 */
+
+// Fixed-size types, underlying types depend on word size and compiler.
+type X__int8_t = int8     /* types.h:37:21 */
+type X__uint8_t = uint8   /* types.h:38:23 */
+type X__int16_t = int16   /* types.h:39:26 */
+type X__uint16_t = uint16 /* types.h:40:28 */
+type X__int32_t = int32   /* types.h:41:20 */
+type X__uint32_t = uint32 /* types.h:42:22 */
+type X__int64_t = int64   /* types.h:47:44 */
+type X__uint64_t = uint64 /* types.h:48:46 */
+
+// Smallest types with at least a given width.
+type X__int_least8_t = X__int8_t     /* types.h:52:18 */
+type X__uint_least8_t = X__uint8_t   /* types.h:53:19 */
+type X__int_least16_t = X__int16_t   /* types.h:54:19 */
+type X__uint_least16_t = X__uint16_t /* types.h:55:20 */
+type X__int_least32_t = X__int32_t   /* types.h:56:19 */
+type X__uint_least32_t = X__uint32_t /* types.h:57:20 */
+type X__int_least64_t = X__int64_t   /* types.h:58:19 */
+type X__uint_least64_t = X__uint64_t /* types.h:59:20 */
+
+// quad_t is also 64 bits.
+type X__quad_t = int64    /* types.h:66:37 */
+type X__u_quad_t = uint64 /* types.h:67:46 */
+
+// Largest integral types.
+type X__intmax_t = int64   /* types.h:75:37 */
+type X__uintmax_t = uint64 /* types.h:76:46 */
+
+// The machine-dependent file <bits/typesizes.h> defines __*_T_TYPE
+//    macros for each of the OS types we define below.  The definitions
+//    of those macros must use the following macros for underlying types.
+//    We define __S<SIZE>_TYPE and __U<SIZE>_TYPE for the signed and unsigned
+//    variants of each of the following integer types on this machine.
+//
+// 	16		-- "natural" 16-bit type (always short)
+// 	32		-- "natural" 32-bit type (always int)
+// 	64		-- "natural" 64-bit type (long or long long)
+// 	LONG32		-- 32-bit type, traditionally long
+// 	QUAD		-- 64-bit type, traditionally long long
+// 	WORD		-- natural type of __WORDSIZE bits (int or long)
+// 	LONGWORD	-- type of __WORDSIZE bits, traditionally long
+//
+//    We distinguish WORD/LONGWORD, 32/LONG32, and 64/QUAD so that the
+//    conventional uses of `long' or `long long' type modifiers match the
+//    types we define, even when a less-adorned type would be the same size.
+//    This matters for (somewhat) portably writing printf/scanf formats for
+//    these types, where using the appropriate l or ll format modifiers can
+//    make the typedefs and the formats match up across all GNU platforms.  If
+//    we used `long' when it's 64 bits where `long long' is expected, then the
+//    compiler would warn about the formats not matching the argument types,
+//    and the programmer changing them to shut up the compiler would break the
+//    program's portability.
+//
+//    Here we assume what is presently the case in all the GCC configurations
+//    we support: long long is always 64 bits, long is always word/address size,
+//    and int is always 32 bits.
+
+// We want __extension__ before typedef's that use nonstandard base types
+//    such as `long long' in C89 mode.
+// bits/typesizes.h -- underlying types for *_t.  Linux/x86-64 version.
+//    Copyright (C) 2012-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// See <bits/types.h> for the meaning of these macros.  This file exists so
+//    that <bits/types.h> need not vary across different GNU platforms.
+
+// X32 kernel interface is 64-bit.
+
+// Number of descriptors that can fit in an `fd_set'.
+
+// bits/time64.h -- underlying types for __time64_t.  Generic version.
+//    Copyright (C) 2018-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Define __TIME64_T_TYPE so that it is always a 64-bit type.
+
+// Define a 64-bit time type alongsize the 32-bit one.
+
+type X__dev_t = X__uint64_t                /* types.h:145:25 */ // Type of device numbers.
+type X__uid_t = uint32                     /* types.h:146:25 */ // Type of user identifications.
+type X__gid_t = uint32                     /* types.h:147:25 */ // Type of group identifications.
+type X__ino_t = uint32                     /* types.h:148:25 */ // Type of file serial numbers.
+type X__ino64_t = X__uint64_t              /* types.h:149:27 */ // Type of file serial numbers (LFS).
+type X__mode_t = uint32                    /* types.h:150:26 */ // Type of file attribute bitmasks.
+type X__nlink_t = uint32                   /* types.h:151:27 */ // Type of file link counts.
+type X__off_t = int32                      /* types.h:152:25 */ // Type of file sizes and offsets.
+type X__off64_t = X__int64_t               /* types.h:153:27 */ // Type of file sizes and offsets (LFS).
+type X__pid_t = int32                      /* types.h:154:25 */ // Type of process identifications.
+type X__fsid_t = struct{ F__val [2]int32 } /* types.h:155:26 */ // Type of file system IDs.
+type X__clock_t = int32                    /* types.h:156:27 */ // Type of CPU usage counts.
+type X__rlim_t = uint32                    /* types.h:157:26 */ // Type for resource measurement.
+type X__rlim64_t = X__uint64_t             /* types.h:158:28 */ // Type for resource measurement (LFS).
+type X__id_t = uint32                      /* types.h:159:24 */ // General type for IDs.
+type X__time_t = int32                     /* types.h:160:26 */ // Seconds since the Epoch.
+type X__useconds_t = uint32                /* types.h:161:30 */ // Count of microseconds.
+type X__suseconds_t = int32                /* types.h:162:31 */ // Signed count of microseconds.
+
+type X__daddr_t = int32 /* types.h:164:27 */ // The type of a disk address.
+type X__key_t = int32   /* types.h:165:25 */ // Type of an IPC key.
+
+// Clock ID used in clock and timer functions.
+type X__clockid_t = int32 /* types.h:168:29 */
+
+// Timer ID returned by `timer_create'.
+type X__timer_t = uintptr /* types.h:171:12 */
+
+// Type to represent block size.
+type X__blksize_t = int32 /* types.h:174:29 */
+
+// Types from the Large File Support interface.
+
+// Type to count number of disk blocks.
+type X__blkcnt_t = int32        /* types.h:179:28 */
+type X__blkcnt64_t = X__int64_t /* types.h:180:30 */
+
+// Type to count file system blocks.
+type X__fsblkcnt_t = uint32        /* types.h:183:30 */
+type X__fsblkcnt64_t = X__uint64_t /* types.h:184:32 */
+
+// Type to count file system nodes.
+type X__fsfilcnt_t = uint32        /* types.h:187:30 */
+type X__fsfilcnt64_t = X__uint64_t /* types.h:188:32 */
+
+// Type of miscellaneous file system fields.
+type X__fsword_t = int32 /* types.h:191:28 */
+
+type X__ssize_t = int32 /* types.h:193:27 */ // Type of a byte count, or error.
+
+// Signed long type used in system calls.
+type X__syscall_slong_t = int32 /* types.h:196:33 */
+// Unsigned long type used in system calls.
+type X__syscall_ulong_t = uint32 /* types.h:198:33 */
+
+// These few don't really vary by system, they always correspond
+//
+//	to one of the other defined types.
+type X__loff_t = X__off64_t /* types.h:202:19 */ // Type of file sizes and offsets (LFS).
+type X__caddr_t = uintptr   /* types.h:203:14 */
+
+// Duplicates info from stdint.h but this is used in unistd.h.
+type X__intptr_t = int32 /* types.h:206:25 */
+
+// Duplicate info from sys/socket.h.
+type X__socklen_t = uint32 /* types.h:209:23 */
+
+// C99: An integer type that can be accessed as an atomic entity,
+//
+//	even in the presence of asynchronous interrupts.
+//	It is not currently necessary for this to be machine-specific.
+type X__sig_atomic_t = int32 /* types.h:214:13 */
+
+// Seconds since the Epoch, visible to user code when time_t is too
+//
+//	narrow only for consistency with the old way of widening too-narrow
+//	types.  User code should never use __time64_t.
+type X__time64_t = X__int64_t /* types.h:222:28 */
+
+type Pid_t = X__pid_t /* termios.h:30:17 */
+
+// Get the system-dependent definitions of `struct termios', `tcflag_t',
+//    `cc_t', `speed_t', and all the macros specifying the flag bits.
+// termios type and macro definitions.  Linux version.
+//    Copyright (C) 1993-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+type Cc_t = uint8      /* termios.h:23:23 */
+type Speed_t = uint32  /* termios.h:24:22 */
+type Tcflag_t = uint32 /* termios.h:25:22 */
+
+// struct termios definition.  Linux/generic version.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+type Termios = struct {
+	Fc_iflag     Tcflag_t
+	Fc_oflag     Tcflag_t
+	Fc_cflag     Tcflag_t
+	Fc_lflag     Tcflag_t
+	Fc_line      Cc_t
+	Fc_cc        [32]Cc_t
+	F__ccgo_pad1 [3]byte
+	Fc_ispeed    Speed_t
+	Fc_ospeed    Speed_t
+} /* termios-struct.h:24:1 */
+
+// -
+// Copyright (c) 1982, 1986, 1993
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttydefaults.h	8.4 (Berkeley) 1/21/94
+
+// System wide defaults for terminal state.  Linux version.
+
+// Defaults on "first" open.
+
+// Control Character Defaults
+// compat
+
+// PROTECTED INCLUSION ENDS HERE
+
+// #define TTYDEFCHARS to include an array of default control characters.
+
+var _ int8 /* gen.c:2:13: */
diff --git a/vendor/modernc.org/libc/termios/termios_linux_amd64.go b/vendor/modernc.org/libc/termios/termios_linux_amd64.go
new file mode 100644
index 0000000..494b201
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/termios_linux_amd64.go
@@ -0,0 +1,1024 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_linux_amd64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+import (
+	"math"
+	"reflect"
+	"sync/atomic"
+	"unsafe"
+)
+
+var _ = math.Pi
+var _ reflect.Kind
+var _ atomic.Value
+var _ unsafe.Pointer
+
+const (
+	B0                             = 0000000      // termios.h:33:1:
+	B1000000                       = 0010010      // termios-baud.h:40:1:
+	B110                           = 0000003      // termios.h:36:1:
+	B115200                        = 0010002      // termios-baud.h:34:1:
+	B1152000                       = 0010011      // termios-baud.h:41:1:
+	B1200                          = 0000011      // termios.h:42:1:
+	B134                           = 0000004      // termios.h:37:1:
+	B150                           = 0000005      // termios.h:38:1:
+	B1500000                       = 0010012      // termios-baud.h:42:1:
+	B1800                          = 0000012      // termios.h:43:1:
+	B19200                         = 0000016      // termios.h:47:1:
+	B200                           = 0000006      // termios.h:39:1:
+	B2000000                       = 0010013      // termios-baud.h:43:1:
+	B230400                        = 0010003      // termios-baud.h:35:1:
+	B2400                          = 0000013      // termios.h:44:1:
+	B2500000                       = 0010014      // termios-baud.h:44:1:
+	B300                           = 0000007      // termios.h:40:1:
+	B3000000                       = 0010015      // termios-baud.h:45:1:
+	B3500000                       = 0010016      // termios-baud.h:46:1:
+	B38400                         = 0000017      // termios.h:48:1:
+	B4000000                       = 0010017      // termios-baud.h:47:1:
+	B460800                        = 0010004      // termios-baud.h:36:1:
+	B4800                          = 0000014      // termios.h:45:1:
+	B50                            = 0000001      // termios.h:34:1:
+	B500000                        = 0010005      // termios-baud.h:37:1:
+	B57600                         = 0010001      // termios-baud.h:33:1:
+	B576000                        = 0010006      // termios-baud.h:38:1:
+	B600                           = 0000010      // termios.h:41:1:
+	B75                            = 0000002      // termios.h:35:1:
+	B921600                        = 0010007      // termios-baud.h:39:1:
+	B9600                          = 0000015      // termios.h:46:1:
+	BRKINT                         = 0000002      // termios-c_iflag.h:25:1:
+	BS0                            = 0000000      // termios-c_oflag.h:48:1:
+	BS1                            = 0020000      // termios-c_oflag.h:49:1:
+	BSDLY                          = 0020000      // termios-c_oflag.h:47:1:
+	CBAUD                          = 000000010017 // termios-baud.h:24:1:
+	CBAUDEX                        = 000000010000 // termios-baud.h:25:1:
+	CBRK                           = 0            // ttydefaults.h:83:1:
+	CDISCARD                       = 15           // ttydefaults.h:78:1:
+	CDSUSP                         = 25           // ttydefaults.h:74:1:
+	CEOF                           = 4            // ttydefaults.h:56:1:
+	CEOL                           = 0            // ttydefaults.h:60:1:
+	CEOT                           = 4            // ttydefaults.h:81:1:
+	CERASE                         = 0177         // ttydefaults.h:62:1:
+	CFLUSH                         = 15           // ttydefaults.h:85:1:
+	CIBAUD                         = 002003600000 // termios-baud.h:27:1:
+	CINTR                          = 3            // ttydefaults.h:63:1:
+	CKILL                          = 21           // ttydefaults.h:69:1:
+	CLNEXT                         = 22           // ttydefaults.h:77:1:
+	CLOCAL                         = 0004000      // termios-c_cflag.h:34:1:
+	CMIN                           = 1            // ttydefaults.h:70:1:
+	CMSPAR                         = 010000000000 // termios-baud.h:28:1:
+	CQUIT                          = 034          // ttydefaults.h:71:1:
+	CR0                            = 0000000      // termios-c_oflag.h:38:1:
+	CR1                            = 0001000      // termios-c_oflag.h:39:1:
+	CR2                            = 0002000      // termios-c_oflag.h:40:1:
+	CR3                            = 0003000      // termios-c_oflag.h:41:1:
+	CRDLY                          = 0003000      // termios-c_oflag.h:37:1:
+	CREAD                          = 0000200      // termios-c_cflag.h:30:1:
+	CREPRINT                       = 18           // ttydefaults.h:80:1:
+	CRPRNT                         = 18           // ttydefaults.h:84:1:
+	CRTSCTS                        = 020000000000 // termios-baud.h:29:1:
+	CS5                            = 0000000      // termios-c_cflag.h:25:1:
+	CS6                            = 0000020      // termios-c_cflag.h:26:1:
+	CS7                            = 0000040      // termios-c_cflag.h:27:1:
+	CS8                            = 0000060      // termios-c_cflag.h:28:1:
+	CSIZE                          = 0000060      // termios-c_cflag.h:24:1:
+	CSTART                         = 17           // ttydefaults.h:75:1:
+	CSTATUS                        = 0            // ttydefaults.h:67:1:
+	CSTOP                          = 19           // ttydefaults.h:76:1:
+	CSTOPB                         = 0000100      // termios-c_cflag.h:29:1:
+	CSUSP                          = 26           // ttydefaults.h:72:1:
+	CTIME                          = 0            // ttydefaults.h:73:1:
+	CWERASE                        = 23           // ttydefaults.h:79:1:
+	ECHO                           = 0000010      // termios-c_lflag.h:29:1:
+	ECHOCTL                        = 0001000      // termios-c_lflag.h:37:1:
+	ECHOE                          = 0000020      // termios-c_lflag.h:30:1:
+	ECHOK                          = 0000040      // termios-c_lflag.h:32:1:
+	ECHOKE                         = 0004000      // termios-c_lflag.h:45:1:
+	ECHONL                         = 0000100      // termios-c_lflag.h:33:1:
+	ECHOPRT                        = 0002000      // termios-c_lflag.h:42:1:
+	EXTA                           = 14           // termios.h:50:1:
+	EXTB                           = 15           // termios.h:51:1:
+	EXTPROC                        = 0200000      // termios-c_lflag.h:57:1:
+	FF0                            = 0000000      // termios-c_oflag.h:51:1:
+	FF1                            = 0100000      // termios-c_oflag.h:52:1:
+	FFDLY                          = 0100000      // termios-c_oflag.h:50:1:
+	FLUSHO                         = 0010000      // termios-c_lflag.h:48:1:
+	HUPCL                          = 0002000      // termios-c_cflag.h:33:1:
+	ICANON                         = 0000002      // termios-c_lflag.h:25:1:
+	ICRNL                          = 0000400      // termios-c_iflag.h:32:1:
+	IEXTEN                         = 0100000      // termios-c_lflag.h:54:1:
+	IGNBRK                         = 0000001      // termios-c_iflag.h:24:1:
+	IGNCR                          = 0000200      // termios-c_iflag.h:31:1:
+	IGNPAR                         = 0000004      // termios-c_iflag.h:26:1:
+	IMAXBEL                        = 0020000      // termios-c_iflag.h:38:1:
+	INLCR                          = 0000100      // termios-c_iflag.h:30:1:
+	INPCK                          = 0000020      // termios-c_iflag.h:28:1:
+	ISIG                           = 0000001      // termios-c_lflag.h:24:1:
+	ISTRIP                         = 0000040      // termios-c_iflag.h:29:1:
+	IUCLC                          = 0001000      // termios-c_iflag.h:33:1:
+	IUTF8                          = 0040000      // termios-c_iflag.h:40:1:
+	IXANY                          = 0004000      // termios-c_iflag.h:36:1:
+	IXOFF                          = 0010000      // termios-c_iflag.h:37:1:
+	IXON                           = 0002000      // termios-c_iflag.h:35:1:
+	NCCS                           = 32           // termios-struct.h:23:1:
+	NL0                            = 0000000      // termios-c_oflag.h:35:1:
+	NL1                            = 0000400      // termios-c_oflag.h:36:1:
+	NLDLY                          = 0000400      // termios-c_oflag.h:34:1:
+	NOFLSH                         = 0000200      // termios-c_lflag.h:34:1:
+	OCRNL                          = 0000010      // termios-c_oflag.h:28:1:
+	OFDEL                          = 0000200      // termios-c_oflag.h:32:1:
+	OFILL                          = 0000100      // termios-c_oflag.h:31:1:
+	OLCUC                          = 0000002      // termios-c_oflag.h:25:1:
+	ONLCR                          = 0000004      // termios-c_oflag.h:27:1:
+	ONLRET                         = 0000040      // termios-c_oflag.h:30:1:
+	ONOCR                          = 0000020      // termios-c_oflag.h:29:1:
+	OPOST                          = 0000001      // termios-c_oflag.h:24:1:
+	PARENB                         = 0000400      // termios-c_cflag.h:31:1:
+	PARMRK                         = 0000010      // termios-c_iflag.h:27:1:
+	PARODD                         = 0001000      // termios-c_cflag.h:32:1:
+	PENDIN                         = 0040000      // termios-c_lflag.h:50:1:
+	TAB0                           = 0000000      // termios-c_oflag.h:43:1:
+	TAB1                           = 0004000      // termios-c_oflag.h:44:1:
+	TAB2                           = 0010000      // termios-c_oflag.h:45:1:
+	TAB3                           = 0014000      // termios-c_oflag.h:46:1:
+	TABDLY                         = 0014000      // termios-c_oflag.h:42:1:
+	TCIFLUSH                       = 0            // termios.h:70:1:
+	TCIOFF                         = 2            // termios.h:66:1:
+	TCIOFLUSH                      = 2            // termios.h:72:1:
+	TCION                          = 3            // termios.h:67:1:
+	TCOFLUSH                       = 1            // termios.h:71:1:
+	TCOOFF                         = 0            // termios.h:64:1:
+	TCOON                          = 1            // termios.h:65:1:
+	TCSADRAIN                      = 1            // termios-tcflow.h:25:1:
+	TCSAFLUSH                      = 2            // termios-tcflow.h:26:1:
+	TCSANOW                        = 0            // termios-tcflow.h:24:1:
+	TIOCSER_TEMT                   = 0x01         // termios.h:60:1:
+	TOSTOP                         = 0000400      // termios-c_lflag.h:35:1:
+	TTYDEF_CFLAG                   = 1440         // ttydefaults.h:49:1:
+	TTYDEF_IFLAG                   = 11554        // ttydefaults.h:46:1:
+	TTYDEF_LFLAG                   = 35355        // ttydefaults.h:48:1:
+	TTYDEF_OFLAG                   = 6149         // ttydefaults.h:47:1:
+	TTYDEF_SPEED                   = 13           // ttydefaults.h:50:1:
+	VDISCARD                       = 13           // termios-c_cc.h:37:1:
+	VEOF                           = 4            // termios-c_cc.h:28:1:
+	VEOL                           = 11           // termios-c_cc.h:35:1:
+	VEOL2                          = 16           // termios-c_cc.h:40:1:
+	VERASE                         = 2            // termios-c_cc.h:26:1:
+	VINTR                          = 0            // termios-c_cc.h:24:1:
+	VKILL                          = 3            // termios-c_cc.h:27:1:
+	VLNEXT                         = 15           // termios-c_cc.h:39:1:
+	VMIN                           = 6            // termios-c_cc.h:30:1:
+	VQUIT                          = 1            // termios-c_cc.h:25:1:
+	VREPRINT                       = 12           // termios-c_cc.h:36:1:
+	VSTART                         = 8            // termios-c_cc.h:32:1:
+	VSTOP                          = 9            // termios-c_cc.h:33:1:
+	VSUSP                          = 10           // termios-c_cc.h:34:1:
+	VSWTC                          = 7            // termios-c_cc.h:31:1:
+	VT0                            = 0000000      // termios-c_oflag.h:56:1:
+	VT1                            = 0040000      // termios-c_oflag.h:57:1:
+	VTDLY                          = 0040000      // termios-c_oflag.h:55:1:
+	VTIME                          = 5            // termios-c_cc.h:29:1:
+	VWERASE                        = 14           // termios-c_cc.h:38:1:
+	XCASE                          = 0000004      // termios-c_lflag.h:27:1:
+	XTABS                          = 0014000      // termios-c_oflag.h:60:1:
+	X_ATFILE_SOURCE                = 1            // features.h:342:1:
+	X_BITS_TIME64_H                = 1            // time64.h:24:1:
+	X_BITS_TYPESIZES_H             = 1            // typesizes.h:24:1:
+	X_BITS_TYPES_H                 = 1            // types.h:24:1:
+	X_DEFAULT_SOURCE               = 1            // features.h:227:1:
+	X_FEATURES_H                   = 1            // features.h:19:1:
+	X_FILE_OFFSET_BITS             = 64           // <builtin>:25:1:
+	X_HAVE_STRUCT_TERMIOS_C_ISPEED = 1            // termios-struct.h:34:1:
+	X_HAVE_STRUCT_TERMIOS_C_OSPEED = 1            // termios-struct.h:35:1:
+	X_LP64                         = 1            // <predefined>:284:1:
+	X_POSIX_C_SOURCE               = 200809       // features.h:281:1:
+	X_POSIX_SOURCE                 = 1            // features.h:279:1:
+	X_STDC_PREDEF_H                = 1            // <predefined>:162:1:
+	X_SYS_CDEFS_H                  = 1            // cdefs.h:19:1:
+	X_SYS_TTYDEFAULTS_H_           = 0            // ttydefaults.h:41:1:
+	X_TERMIOS_H                    = 1            // termios.h:23:1:
+	Linux                          = 1            // <predefined>:231:1:
+	Unix                           = 1            // <predefined>:177:1:
+)
+
+type Ptrdiff_t = int64 /* <builtin>:3:26 */
+
+type Size_t = uint64 /* <builtin>:9:23 */
+
+type Wchar_t = int32 /* <builtin>:15:24 */
+
+type X__int128_t = struct {
+	Flo int64
+	Fhi int64
+} /* <builtin>:21:43 */ // must match modernc.org/mathutil.Int128
+type X__uint128_t = struct {
+	Flo uint64
+	Fhi uint64
+} /* <builtin>:22:44 */ // must match modernc.org/mathutil.Int128
+
+type X__builtin_va_list = uintptr /* <builtin>:46:14 */
+type X__float128 = float64        /* <builtin>:47:21 */
+
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+//	POSIX Standard: 7.1-2 General Terminal Interface	<termios.h>
+
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// These are defined by the user (or the compiler)
+//    to specify the desired environment:
+//
+//    __STRICT_ANSI__	ISO Standard C.
+//    _ISOC99_SOURCE	Extensions to ISO C89 from ISO C99.
+//    _ISOC11_SOURCE	Extensions to ISO C99 from ISO C11.
+//    _ISOC2X_SOURCE	Extensions to ISO C99 from ISO C2X.
+//    __STDC_WANT_LIB_EXT2__
+// 			Extensions to ISO C99 from TR 27431-2:2010.
+//    __STDC_WANT_IEC_60559_BFP_EXT__
+// 			Extensions to ISO C11 from TS 18661-1:2014.
+//    __STDC_WANT_IEC_60559_FUNCS_EXT__
+// 			Extensions to ISO C11 from TS 18661-4:2015.
+//    __STDC_WANT_IEC_60559_TYPES_EXT__
+// 			Extensions to ISO C11 from TS 18661-3:2015.
+//
+//    _POSIX_SOURCE	IEEE Std 1003.1.
+//    _POSIX_C_SOURCE	If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2;
+// 			if >=199309L, add IEEE Std 1003.1b-1993;
+// 			if >=199506L, add IEEE Std 1003.1c-1995;
+// 			if >=200112L, all of IEEE 1003.1-2004
+// 			if >=200809L, all of IEEE 1003.1-2008
+//    _XOPEN_SOURCE	Includes POSIX and XPG things.  Set to 500 if
+// 			Single Unix conformance is wanted, to 600 for the
+// 			sixth revision, to 700 for the seventh revision.
+//    _XOPEN_SOURCE_EXTENDED XPG things and X/Open Unix extensions.
+//    _LARGEFILE_SOURCE	Some more functions for correct standard I/O.
+//    _LARGEFILE64_SOURCE	Additional functionality from LFS for large files.
+//    _FILE_OFFSET_BITS=N	Select default filesystem interface.
+//    _ATFILE_SOURCE	Additional *at interfaces.
+//    _GNU_SOURCE		All of the above, plus GNU extensions.
+//    _DEFAULT_SOURCE	The default set of features (taking precedence over
+// 			__STRICT_ANSI__).
+//
+//    _FORTIFY_SOURCE	Add security hardening to many library functions.
+// 			Set to 1 or 2; 2 performs stricter checks than 1.
+//
+//    _REENTRANT, _THREAD_SAFE
+// 			Obsolete; equivalent to _POSIX_C_SOURCE=199506L.
+//
+//    The `-ansi' switch to the GNU C compiler, and standards conformance
+//    options such as `-std=c99', define __STRICT_ANSI__.  If none of
+//    these are defined, or if _DEFAULT_SOURCE is defined, the default is
+//    to have _POSIX_SOURCE set to one and _POSIX_C_SOURCE set to
+//    200809L, as well as enabling miscellaneous functions from BSD and
+//    SVID.  If more than one of these are defined, they accumulate.  For
+//    example __STRICT_ANSI__, _POSIX_SOURCE and _POSIX_C_SOURCE together
+//    give you ISO C, 1003.1, and 1003.2, but nothing else.
+//
+//    These are defined by this file and are used by the
+//    header files to decide what to declare or define:
+//
+//    __GLIBC_USE (F)	Define things from feature set F.  This is defined
+// 			to 1 or 0; the subsequent macros are either defined
+// 			or undefined, and those tests should be moved to
+// 			__GLIBC_USE.
+//    __USE_ISOC11		Define ISO C11 things.
+//    __USE_ISOC99		Define ISO C99 things.
+//    __USE_ISOC95		Define ISO C90 AMD1 (C95) things.
+//    __USE_ISOCXX11	Define ISO C++11 things.
+//    __USE_POSIX		Define IEEE Std 1003.1 things.
+//    __USE_POSIX2		Define IEEE Std 1003.2 things.
+//    __USE_POSIX199309	Define IEEE Std 1003.1, and .1b things.
+//    __USE_POSIX199506	Define IEEE Std 1003.1, .1b, .1c and .1i things.
+//    __USE_XOPEN		Define XPG things.
+//    __USE_XOPEN_EXTENDED	Define X/Open Unix things.
+//    __USE_UNIX98		Define Single Unix V2 things.
+//    __USE_XOPEN2K        Define XPG6 things.
+//    __USE_XOPEN2KXSI     Define XPG6 XSI things.
+//    __USE_XOPEN2K8       Define XPG7 things.
+//    __USE_XOPEN2K8XSI    Define XPG7 XSI things.
+//    __USE_LARGEFILE	Define correct standard I/O things.
+//    __USE_LARGEFILE64	Define LFS things with separate names.
+//    __USE_FILE_OFFSET64	Define 64bit interface as default.
+//    __USE_MISC		Define things from 4.3BSD or System V Unix.
+//    __USE_ATFILE		Define *at interfaces and AT_* constants for them.
+//    __USE_GNU		Define GNU extensions.
+//    __USE_FORTIFY_LEVEL	Additional security measures used, according to level.
+//
+//    The macros `__GNU_LIBRARY__', `__GLIBC__', and `__GLIBC_MINOR__' are
+//    defined by this file unconditionally.  `__GNU_LIBRARY__' is provided
+//    only for compatibility.  All new code should use the other symbols
+//    to test for features.
+//
+//    All macros listed above as possibly being defined by this file are
+//    explicitly undefined if they are not explicitly defined.
+//    Feature-test macros that are not defined by the user or compiler
+//    but are implied by the other feature-test macros defined (or by the
+//    lack of any definitions) are defined by the file.
+//
+//    ISO C feature test macros depend on the definition of the macro
+//    when an affected header is included, not when the first system
+//    header is included, and so they are handled in
+//    <bits/libc-header-start.h>, which does not have a multiple include
+//    guard.  Feature test macros that can be handled from the first
+//    system header included are handled here.
+
+// Undefine everything, so we get a clean slate.
+
+// Suppress kernel-name space pollution unless user expressedly asks
+//    for it.
+
+// Convenience macro to test the version of gcc.
+//    Use like this:
+//    #if __GNUC_PREREQ (2,8)
+//    ... code requiring gcc 2.8 or later ...
+//    #endif
+//    Note: only works for GCC 2.0 and later, because __GNUC_MINOR__ was
+//    added in 2.0.
+
+// Similarly for clang.  Features added to GCC after version 4.2 may
+//    or may not also be available in clang, and clang's definitions of
+//    __GNUC(_MINOR)__ are fixed at 4 and 2 respectively.  Not all such
+//    features can be queried via __has_extension/__has_feature.
+
+// Whether to use feature set F.
+
+// _BSD_SOURCE and _SVID_SOURCE are deprecated aliases for
+//    _DEFAULT_SOURCE.  If _DEFAULT_SOURCE is present we do not
+//    issue a warning; the expectation is that the source is being
+//    transitioned to use the new macro.
+
+// If _GNU_SOURCE was defined by the user, turn on all the other features.
+
+// If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined,
+//    define _DEFAULT_SOURCE.
+
+// This is to enable the ISO C2X extension.
+
+// This is to enable the ISO C11 extension.
+
+// This is to enable the ISO C99 extension.
+
+// This is to enable the ISO C90 Amendment 1:1995 extension.
+
+// If none of the ANSI/POSIX macros are defined, or if _DEFAULT_SOURCE
+//    is defined, use POSIX.1-2008 (or another version depending on
+//    _XOPEN_SOURCE).
+
+// Some C libraries once required _REENTRANT and/or _THREAD_SAFE to be
+//    defined in all multithreaded code.  GNU libc has not required this
+//    for many years.  We now treat them as compatibility synonyms for
+//    _POSIX_C_SOURCE=199506L, which is the earliest level of POSIX with
+//    comprehensive support for multithreaded code.  Using them never
+//    lowers the selected level of POSIX conformance, only raises it.
+
+// The function 'gets' existed in C89, but is impossible to use
+//    safely.  It has been removed from ISO C11 and ISO C++14.  Note: for
+//    compatibility with various implementations of <cstdio>, this test
+//    must consider only the value of __cplusplus when compiling C++.
+
+// GNU formerly extended the scanf functions with modified format
+//    specifiers %as, %aS, and %a[...] that allocate a buffer for the
+//    input using malloc.  This extension conflicts with ISO C99, which
+//    defines %a as a standalone format specifier that reads a floating-
+//    point number; moreover, POSIX.1-2008 provides the same feature
+//    using the modifier letter 'm' instead (%ms, %mS, %m[...]).
+//
+//    We now follow C99 unless GNU extensions are active and the compiler
+//    is specifically in C89 or C++98 mode (strict or not).  For
+//    instance, with GCC, -std=gnu11 will have C99-compliant scanf with
+//    or without -D_GNU_SOURCE, but -std=c89 -D_GNU_SOURCE will have the
+//    old extension.
+
+// Get definitions of __STDC_* predefined macros, if the compiler has
+//    not preincluded this header automatically.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// This macro indicates that the installed library is the GNU C Library.
+//    For historic reasons the value now is 6 and this will stay from now
+//    on.  The use of this variable is deprecated.  Use __GLIBC__ and
+//    __GLIBC_MINOR__ now (see below) when you want to test for a specific
+//    GNU C library version and use the values in <gnu/lib-names.h> to get
+//    the sonames of the shared libraries.
+
+// Major and minor version number of the GNU C library package.  Use
+//    these macros to test for features in specific releases.
+
+// This is here only because every header file already includes this one.
+// Copyright (C) 1992-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// We are almost always included from features.h.
+
+// The GNU libc does not support any K&R compilers or the traditional mode
+//    of ISO C compilers anymore.  Check for some of the combinations not
+//    anymore supported.
+
+// Some user header file might have defined this before.
+
+// All functions, except those with callbacks or those that
+//    synchronize memory, are leaf functions.
+
+// GCC can always grok prototypes.  For C++ programs we add throw()
+//    to help it optimize the function calls.  But this works only with
+//    gcc 2.8.x and egcs.  For gcc 3.2 and up we even mark C functions
+//    as non-throwing using a function attribute since programs can use
+//    the -fexceptions options for C code as well.
+
+// Compilers that are not clang may object to
+//        #if defined __clang__ && __has_extension(...)
+//    even though they do not need to evaluate the right-hand side of the &&.
+
+// These two macros are not used in glibc anymore.  They are kept here
+//    only because some other projects expect the macros to be defined.
+
+// For these things, GCC behaves the ANSI way normally,
+//    and the non-ANSI way under -traditional.
+
+// This is not a typedef so `const __ptr_t' does the right thing.
+
+// C++ needs to know that types and declarations are C, not C++.
+
+// Fortify support.
+
+// Support for flexible arrays.
+//    Headers that should use flexible arrays only if they're "real"
+//    (e.g. only if they won't affect sizeof()) should test
+//    #if __glibc_c99_flexarr_available.
+
+// __asm__ ("xyz") is used throughout the headers to rename functions
+//    at the assembly language level.  This is wrapped by the __REDIRECT
+//    macro, in order to support compilers that can do this some other
+//    way.  When compilers don't support asm-names at all, we have to do
+//    preprocessor tricks instead (which don't have exactly the right
+//    semantics, but it's the best we can do).
+//
+//    Example:
+//    int __REDIRECT(setpgrp, (__pid_t pid, __pid_t pgrp), setpgid);
+
+//
+// #elif __SOME_OTHER_COMPILER__
+//
+// # define __REDIRECT(name, proto, alias) name proto; 	_Pragma("let " #name " = " #alias)
+
+// GCC has various useful declarations that can be made with the
+//    `__attribute__' syntax.  All of the ways we use this do fine if
+//    they are omitted for compilers that don't understand it.
+
+// At some point during the gcc 2.96 development the `malloc' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// Tell the compiler which arguments to an allocation function
+//    indicate the size of the allocation.
+
+// At some point during the gcc 2.96 development the `pure' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// This declaration tells the compiler that the value is constant.
+
+// At some point during the gcc 3.1 development the `used' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// Since version 3.2, gcc allows marking deprecated functions.
+
+// Since version 4.5, gcc also allows one to specify the message printed
+//    when a deprecated function is used.  clang claims to be gcc 4.2, but
+//    may also support this feature.
+
+// At some point during the gcc 2.8 development the `format_arg' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+//    If several `format_arg' attributes are given for the same function, in
+//    gcc-3.0 and older, all but the last one are ignored.  In newer gccs,
+//    all designated arguments are considered.
+
+// At some point during the gcc 2.97 development the `strfmon' format
+//    attribute for functions was introduced.  We don't want to use it
+//    unconditionally (although this would be possible) since it
+//    generates warnings.
+
+// The nonull function attribute allows to mark pointer parameters which
+//    must not be NULL.
+
+// If fortification mode, we warn about unused results of certain
+//    function calls which can lead to problems.
+
+// Forces a function to be always inlined.
+// The Linux kernel defines __always_inline in stddef.h (283d7573), and
+//    it conflicts with this definition.  Therefore undefine it first to
+//    allow either header to be included first.
+
+// Associate error messages with the source location of the call site rather
+//    than with the source location inside the function.
+
+// GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99
+//    inline semantics, unless -fgnu89-inline is used.  Using __GNUC_STDC_INLINE__
+//    or __GNUC_GNU_INLINE is not a good enough check for gcc because gcc versions
+//    older than 4.3 may define these macros and still not guarantee GNU inlining
+//    semantics.
+//
+//    clang++ identifies itself as gcc-4.2, but has support for GNU inlining
+//    semantics, that can be checked for by using the __GNUC_STDC_INLINE_ and
+//    __GNUC_GNU_INLINE__ macro definitions.
+
+// GCC 4.3 and above allow passing all anonymous arguments of an
+//    __extern_always_inline function to some other vararg function.
+
+// It is possible to compile containing GCC extensions even if GCC is
+//    run in pedantic mode if the uses are carefully marked using the
+//    `__extension__' keyword.  But this is not generally available before
+//    version 2.8.
+
+// __restrict is known in EGCS 1.2 and above.
+
+// ISO C99 also allows to declare arrays as non-overlapping.  The syntax is
+//      array_name[restrict]
+//    GCC 3.1 supports this.
+
+// Describes a char array whose address can safely be passed as the first
+//    argument to strncpy and strncat, as the char array is not necessarily
+//    a NUL-terminated string.
+
+// Undefine (also defined in libc-symbols.h).
+// Copies attributes from the declaration or type referenced by
+//    the argument.
+
+// Determine the wordsize from the preprocessor defines.
+
+// Both x86-64 and x32 use the 64-bit system call interface.
+// Properties of long double type.  ldbl-96 version.
+//    Copyright (C) 2016-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License  published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// long double is distinct from double, so there is nothing to
+//    define here.
+
+// __glibc_macro_warning (MESSAGE) issues warning MESSAGE.  This is
+//    intended for use in preprocessor macros.
+//
+//    Note: MESSAGE must be a _single_ string; concatenation of string
+//    literals is not supported.
+
+// Generic selection (ISO C11) is a C-only feature, available in GCC
+//    since version 4.9.  Previous versions do not provide generic
+//    selection, even though they might set __STDC_VERSION__ to 201112L,
+//    when in -std=c11 mode.  Thus, we must check for !defined __GNUC__
+//    when testing __STDC_VERSION__ for generic selection support.
+//    On the other hand, Clang also defines __GNUC__, so a clang-specific
+//    check is required to enable the use of generic selection.
+
+// If we don't have __REDIRECT, prototypes will be missing if
+//    __USE_FILE_OFFSET64 but not __USE_LARGEFILE[64].
+
+// Decide whether we can define 'extern inline' functions in headers.
+
+// This is here only because every header file already includes this one.
+//    Get the definitions of all the appropriate `__stub_FUNCTION' symbols.
+//    <gnu/stubs.h> contains `#define __stub_FUNCTION' when FUNCTION is a stub
+//    that will always return failure (and set errno to ENOSYS).
+// This file is automatically generated.
+//    This file selects the right generated file of `__stub_FUNCTION' macros
+//    based on the architecture being compiled for.
+
+// This file is automatically generated.
+//    It defines a symbol `__stub_FUNCTION' for each function
+//    in the C library which is a stub, meaning it will fail
+//    every time called, usually setting errno to ENOSYS.
+
+// We need `pid_t'.
+// bits/types.h -- definitions of __*_t types underlying *_t types.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Never include this file directly; use <sys/types.h> instead.
+
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Determine the wordsize from the preprocessor defines.
+
+// Both x86-64 and x32 use the 64-bit system call interface.
+// Bit size of the time_t type at glibc build time, x86-64 and x32 case.
+//    Copyright (C) 2018-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// For others, time size is word size.
+
+// Convenience types.
+type X__u_char = uint8   /* types.h:31:23 */
+type X__u_short = uint16 /* types.h:32:28 */
+type X__u_int = uint32   /* types.h:33:22 */
+type X__u_long = uint64  /* types.h:34:27 */
+
+// Fixed-size types, underlying types depend on word size and compiler.
+type X__int8_t = int8     /* types.h:37:21 */
+type X__uint8_t = uint8   /* types.h:38:23 */
+type X__int16_t = int16   /* types.h:39:26 */
+type X__uint16_t = uint16 /* types.h:40:28 */
+type X__int32_t = int32   /* types.h:41:20 */
+type X__uint32_t = uint32 /* types.h:42:22 */
+type X__int64_t = int64   /* types.h:44:25 */
+type X__uint64_t = uint64 /* types.h:45:27 */
+
+// Smallest types with at least a given width.
+type X__int_least8_t = X__int8_t     /* types.h:52:18 */
+type X__uint_least8_t = X__uint8_t   /* types.h:53:19 */
+type X__int_least16_t = X__int16_t   /* types.h:54:19 */
+type X__uint_least16_t = X__uint16_t /* types.h:55:20 */
+type X__int_least32_t = X__int32_t   /* types.h:56:19 */
+type X__uint_least32_t = X__uint32_t /* types.h:57:20 */
+type X__int_least64_t = X__int64_t   /* types.h:58:19 */
+type X__uint_least64_t = X__uint64_t /* types.h:59:20 */
+
+// quad_t is also 64 bits.
+type X__quad_t = int64    /* types.h:63:18 */
+type X__u_quad_t = uint64 /* types.h:64:27 */
+
+// Largest integral types.
+type X__intmax_t = int64   /* types.h:72:18 */
+type X__uintmax_t = uint64 /* types.h:73:27 */
+
+// The machine-dependent file <bits/typesizes.h> defines __*_T_TYPE
+//    macros for each of the OS types we define below.  The definitions
+//    of those macros must use the following macros for underlying types.
+//    We define __S<SIZE>_TYPE and __U<SIZE>_TYPE for the signed and unsigned
+//    variants of each of the following integer types on this machine.
+//
+// 	16		-- "natural" 16-bit type (always short)
+// 	32		-- "natural" 32-bit type (always int)
+// 	64		-- "natural" 64-bit type (long or long long)
+// 	LONG32		-- 32-bit type, traditionally long
+// 	QUAD		-- 64-bit type, traditionally long long
+// 	WORD		-- natural type of __WORDSIZE bits (int or long)
+// 	LONGWORD	-- type of __WORDSIZE bits, traditionally long
+//
+//    We distinguish WORD/LONGWORD, 32/LONG32, and 64/QUAD so that the
+//    conventional uses of `long' or `long long' type modifiers match the
+//    types we define, even when a less-adorned type would be the same size.
+//    This matters for (somewhat) portably writing printf/scanf formats for
+//    these types, where using the appropriate l or ll format modifiers can
+//    make the typedefs and the formats match up across all GNU platforms.  If
+//    we used `long' when it's 64 bits where `long long' is expected, then the
+//    compiler would warn about the formats not matching the argument types,
+//    and the programmer changing them to shut up the compiler would break the
+//    program's portability.
+//
+//    Here we assume what is presently the case in all the GCC configurations
+//    we support: long long is always 64 bits, long is always word/address size,
+//    and int is always 32 bits.
+
+// No need to mark the typedef with __extension__.
+// bits/typesizes.h -- underlying types for *_t.  Linux/x86-64 version.
+//    Copyright (C) 2012-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// See <bits/types.h> for the meaning of these macros.  This file exists so
+//    that <bits/types.h> need not vary across different GNU platforms.
+
+// X32 kernel interface is 64-bit.
+
+// Tell the libc code that off_t and off64_t are actually the same type
+//    for all ABI purposes, even if possibly expressed as different base types
+//    for C type-checking purposes.
+
+// Same for ino_t and ino64_t.
+
+// And for __rlim_t and __rlim64_t.
+
+// And for fsblkcnt_t, fsblkcnt64_t, fsfilcnt_t and fsfilcnt64_t.
+
+// Number of descriptors that can fit in an `fd_set'.
+
+// bits/time64.h -- underlying types for __time64_t.  Generic version.
+//    Copyright (C) 2018-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Define __TIME64_T_TYPE so that it is always a 64-bit type.
+
+// If we already have 64-bit time type then use it.
+
+type X__dev_t = uint64                     /* types.h:145:25 */ // Type of device numbers.
+type X__uid_t = uint32                     /* types.h:146:25 */ // Type of user identifications.
+type X__gid_t = uint32                     /* types.h:147:25 */ // Type of group identifications.
+type X__ino_t = uint64                     /* types.h:148:25 */ // Type of file serial numbers.
+type X__ino64_t = uint64                   /* types.h:149:27 */ // Type of file serial numbers (LFS).
+type X__mode_t = uint32                    /* types.h:150:26 */ // Type of file attribute bitmasks.
+type X__nlink_t = uint64                   /* types.h:151:27 */ // Type of file link counts.
+type X__off_t = int64                      /* types.h:152:25 */ // Type of file sizes and offsets.
+type X__off64_t = int64                    /* types.h:153:27 */ // Type of file sizes and offsets (LFS).
+type X__pid_t = int32                      /* types.h:154:25 */ // Type of process identifications.
+type X__fsid_t = struct{ F__val [2]int32 } /* types.h:155:26 */ // Type of file system IDs.
+type X__clock_t = int64                    /* types.h:156:27 */ // Type of CPU usage counts.
+type X__rlim_t = uint64                    /* types.h:157:26 */ // Type for resource measurement.
+type X__rlim64_t = uint64                  /* types.h:158:28 */ // Type for resource measurement (LFS).
+type X__id_t = uint32                      /* types.h:159:24 */ // General type for IDs.
+type X__time_t = int64                     /* types.h:160:26 */ // Seconds since the Epoch.
+type X__useconds_t = uint32                /* types.h:161:30 */ // Count of microseconds.
+type X__suseconds_t = int64                /* types.h:162:31 */ // Signed count of microseconds.
+
+type X__daddr_t = int32 /* types.h:164:27 */ // The type of a disk address.
+type X__key_t = int32   /* types.h:165:25 */ // Type of an IPC key.
+
+// Clock ID used in clock and timer functions.
+type X__clockid_t = int32 /* types.h:168:29 */
+
+// Timer ID returned by `timer_create'.
+type X__timer_t = uintptr /* types.h:171:12 */
+
+// Type to represent block size.
+type X__blksize_t = int64 /* types.h:174:29 */
+
+// Types from the Large File Support interface.
+
+// Type to count number of disk blocks.
+type X__blkcnt_t = int64   /* types.h:179:28 */
+type X__blkcnt64_t = int64 /* types.h:180:30 */
+
+// Type to count file system blocks.
+type X__fsblkcnt_t = uint64   /* types.h:183:30 */
+type X__fsblkcnt64_t = uint64 /* types.h:184:32 */
+
+// Type to count file system nodes.
+type X__fsfilcnt_t = uint64   /* types.h:187:30 */
+type X__fsfilcnt64_t = uint64 /* types.h:188:32 */
+
+// Type of miscellaneous file system fields.
+type X__fsword_t = int64 /* types.h:191:28 */
+
+type X__ssize_t = int64 /* types.h:193:27 */ // Type of a byte count, or error.
+
+// Signed long type used in system calls.
+type X__syscall_slong_t = int64 /* types.h:196:33 */
+// Unsigned long type used in system calls.
+type X__syscall_ulong_t = uint64 /* types.h:198:33 */
+
+// These few don't really vary by system, they always correspond
+//
+//	to one of the other defined types.
+type X__loff_t = X__off64_t /* types.h:202:19 */ // Type of file sizes and offsets (LFS).
+type X__caddr_t = uintptr   /* types.h:203:14 */
+
+// Duplicates info from stdint.h but this is used in unistd.h.
+type X__intptr_t = int64 /* types.h:206:25 */
+
+// Duplicate info from sys/socket.h.
+type X__socklen_t = uint32 /* types.h:209:23 */
+
+// C99: An integer type that can be accessed as an atomic entity,
+//
+//	even in the presence of asynchronous interrupts.
+//	It is not currently necessary for this to be machine-specific.
+type X__sig_atomic_t = int32 /* types.h:214:13 */
+
+// Seconds since the Epoch, visible to user code when time_t is too
+//    narrow only for consistency with the old way of widening too-narrow
+//    types.  User code should never use __time64_t.
+
+type Pid_t = X__pid_t /* termios.h:30:17 */
+
+// Get the system-dependent definitions of `struct termios', `tcflag_t',
+//    `cc_t', `speed_t', and all the macros specifying the flag bits.
+// termios type and macro definitions.  Linux version.
+//    Copyright (C) 1993-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+type Cc_t = uint8      /* termios.h:23:23 */
+type Speed_t = uint32  /* termios.h:24:22 */
+type Tcflag_t = uint32 /* termios.h:25:22 */
+
+// struct termios definition.  Linux/generic version.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+type Termios = struct {
+	Fc_iflag     Tcflag_t
+	Fc_oflag     Tcflag_t
+	Fc_cflag     Tcflag_t
+	Fc_lflag     Tcflag_t
+	Fc_line      Cc_t
+	Fc_cc        [32]Cc_t
+	F__ccgo_pad1 [3]byte
+	Fc_ispeed    Speed_t
+	Fc_ospeed    Speed_t
+} /* termios-struct.h:24:1 */
+
+// -
+// Copyright (c) 1982, 1986, 1993
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttydefaults.h	8.4 (Berkeley) 1/21/94
+
+// System wide defaults for terminal state.  Linux version.
+
+// Defaults on "first" open.
+
+// Control Character Defaults
+// compat
+
+// PROTECTED INCLUSION ENDS HERE
+
+// #define TTYDEFCHARS to include an array of default control characters.
+
+var _ int8 /* gen.c:2:13: */
diff --git a/vendor/modernc.org/libc/termios/termios_linux_arm.go b/vendor/modernc.org/libc/termios/termios_linux_arm.go
new file mode 100644
index 0000000..0283bb4
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/termios_linux_arm.go
@@ -0,0 +1,1066 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o termios/termios_linux_arm.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+import (
+	"math"
+	"reflect"
+	"sync/atomic"
+	"unsafe"
+)
+
+var _ = math.Pi
+var _ reflect.Kind
+var _ atomic.Value
+var _ unsafe.Pointer
+
+const (
+	B0                             = 0000000
+	B1000000                       = 0010010
+	B110                           = 0000003
+	B115200                        = 0010002
+	B1152000                       = 0010011
+	B1200                          = 0000011
+	B134                           = 0000004
+	B150                           = 0000005
+	B1500000                       = 0010012
+	B1800                          = 0000012
+	B19200                         = 0000016
+	B200                           = 0000006
+	B2000000                       = 0010013
+	B230400                        = 0010003
+	B2400                          = 0000013
+	B2500000                       = 0010014
+	B300                           = 0000007
+	B3000000                       = 0010015
+	B3500000                       = 0010016
+	B38400                         = 0000017
+	B4000000                       = 0010017
+	B460800                        = 0010004
+	B4800                          = 0000014
+	B50                            = 0000001
+	B500000                        = 0010005
+	B57600                         = 0010001
+	B576000                        = 0010006
+	B600                           = 0000010
+	B75                            = 0000002
+	B921600                        = 0010007
+	B9600                          = 0000015
+	BRKINT                         = 0000002
+	BS0                            = 0000000
+	BS1                            = 0020000
+	BSDLY                          = 0020000
+	CBAUD                          = 000000010017
+	CBAUDEX                        = 000000010000
+	CBRK                           = 0
+	CDISCARD                       = 15
+	CDSUSP                         = 25
+	CEOF                           = 4
+	CEOL                           = 0
+	CEOT                           = 4
+	CERASE                         = 0177
+	CFLUSH                         = 15
+	CIBAUD                         = 002003600000
+	CINTR                          = 3
+	CKILL                          = 21
+	CLNEXT                         = 22
+	CLOCAL                         = 0004000
+	CMIN                           = 1
+	CMSPAR                         = 010000000000
+	CQUIT                          = 034
+	CR0                            = 0000000
+	CR1                            = 0001000
+	CR2                            = 0002000
+	CR3                            = 0003000
+	CRDLY                          = 0003000
+	CREAD                          = 0000200
+	CREPRINT                       = 18
+	CRPRNT                         = 18
+	CRTSCTS                        = 020000000000
+	CS5                            = 0000000
+	CS6                            = 0000020
+	CS7                            = 0000040
+	CS8                            = 0000060
+	CSIZE                          = 0000060
+	CSTART                         = 17
+	CSTATUS                        = 0
+	CSTOP                          = 19
+	CSTOPB                         = 0000100
+	CSUSP                          = 26
+	CTIME                          = 0
+	CWERASE                        = 23
+	ECHO                           = 0000010
+	ECHOCTL                        = 0001000
+	ECHOE                          = 0000020
+	ECHOK                          = 0000040
+	ECHOKE                         = 0004000
+	ECHONL                         = 0000100
+	ECHOPRT                        = 0002000
+	EXTA                           = 14
+	EXTB                           = 15
+	EXTPROC                        = 0200000
+	FF0                            = 0000000
+	FF1                            = 0100000
+	FFDLY                          = 0100000
+	FLUSHO                         = 0010000
+	HUPCL                          = 0002000
+	ICANON                         = 0000002
+	ICRNL                          = 0000400
+	IEXTEN                         = 0100000
+	IGNBRK                         = 0000001
+	IGNCR                          = 0000200
+	IGNPAR                         = 0000004
+	IMAXBEL                        = 0020000
+	INLCR                          = 0000100
+	INPCK                          = 0000020
+	ISIG                           = 0000001
+	ISTRIP                         = 0000040
+	IUCLC                          = 0001000
+	IUTF8                          = 0040000
+	IXANY                          = 0004000
+	IXOFF                          = 0010000
+	IXON                           = 0002000
+	NCCS                           = 32
+	NL0                            = 0000000
+	NL1                            = 0000400
+	NLDLY                          = 0000400
+	NOFLSH                         = 0000200
+	OCRNL                          = 0000010
+	OFDEL                          = 0000200
+	OFILL                          = 0000100
+	OLCUC                          = 0000002
+	ONLCR                          = 0000004
+	ONLRET                         = 0000040
+	ONOCR                          = 0000020
+	OPOST                          = 0000001
+	PARENB                         = 0000400
+	PARMRK                         = 0000010
+	PARODD                         = 0001000
+	PENDIN                         = 0040000
+	TAB0                           = 0000000
+	TAB1                           = 0004000
+	TAB2                           = 0010000
+	TAB3                           = 0014000
+	TABDLY                         = 0014000
+	TCIFLUSH                       = 0
+	TCIOFF                         = 2
+	TCIOFLUSH                      = 2
+	TCION                          = 3
+	TCOFLUSH                       = 1
+	TCOOFF                         = 0
+	TCOON                          = 1
+	TCSADRAIN                      = 1
+	TCSAFLUSH                      = 2
+	TCSANOW                        = 0
+	TIOCSER_TEMT                   = 0x01
+	TOSTOP                         = 0000400
+	TTYDEF_CFLAG                   = 1440
+	TTYDEF_IFLAG                   = 11554
+	TTYDEF_LFLAG                   = 35355
+	TTYDEF_OFLAG                   = 6149
+	TTYDEF_SPEED                   = 13
+	VDISCARD                       = 13
+	VEOF                           = 4
+	VEOL                           = 11
+	VEOL2                          = 16
+	VERASE                         = 2
+	VINTR                          = 0
+	VKILL                          = 3
+	VLNEXT                         = 15
+	VMIN                           = 6
+	VQUIT                          = 1
+	VREPRINT                       = 12
+	VSTART                         = 8
+	VSTOP                          = 9
+	VSUSP                          = 10
+	VSWTC                          = 7
+	VT0                            = 0000000
+	VT1                            = 0040000
+	VTDLY                          = 0040000
+	VTIME                          = 5
+	VWERASE                        = 14
+	XCASE                          = 0000004
+	XTABS                          = 0014000
+	X_ATFILE_SOURCE                = 1
+	X_BITS_TIME64_H                = 1
+	X_BITS_TYPESIZES_H             = 1
+	X_BITS_TYPES_H                 = 1
+	X_DEFAULT_SOURCE               = 1
+	X_FEATURES_H                   = 1
+	X_FILE_OFFSET_BITS             = 64
+	X_HAVE_STRUCT_TERMIOS_C_ISPEED = 1
+	X_HAVE_STRUCT_TERMIOS_C_OSPEED = 1
+	X_POSIX_C_SOURCE               = 200809
+	X_POSIX_SOURCE                 = 1
+	X_STDC_PREDEF_H                = 1
+	X_SYS_CDEFS_H                  = 1
+	X_SYS_TTYDEFAULTS_H_           = 0
+	X_TERMIOS_H                    = 1
+	Linux                          = 1
+	Unix                           = 1
+)
+
+type Ptrdiff_t = int32 /* <builtin>:3:26 */
+
+type Size_t = uint32 /* <builtin>:9:23 */
+
+type Wchar_t = uint32 /* <builtin>:15:24 */
+
+type X__builtin_va_list = uintptr /* <builtin>:46:14 */
+type X__float128 = float64        /* <builtin>:47:21 */
+
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+//	POSIX Standard: 7.1-2 General Terminal Interface	<termios.h>
+
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// These are defined by the user (or the compiler)
+//    to specify the desired environment:
+//
+//    __STRICT_ANSI__	ISO Standard C.
+//    _ISOC99_SOURCE	Extensions to ISO C89 from ISO C99.
+//    _ISOC11_SOURCE	Extensions to ISO C99 from ISO C11.
+//    _ISOC2X_SOURCE	Extensions to ISO C99 from ISO C2X.
+//    __STDC_WANT_LIB_EXT2__
+// 			Extensions to ISO C99 from TR 27431-2:2010.
+//    __STDC_WANT_IEC_60559_BFP_EXT__
+// 			Extensions to ISO C11 from TS 18661-1:2014.
+//    __STDC_WANT_IEC_60559_FUNCS_EXT__
+// 			Extensions to ISO C11 from TS 18661-4:2015.
+//    __STDC_WANT_IEC_60559_TYPES_EXT__
+// 			Extensions to ISO C11 from TS 18661-3:2015.
+//
+//    _POSIX_SOURCE	IEEE Std 1003.1.
+//    _POSIX_C_SOURCE	If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2;
+// 			if >=199309L, add IEEE Std 1003.1b-1993;
+// 			if >=199506L, add IEEE Std 1003.1c-1995;
+// 			if >=200112L, all of IEEE 1003.1-2004
+// 			if >=200809L, all of IEEE 1003.1-2008
+//    _XOPEN_SOURCE	Includes POSIX and XPG things.  Set to 500 if
+// 			Single Unix conformance is wanted, to 600 for the
+// 			sixth revision, to 700 for the seventh revision.
+//    _XOPEN_SOURCE_EXTENDED XPG things and X/Open Unix extensions.
+//    _LARGEFILE_SOURCE	Some more functions for correct standard I/O.
+//    _LARGEFILE64_SOURCE	Additional functionality from LFS for large files.
+//    _FILE_OFFSET_BITS=N	Select default filesystem interface.
+//    _ATFILE_SOURCE	Additional *at interfaces.
+//    _GNU_SOURCE		All of the above, plus GNU extensions.
+//    _DEFAULT_SOURCE	The default set of features (taking precedence over
+// 			__STRICT_ANSI__).
+//
+//    _FORTIFY_SOURCE	Add security hardening to many library functions.
+// 			Set to 1 or 2; 2 performs stricter checks than 1.
+//
+//    _REENTRANT, _THREAD_SAFE
+// 			Obsolete; equivalent to _POSIX_C_SOURCE=199506L.
+//
+//    The `-ansi' switch to the GNU C compiler, and standards conformance
+//    options such as `-std=c99', define __STRICT_ANSI__.  If none of
+//    these are defined, or if _DEFAULT_SOURCE is defined, the default is
+//    to have _POSIX_SOURCE set to one and _POSIX_C_SOURCE set to
+//    200809L, as well as enabling miscellaneous functions from BSD and
+//    SVID.  If more than one of these are defined, they accumulate.  For
+//    example __STRICT_ANSI__, _POSIX_SOURCE and _POSIX_C_SOURCE together
+//    give you ISO C, 1003.1, and 1003.2, but nothing else.
+//
+//    These are defined by this file and are used by the
+//    header files to decide what to declare or define:
+//
+//    __GLIBC_USE (F)	Define things from feature set F.  This is defined
+// 			to 1 or 0; the subsequent macros are either defined
+// 			or undefined, and those tests should be moved to
+// 			__GLIBC_USE.
+//    __USE_ISOC11		Define ISO C11 things.
+//    __USE_ISOC99		Define ISO C99 things.
+//    __USE_ISOC95		Define ISO C90 AMD1 (C95) things.
+//    __USE_ISOCXX11	Define ISO C++11 things.
+//    __USE_POSIX		Define IEEE Std 1003.1 things.
+//    __USE_POSIX2		Define IEEE Std 1003.2 things.
+//    __USE_POSIX199309	Define IEEE Std 1003.1, and .1b things.
+//    __USE_POSIX199506	Define IEEE Std 1003.1, .1b, .1c and .1i things.
+//    __USE_XOPEN		Define XPG things.
+//    __USE_XOPEN_EXTENDED	Define X/Open Unix things.
+//    __USE_UNIX98		Define Single Unix V2 things.
+//    __USE_XOPEN2K        Define XPG6 things.
+//    __USE_XOPEN2KXSI     Define XPG6 XSI things.
+//    __USE_XOPEN2K8       Define XPG7 things.
+//    __USE_XOPEN2K8XSI    Define XPG7 XSI things.
+//    __USE_LARGEFILE	Define correct standard I/O things.
+//    __USE_LARGEFILE64	Define LFS things with separate names.
+//    __USE_FILE_OFFSET64	Define 64bit interface as default.
+//    __USE_MISC		Define things from 4.3BSD or System V Unix.
+//    __USE_ATFILE		Define *at interfaces and AT_* constants for them.
+//    __USE_GNU		Define GNU extensions.
+//    __USE_FORTIFY_LEVEL	Additional security measures used, according to level.
+//
+//    The macros `__GNU_LIBRARY__', `__GLIBC__', and `__GLIBC_MINOR__' are
+//    defined by this file unconditionally.  `__GNU_LIBRARY__' is provided
+//    only for compatibility.  All new code should use the other symbols
+//    to test for features.
+//
+//    All macros listed above as possibly being defined by this file are
+//    explicitly undefined if they are not explicitly defined.
+//    Feature-test macros that are not defined by the user or compiler
+//    but are implied by the other feature-test macros defined (or by the
+//    lack of any definitions) are defined by the file.
+//
+//    ISO C feature test macros depend on the definition of the macro
+//    when an affected header is included, not when the first system
+//    header is included, and so they are handled in
+//    <bits/libc-header-start.h>, which does not have a multiple include
+//    guard.  Feature test macros that can be handled from the first
+//    system header included are handled here.
+
+// Undefine everything, so we get a clean slate.
+
+// Suppress kernel-name space pollution unless user expressedly asks
+//    for it.
+
+// Convenience macro to test the version of gcc.
+//    Use like this:
+//    #if __GNUC_PREREQ (2,8)
+//    ... code requiring gcc 2.8 or later ...
+//    #endif
+//    Note: only works for GCC 2.0 and later, because __GNUC_MINOR__ was
+//    added in 2.0.
+
+// Similarly for clang.  Features added to GCC after version 4.2 may
+//    or may not also be available in clang, and clang's definitions of
+//    __GNUC(_MINOR)__ are fixed at 4 and 2 respectively.  Not all such
+//    features can be queried via __has_extension/__has_feature.
+
+// Whether to use feature set F.
+
+// _BSD_SOURCE and _SVID_SOURCE are deprecated aliases for
+//    _DEFAULT_SOURCE.  If _DEFAULT_SOURCE is present we do not
+//    issue a warning; the expectation is that the source is being
+//    transitioned to use the new macro.
+
+// If _GNU_SOURCE was defined by the user, turn on all the other features.
+
+// If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined,
+//    define _DEFAULT_SOURCE.
+
+// This is to enable the ISO C2X extension.
+
+// This is to enable the ISO C11 extension.
+
+// This is to enable the ISO C99 extension.
+
+// This is to enable the ISO C90 Amendment 1:1995 extension.
+
+// If none of the ANSI/POSIX macros are defined, or if _DEFAULT_SOURCE
+//    is defined, use POSIX.1-2008 (or another version depending on
+//    _XOPEN_SOURCE).
+
+// Some C libraries once required _REENTRANT and/or _THREAD_SAFE to be
+//    defined in all multithreaded code.  GNU libc has not required this
+//    for many years.  We now treat them as compatibility synonyms for
+//    _POSIX_C_SOURCE=199506L, which is the earliest level of POSIX with
+//    comprehensive support for multithreaded code.  Using them never
+//    lowers the selected level of POSIX conformance, only raises it.
+
+// The function 'gets' existed in C89, but is impossible to use
+//    safely.  It has been removed from ISO C11 and ISO C++14.  Note: for
+//    compatibility with various implementations of <cstdio>, this test
+//    must consider only the value of __cplusplus when compiling C++.
+
+// GNU formerly extended the scanf functions with modified format
+//    specifiers %as, %aS, and %a[...] that allocate a buffer for the
+//    input using malloc.  This extension conflicts with ISO C99, which
+//    defines %a as a standalone format specifier that reads a floating-
+//    point number; moreover, POSIX.1-2008 provides the same feature
+//    using the modifier letter 'm' instead (%ms, %mS, %m[...]).
+//
+//    We now follow C99 unless GNU extensions are active and the compiler
+//    is specifically in C89 or C++98 mode (strict or not).  For
+//    instance, with GCC, -std=gnu11 will have C99-compliant scanf with
+//    or without -D_GNU_SOURCE, but -std=c89 -D_GNU_SOURCE will have the
+//    old extension.
+
+// Get definitions of __STDC_* predefined macros, if the compiler has
+//    not preincluded this header automatically.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// This macro indicates that the installed library is the GNU C Library.
+//    For historic reasons the value now is 6 and this will stay from now
+//    on.  The use of this variable is deprecated.  Use __GLIBC__ and
+//    __GLIBC_MINOR__ now (see below) when you want to test for a specific
+//    GNU C library version and use the values in <gnu/lib-names.h> to get
+//    the sonames of the shared libraries.
+
+// Major and minor version number of the GNU C library package.  Use
+//    these macros to test for features in specific releases.
+
+// This is here only because every header file already includes this one.
+// Copyright (C) 1992-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// We are almost always included from features.h.
+
+// The GNU libc does not support any K&R compilers or the traditional mode
+//    of ISO C compilers anymore.  Check for some of the combinations not
+//    anymore supported.
+
+// Some user header file might have defined this before.
+
+// All functions, except those with callbacks or those that
+//    synchronize memory, are leaf functions.
+
+// GCC can always grok prototypes.  For C++ programs we add throw()
+//    to help it optimize the function calls.  But this works only with
+//    gcc 2.8.x and egcs.  For gcc 3.2 and up we even mark C functions
+//    as non-throwing using a function attribute since programs can use
+//    the -fexceptions options for C code as well.
+
+// Compilers that are not clang may object to
+//        #if defined __clang__ && __has_extension(...)
+//    even though they do not need to evaluate the right-hand side of the &&.
+
+// These two macros are not used in glibc anymore.  They are kept here
+//    only because some other projects expect the macros to be defined.
+
+// For these things, GCC behaves the ANSI way normally,
+//    and the non-ANSI way under -traditional.
+
+// This is not a typedef so `const __ptr_t' does the right thing.
+
+// C++ needs to know that types and declarations are C, not C++.
+
+// Fortify support.
+
+// Support for flexible arrays.
+//    Headers that should use flexible arrays only if they're "real"
+//    (e.g. only if they won't affect sizeof()) should test
+//    #if __glibc_c99_flexarr_available.
+
+// __asm__ ("xyz") is used throughout the headers to rename functions
+//    at the assembly language level.  This is wrapped by the __REDIRECT
+//    macro, in order to support compilers that can do this some other
+//    way.  When compilers don't support asm-names at all, we have to do
+//    preprocessor tricks instead (which don't have exactly the right
+//    semantics, but it's the best we can do).
+//
+//    Example:
+//    int __REDIRECT(setpgrp, (__pid_t pid, __pid_t pgrp), setpgid);
+
+//
+// #elif __SOME_OTHER_COMPILER__
+//
+// # define __REDIRECT(name, proto, alias) name proto; 	_Pragma("let " #name " = " #alias)
+
+// GCC has various useful declarations that can be made with the
+//    `__attribute__' syntax.  All of the ways we use this do fine if
+//    they are omitted for compilers that don't understand it.
+
+// At some point during the gcc 2.96 development the `malloc' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// Tell the compiler which arguments to an allocation function
+//    indicate the size of the allocation.
+
+// At some point during the gcc 2.96 development the `pure' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// This declaration tells the compiler that the value is constant.
+
+// At some point during the gcc 3.1 development the `used' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// Since version 3.2, gcc allows marking deprecated functions.
+
+// Since version 4.5, gcc also allows one to specify the message printed
+//    when a deprecated function is used.  clang claims to be gcc 4.2, but
+//    may also support this feature.
+
+// At some point during the gcc 2.8 development the `format_arg' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+//    If several `format_arg' attributes are given for the same function, in
+//    gcc-3.0 and older, all but the last one are ignored.  In newer gccs,
+//    all designated arguments are considered.
+
+// At some point during the gcc 2.97 development the `strfmon' format
+//    attribute for functions was introduced.  We don't want to use it
+//    unconditionally (although this would be possible) since it
+//    generates warnings.
+
+// The nonull function attribute allows to mark pointer parameters which
+//    must not be NULL.
+
+// If fortification mode, we warn about unused results of certain
+//    function calls which can lead to problems.
+
+// Forces a function to be always inlined.
+// The Linux kernel defines __always_inline in stddef.h (283d7573), and
+//    it conflicts with this definition.  Therefore undefine it first to
+//    allow either header to be included first.
+
+// Associate error messages with the source location of the call site rather
+//    than with the source location inside the function.
+
+// GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99
+//    inline semantics, unless -fgnu89-inline is used.  Using __GNUC_STDC_INLINE__
+//    or __GNUC_GNU_INLINE is not a good enough check for gcc because gcc versions
+//    older than 4.3 may define these macros and still not guarantee GNU inlining
+//    semantics.
+//
+//    clang++ identifies itself as gcc-4.2, but has support for GNU inlining
+//    semantics, that can be checked for by using the __GNUC_STDC_INLINE_ and
+//    __GNUC_GNU_INLINE__ macro definitions.
+
+// GCC 4.3 and above allow passing all anonymous arguments of an
+//    __extern_always_inline function to some other vararg function.
+
+// It is possible to compile containing GCC extensions even if GCC is
+//    run in pedantic mode if the uses are carefully marked using the
+//    `__extension__' keyword.  But this is not generally available before
+//    version 2.8.
+
+// __restrict is known in EGCS 1.2 and above.
+
+// ISO C99 also allows to declare arrays as non-overlapping.  The syntax is
+//      array_name[restrict]
+//    GCC 3.1 supports this.
+
+// Describes a char array whose address can safely be passed as the first
+//    argument to strncpy and strncat, as the char array is not necessarily
+//    a NUL-terminated string.
+
+// Undefine (also defined in libc-symbols.h).
+// Copies attributes from the declaration or type referenced by
+//    the argument.
+
+// Copyright (C) 1999-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Properties of long double type.
+//    Copyright (C) 2016-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License  published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// This header is included by <sys/cdefs.h>.
+//
+//    If long double is ABI-compatible with double, it should define
+//    __NO_LONG_DOUBLE_MATH to 1; otherwise, it should leave
+//    __NO_LONG_DOUBLE_MATH undefined.
+//
+//    If this build of the GNU C Library supports both long double
+//    ABI-compatible with double and some other long double format not
+//    ABI-compatible with double, it should define
+//    __LONG_DOUBLE_MATH_OPTIONAL to 1; otherwise, it should leave
+//    __LONG_DOUBLE_MATH_OPTIONAL undefined.
+//
+//    If __NO_LONG_DOUBLE_MATH is already defined, this header must not
+//    define anything; this is needed to work with the definition of
+//    __NO_LONG_DOUBLE_MATH in nldbl-compat.h.
+
+// In the default version of this header, long double is
+//    ABI-compatible with double.
+
+// __glibc_macro_warning (MESSAGE) issues warning MESSAGE.  This is
+//    intended for use in preprocessor macros.
+//
+//    Note: MESSAGE must be a _single_ string; concatenation of string
+//    literals is not supported.
+
+// Generic selection (ISO C11) is a C-only feature, available in GCC
+//    since version 4.9.  Previous versions do not provide generic
+//    selection, even though they might set __STDC_VERSION__ to 201112L,
+//    when in -std=c11 mode.  Thus, we must check for !defined __GNUC__
+//    when testing __STDC_VERSION__ for generic selection support.
+//    On the other hand, Clang also defines __GNUC__, so a clang-specific
+//    check is required to enable the use of generic selection.
+
+// If we don't have __REDIRECT, prototypes will be missing if
+//    __USE_FILE_OFFSET64 but not __USE_LARGEFILE[64].
+
+// Decide whether we can define 'extern inline' functions in headers.
+
+// This is here only because every header file already includes this one.
+//    Get the definitions of all the appropriate `__stub_FUNCTION' symbols.
+//    <gnu/stubs.h> contains `#define __stub_FUNCTION' when FUNCTION is a stub
+//    that will always return failure (and set errno to ENOSYS).
+// This file is automatically generated.
+//    This file selects the right generated file of `__stub_FUNCTION' macros
+//    based on the architecture being compiled for.
+
+// This file is automatically generated.
+//    It defines a symbol `__stub_FUNCTION' for each function
+//    in the C library which is a stub, meaning it will fail
+//    every time called, usually setting errno to ENOSYS.
+
+// We need `pid_t'.
+// bits/types.h -- definitions of __*_t types underlying *_t types.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Never include this file directly; use <sys/types.h> instead.
+
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Copyright (C) 1999-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Bit size of the time_t type at glibc build time, general case.
+//    Copyright (C) 2018-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Copyright (C) 1999-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Size in bits of the 'time_t' type of the default ABI.
+
+// Convenience types.
+type X__u_char = uint8   /* types.h:31:23 */
+type X__u_short = uint16 /* types.h:32:28 */
+type X__u_int = uint32   /* types.h:33:22 */
+type X__u_long = uint32  /* types.h:34:27 */
+
+// Fixed-size types, underlying types depend on word size and compiler.
+type X__int8_t = int8     /* types.h:37:21 */
+type X__uint8_t = uint8   /* types.h:38:23 */
+type X__int16_t = int16   /* types.h:39:26 */
+type X__uint16_t = uint16 /* types.h:40:28 */
+type X__int32_t = int32   /* types.h:41:20 */
+type X__uint32_t = uint32 /* types.h:42:22 */
+type X__int64_t = int64   /* types.h:47:44 */
+type X__uint64_t = uint64 /* types.h:48:46 */
+
+// Smallest types with at least a given width.
+type X__int_least8_t = X__int8_t     /* types.h:52:18 */
+type X__uint_least8_t = X__uint8_t   /* types.h:53:19 */
+type X__int_least16_t = X__int16_t   /* types.h:54:19 */
+type X__uint_least16_t = X__uint16_t /* types.h:55:20 */
+type X__int_least32_t = X__int32_t   /* types.h:56:19 */
+type X__uint_least32_t = X__uint32_t /* types.h:57:20 */
+type X__int_least64_t = X__int64_t   /* types.h:58:19 */
+type X__uint_least64_t = X__uint64_t /* types.h:59:20 */
+
+// quad_t is also 64 bits.
+type X__quad_t = int64    /* types.h:66:37 */
+type X__u_quad_t = uint64 /* types.h:67:46 */
+
+// Largest integral types.
+type X__intmax_t = int64   /* types.h:75:37 */
+type X__uintmax_t = uint64 /* types.h:76:46 */
+
+// The machine-dependent file <bits/typesizes.h> defines __*_T_TYPE
+//    macros for each of the OS types we define below.  The definitions
+//    of those macros must use the following macros for underlying types.
+//    We define __S<SIZE>_TYPE and __U<SIZE>_TYPE for the signed and unsigned
+//    variants of each of the following integer types on this machine.
+//
+// 	16		-- "natural" 16-bit type (always short)
+// 	32		-- "natural" 32-bit type (always int)
+// 	64		-- "natural" 64-bit type (long or long long)
+// 	LONG32		-- 32-bit type, traditionally long
+// 	QUAD		-- 64-bit type, traditionally long long
+// 	WORD		-- natural type of __WORDSIZE bits (int or long)
+// 	LONGWORD	-- type of __WORDSIZE bits, traditionally long
+//
+//    We distinguish WORD/LONGWORD, 32/LONG32, and 64/QUAD so that the
+//    conventional uses of `long' or `long long' type modifiers match the
+//    types we define, even when a less-adorned type would be the same size.
+//    This matters for (somewhat) portably writing printf/scanf formats for
+//    these types, where using the appropriate l or ll format modifiers can
+//    make the typedefs and the formats match up across all GNU platforms.  If
+//    we used `long' when it's 64 bits where `long long' is expected, then the
+//    compiler would warn about the formats not matching the argument types,
+//    and the programmer changing them to shut up the compiler would break the
+//    program's portability.
+//
+//    Here we assume what is presently the case in all the GCC configurations
+//    we support: long long is always 64 bits, long is always word/address size,
+//    and int is always 32 bits.
+
+// We want __extension__ before typedef's that use nonstandard base types
+//    such as `long long' in C89 mode.
+// bits/typesizes.h -- underlying types for *_t.  Generic version.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// See <bits/types.h> for the meaning of these macros.  This file exists so
+//    that <bits/types.h> need not vary across different GNU platforms.
+
+// Number of descriptors that can fit in an `fd_set'.
+
+// bits/time64.h -- underlying types for __time64_t.  Generic version.
+//    Copyright (C) 2018-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Define __TIME64_T_TYPE so that it is always a 64-bit type.
+
+// Define a 64-bit time type alongsize the 32-bit one.
+
+type X__dev_t = X__uint64_t                /* types.h:145:25 */ // Type of device numbers.
+type X__uid_t = uint32                     /* types.h:146:25 */ // Type of user identifications.
+type X__gid_t = uint32                     /* types.h:147:25 */ // Type of group identifications.
+type X__ino_t = uint32                     /* types.h:148:25 */ // Type of file serial numbers.
+type X__ino64_t = X__uint64_t              /* types.h:149:27 */ // Type of file serial numbers (LFS).
+type X__mode_t = uint32                    /* types.h:150:26 */ // Type of file attribute bitmasks.
+type X__nlink_t = uint32                   /* types.h:151:27 */ // Type of file link counts.
+type X__off_t = int32                      /* types.h:152:25 */ // Type of file sizes and offsets.
+type X__off64_t = X__int64_t               /* types.h:153:27 */ // Type of file sizes and offsets (LFS).
+type X__pid_t = int32                      /* types.h:154:25 */ // Type of process identifications.
+type X__fsid_t = struct{ F__val [2]int32 } /* types.h:155:26 */ // Type of file system IDs.
+type X__clock_t = int32                    /* types.h:156:27 */ // Type of CPU usage counts.
+type X__rlim_t = uint32                    /* types.h:157:26 */ // Type for resource measurement.
+type X__rlim64_t = X__uint64_t             /* types.h:158:28 */ // Type for resource measurement (LFS).
+type X__id_t = uint32                      /* types.h:159:24 */ // General type for IDs.
+type X__time_t = int32                     /* types.h:160:26 */ // Seconds since the Epoch.
+type X__useconds_t = uint32                /* types.h:161:30 */ // Count of microseconds.
+type X__suseconds_t = int32                /* types.h:162:31 */ // Signed count of microseconds.
+
+type X__daddr_t = int32 /* types.h:164:27 */ // The type of a disk address.
+type X__key_t = int32   /* types.h:165:25 */ // Type of an IPC key.
+
+// Clock ID used in clock and timer functions.
+type X__clockid_t = int32 /* types.h:168:29 */
+
+// Timer ID returned by `timer_create'.
+type X__timer_t = uintptr /* types.h:171:12 */
+
+// Type to represent block size.
+type X__blksize_t = int32 /* types.h:174:29 */
+
+// Types from the Large File Support interface.
+
+// Type to count number of disk blocks.
+type X__blkcnt_t = int32        /* types.h:179:28 */
+type X__blkcnt64_t = X__int64_t /* types.h:180:30 */
+
+// Type to count file system blocks.
+type X__fsblkcnt_t = uint32        /* types.h:183:30 */
+type X__fsblkcnt64_t = X__uint64_t /* types.h:184:32 */
+
+// Type to count file system nodes.
+type X__fsfilcnt_t = uint32        /* types.h:187:30 */
+type X__fsfilcnt64_t = X__uint64_t /* types.h:188:32 */
+
+// Type of miscellaneous file system fields.
+type X__fsword_t = int32 /* types.h:191:28 */
+
+type X__ssize_t = int32 /* types.h:193:27 */ // Type of a byte count, or error.
+
+// Signed long type used in system calls.
+type X__syscall_slong_t = int32 /* types.h:196:33 */
+// Unsigned long type used in system calls.
+type X__syscall_ulong_t = uint32 /* types.h:198:33 */
+
+// These few don't really vary by system, they always correspond
+//
+//	to one of the other defined types.
+type X__loff_t = X__off64_t /* types.h:202:19 */ // Type of file sizes and offsets (LFS).
+type X__caddr_t = uintptr   /* types.h:203:14 */
+
+// Duplicates info from stdint.h but this is used in unistd.h.
+type X__intptr_t = int32 /* types.h:206:25 */
+
+// Duplicate info from sys/socket.h.
+type X__socklen_t = uint32 /* types.h:209:23 */
+
+// C99: An integer type that can be accessed as an atomic entity,
+//
+//	even in the presence of asynchronous interrupts.
+//	It is not currently necessary for this to be machine-specific.
+type X__sig_atomic_t = int32 /* types.h:214:13 */
+
+// Seconds since the Epoch, visible to user code when time_t is too
+//
+//	narrow only for consistency with the old way of widening too-narrow
+//	types.  User code should never use __time64_t.
+type X__time64_t = X__int64_t /* types.h:222:28 */
+
+type Pid_t = X__pid_t /* termios.h:30:17 */
+
+// Get the system-dependent definitions of `struct termios', `tcflag_t',
+//    `cc_t', `speed_t', and all the macros specifying the flag bits.
+// termios type and macro definitions.  Linux version.
+//    Copyright (C) 1993-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+type Cc_t = uint8      /* termios.h:23:23 */
+type Speed_t = uint32  /* termios.h:24:22 */
+type Tcflag_t = uint32 /* termios.h:25:22 */
+
+// struct termios definition.  Linux/generic version.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+type Termios = struct {
+	Fc_iflag     Tcflag_t
+	Fc_oflag     Tcflag_t
+	Fc_cflag     Tcflag_t
+	Fc_lflag     Tcflag_t
+	Fc_line      Cc_t
+	Fc_cc        [32]Cc_t
+	F__ccgo_pad1 [3]byte
+	Fc_ispeed    Speed_t
+	Fc_ospeed    Speed_t
+} /* termios-struct.h:24:1 */
+
+// -
+// Copyright (c) 1982, 1986, 1993
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttydefaults.h	8.4 (Berkeley) 1/21/94
+
+// System wide defaults for terminal state.  Linux version.
+
+// Defaults on "first" open.
+
+// Control Character Defaults
+// compat
+
+// PROTECTED INCLUSION ENDS HERE
+
+// #define TTYDEFCHARS to include an array of default control characters.
+
+var _ uint8 /* gen.c:2:13: */
diff --git a/vendor/modernc.org/libc/termios/termios_linux_arm64.go b/vendor/modernc.org/libc/termios/termios_linux_arm64.go
new file mode 100644
index 0000000..72a9cc2
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/termios_linux_arm64.go
@@ -0,0 +1,1092 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o termios/termios_linux_arm64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+import (
+	"math"
+	"reflect"
+	"sync/atomic"
+	"unsafe"
+)
+
+var _ = math.Pi
+var _ reflect.Kind
+var _ atomic.Value
+var _ unsafe.Pointer
+
+const (
+	B0                             = 0000000
+	B1000000                       = 0010010
+	B110                           = 0000003
+	B115200                        = 0010002
+	B1152000                       = 0010011
+	B1200                          = 0000011
+	B134                           = 0000004
+	B150                           = 0000005
+	B1500000                       = 0010012
+	B1800                          = 0000012
+	B19200                         = 0000016
+	B200                           = 0000006
+	B2000000                       = 0010013
+	B230400                        = 0010003
+	B2400                          = 0000013
+	B2500000                       = 0010014
+	B300                           = 0000007
+	B3000000                       = 0010015
+	B3500000                       = 0010016
+	B38400                         = 0000017
+	B4000000                       = 0010017
+	B460800                        = 0010004
+	B4800                          = 0000014
+	B50                            = 0000001
+	B500000                        = 0010005
+	B57600                         = 0010001
+	B576000                        = 0010006
+	B600                           = 0000010
+	B75                            = 0000002
+	B921600                        = 0010007
+	B9600                          = 0000015
+	BRKINT                         = 0000002
+	BS0                            = 0000000
+	BS1                            = 0020000
+	BSDLY                          = 0020000
+	CBAUD                          = 000000010017
+	CBAUDEX                        = 000000010000
+	CBRK                           = 0
+	CDISCARD                       = 15
+	CDSUSP                         = 25
+	CEOF                           = 4
+	CEOL                           = 0
+	CEOT                           = 4
+	CERASE                         = 0177
+	CFLUSH                         = 15
+	CIBAUD                         = 002003600000
+	CINTR                          = 3
+	CKILL                          = 21
+	CLNEXT                         = 22
+	CLOCAL                         = 0004000
+	CMIN                           = 1
+	CMSPAR                         = 010000000000
+	CQUIT                          = 034
+	CR0                            = 0000000
+	CR1                            = 0001000
+	CR2                            = 0002000
+	CR3                            = 0003000
+	CRDLY                          = 0003000
+	CREAD                          = 0000200
+	CREPRINT                       = 18
+	CRPRNT                         = 18
+	CRTSCTS                        = 020000000000
+	CS5                            = 0000000
+	CS6                            = 0000020
+	CS7                            = 0000040
+	CS8                            = 0000060
+	CSIZE                          = 0000060
+	CSTART                         = 17
+	CSTATUS                        = 0
+	CSTOP                          = 19
+	CSTOPB                         = 0000100
+	CSUSP                          = 26
+	CTIME                          = 0
+	CWERASE                        = 23
+	ECHO                           = 0000010
+	ECHOCTL                        = 0001000
+	ECHOE                          = 0000020
+	ECHOK                          = 0000040
+	ECHOKE                         = 0004000
+	ECHONL                         = 0000100
+	ECHOPRT                        = 0002000
+	EXTA                           = 14
+	EXTB                           = 15
+	EXTPROC                        = 0200000
+	FF0                            = 0000000
+	FF1                            = 0100000
+	FFDLY                          = 0100000
+	FLUSHO                         = 0010000
+	HUPCL                          = 0002000
+	ICANON                         = 0000002
+	ICRNL                          = 0000400
+	IEXTEN                         = 0100000
+	IGNBRK                         = 0000001
+	IGNCR                          = 0000200
+	IGNPAR                         = 0000004
+	IMAXBEL                        = 0020000
+	INLCR                          = 0000100
+	INPCK                          = 0000020
+	ISIG                           = 0000001
+	ISTRIP                         = 0000040
+	IUCLC                          = 0001000
+	IUTF8                          = 0040000
+	IXANY                          = 0004000
+	IXOFF                          = 0010000
+	IXON                           = 0002000
+	NCCS                           = 32
+	NL0                            = 0000000
+	NL1                            = 0000400
+	NLDLY                          = 0000400
+	NOFLSH                         = 0000200
+	OCRNL                          = 0000010
+	OFDEL                          = 0000200
+	OFILL                          = 0000100
+	OLCUC                          = 0000002
+	ONLCR                          = 0000004
+	ONLRET                         = 0000040
+	ONOCR                          = 0000020
+	OPOST                          = 0000001
+	PARENB                         = 0000400
+	PARMRK                         = 0000010
+	PARODD                         = 0001000
+	PENDIN                         = 0040000
+	TAB0                           = 0000000
+	TAB1                           = 0004000
+	TAB2                           = 0010000
+	TAB3                           = 0014000
+	TABDLY                         = 0014000
+	TCIFLUSH                       = 0
+	TCIOFF                         = 2
+	TCIOFLUSH                      = 2
+	TCION                          = 3
+	TCOFLUSH                       = 1
+	TCOOFF                         = 0
+	TCOON                          = 1
+	TCSADRAIN                      = 1
+	TCSAFLUSH                      = 2
+	TCSANOW                        = 0
+	TIOCSER_TEMT                   = 0x01
+	TOSTOP                         = 0000400
+	TTYDEF_CFLAG                   = 1440
+	TTYDEF_IFLAG                   = 11554
+	TTYDEF_LFLAG                   = 35355
+	TTYDEF_OFLAG                   = 6149
+	TTYDEF_SPEED                   = 13
+	VDISCARD                       = 13
+	VEOF                           = 4
+	VEOL                           = 11
+	VEOL2                          = 16
+	VERASE                         = 2
+	VINTR                          = 0
+	VKILL                          = 3
+	VLNEXT                         = 15
+	VMIN                           = 6
+	VQUIT                          = 1
+	VREPRINT                       = 12
+	VSTART                         = 8
+	VSTOP                          = 9
+	VSUSP                          = 10
+	VSWTC                          = 7
+	VT0                            = 0000000
+	VT1                            = 0040000
+	VTDLY                          = 0040000
+	VTIME                          = 5
+	VWERASE                        = 14
+	XCASE                          = 0000004
+	XTABS                          = 0014000
+	X_ATFILE_SOURCE                = 1
+	X_BITS_TIME64_H                = 1
+	X_BITS_TYPESIZES_H             = 1
+	X_BITS_TYPES_H                 = 1
+	X_DEFAULT_SOURCE               = 1
+	X_FEATURES_H                   = 1
+	X_FILE_OFFSET_BITS             = 64
+	X_HAVE_STRUCT_TERMIOS_C_ISPEED = 1
+	X_HAVE_STRUCT_TERMIOS_C_OSPEED = 1
+	X_LP64                         = 1
+	X_POSIX_C_SOURCE               = 200809
+	X_POSIX_SOURCE                 = 1
+	X_STDC_PREDEF_H                = 1
+	X_SYS_CDEFS_H                  = 1
+	X_SYS_TTYDEFAULTS_H_           = 0
+	X_TERMIOS_H                    = 1
+	Linux                          = 1
+	Unix                           = 1
+)
+
+type Ptrdiff_t = int64 /* <builtin>:3:26 */
+
+type Size_t = uint64 /* <builtin>:9:23 */
+
+type Wchar_t = uint32 /* <builtin>:15:24 */
+
+type X__int128_t = struct {
+	Flo int64
+	Fhi int64
+} /* <builtin>:21:43 */ // must match modernc.org/mathutil.Int128
+type X__uint128_t = struct {
+	Flo uint64
+	Fhi uint64
+} /* <builtin>:22:44 */ // must match modernc.org/mathutil.Int128
+
+type X__builtin_va_list = uintptr /* <builtin>:46:14 */
+type X__float128 = float64        /* <builtin>:47:21 */
+
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+//	POSIX Standard: 7.1-2 General Terminal Interface	<termios.h>
+
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// These are defined by the user (or the compiler)
+//    to specify the desired environment:
+//
+//    __STRICT_ANSI__	ISO Standard C.
+//    _ISOC99_SOURCE	Extensions to ISO C89 from ISO C99.
+//    _ISOC11_SOURCE	Extensions to ISO C99 from ISO C11.
+//    _ISOC2X_SOURCE	Extensions to ISO C99 from ISO C2X.
+//    __STDC_WANT_LIB_EXT2__
+// 			Extensions to ISO C99 from TR 27431-2:2010.
+//    __STDC_WANT_IEC_60559_BFP_EXT__
+// 			Extensions to ISO C11 from TS 18661-1:2014.
+//    __STDC_WANT_IEC_60559_FUNCS_EXT__
+// 			Extensions to ISO C11 from TS 18661-4:2015.
+//    __STDC_WANT_IEC_60559_TYPES_EXT__
+// 			Extensions to ISO C11 from TS 18661-3:2015.
+//
+//    _POSIX_SOURCE	IEEE Std 1003.1.
+//    _POSIX_C_SOURCE	If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2;
+// 			if >=199309L, add IEEE Std 1003.1b-1993;
+// 			if >=199506L, add IEEE Std 1003.1c-1995;
+// 			if >=200112L, all of IEEE 1003.1-2004
+// 			if >=200809L, all of IEEE 1003.1-2008
+//    _XOPEN_SOURCE	Includes POSIX and XPG things.  Set to 500 if
+// 			Single Unix conformance is wanted, to 600 for the
+// 			sixth revision, to 700 for the seventh revision.
+//    _XOPEN_SOURCE_EXTENDED XPG things and X/Open Unix extensions.
+//    _LARGEFILE_SOURCE	Some more functions for correct standard I/O.
+//    _LARGEFILE64_SOURCE	Additional functionality from LFS for large files.
+//    _FILE_OFFSET_BITS=N	Select default filesystem interface.
+//    _ATFILE_SOURCE	Additional *at interfaces.
+//    _GNU_SOURCE		All of the above, plus GNU extensions.
+//    _DEFAULT_SOURCE	The default set of features (taking precedence over
+// 			__STRICT_ANSI__).
+//
+//    _FORTIFY_SOURCE	Add security hardening to many library functions.
+// 			Set to 1 or 2; 2 performs stricter checks than 1.
+//
+//    _REENTRANT, _THREAD_SAFE
+// 			Obsolete; equivalent to _POSIX_C_SOURCE=199506L.
+//
+//    The `-ansi' switch to the GNU C compiler, and standards conformance
+//    options such as `-std=c99', define __STRICT_ANSI__.  If none of
+//    these are defined, or if _DEFAULT_SOURCE is defined, the default is
+//    to have _POSIX_SOURCE set to one and _POSIX_C_SOURCE set to
+//    200809L, as well as enabling miscellaneous functions from BSD and
+//    SVID.  If more than one of these are defined, they accumulate.  For
+//    example __STRICT_ANSI__, _POSIX_SOURCE and _POSIX_C_SOURCE together
+//    give you ISO C, 1003.1, and 1003.2, but nothing else.
+//
+//    These are defined by this file and are used by the
+//    header files to decide what to declare or define:
+//
+//    __GLIBC_USE (F)	Define things from feature set F.  This is defined
+// 			to 1 or 0; the subsequent macros are either defined
+// 			or undefined, and those tests should be moved to
+// 			__GLIBC_USE.
+//    __USE_ISOC11		Define ISO C11 things.
+//    __USE_ISOC99		Define ISO C99 things.
+//    __USE_ISOC95		Define ISO C90 AMD1 (C95) things.
+//    __USE_ISOCXX11	Define ISO C++11 things.
+//    __USE_POSIX		Define IEEE Std 1003.1 things.
+//    __USE_POSIX2		Define IEEE Std 1003.2 things.
+//    __USE_POSIX199309	Define IEEE Std 1003.1, and .1b things.
+//    __USE_POSIX199506	Define IEEE Std 1003.1, .1b, .1c and .1i things.
+//    __USE_XOPEN		Define XPG things.
+//    __USE_XOPEN_EXTENDED	Define X/Open Unix things.
+//    __USE_UNIX98		Define Single Unix V2 things.
+//    __USE_XOPEN2K        Define XPG6 things.
+//    __USE_XOPEN2KXSI     Define XPG6 XSI things.
+//    __USE_XOPEN2K8       Define XPG7 things.
+//    __USE_XOPEN2K8XSI    Define XPG7 XSI things.
+//    __USE_LARGEFILE	Define correct standard I/O things.
+//    __USE_LARGEFILE64	Define LFS things with separate names.
+//    __USE_FILE_OFFSET64	Define 64bit interface as default.
+//    __USE_MISC		Define things from 4.3BSD or System V Unix.
+//    __USE_ATFILE		Define *at interfaces and AT_* constants for them.
+//    __USE_GNU		Define GNU extensions.
+//    __USE_FORTIFY_LEVEL	Additional security measures used, according to level.
+//
+//    The macros `__GNU_LIBRARY__', `__GLIBC__', and `__GLIBC_MINOR__' are
+//    defined by this file unconditionally.  `__GNU_LIBRARY__' is provided
+//    only for compatibility.  All new code should use the other symbols
+//    to test for features.
+//
+//    All macros listed above as possibly being defined by this file are
+//    explicitly undefined if they are not explicitly defined.
+//    Feature-test macros that are not defined by the user or compiler
+//    but are implied by the other feature-test macros defined (or by the
+//    lack of any definitions) are defined by the file.
+//
+//    ISO C feature test macros depend on the definition of the macro
+//    when an affected header is included, not when the first system
+//    header is included, and so they are handled in
+//    <bits/libc-header-start.h>, which does not have a multiple include
+//    guard.  Feature test macros that can be handled from the first
+//    system header included are handled here.
+
+// Undefine everything, so we get a clean slate.
+
+// Suppress kernel-name space pollution unless user expressedly asks
+//    for it.
+
+// Convenience macro to test the version of gcc.
+//    Use like this:
+//    #if __GNUC_PREREQ (2,8)
+//    ... code requiring gcc 2.8 or later ...
+//    #endif
+//    Note: only works for GCC 2.0 and later, because __GNUC_MINOR__ was
+//    added in 2.0.
+
+// Similarly for clang.  Features added to GCC after version 4.2 may
+//    or may not also be available in clang, and clang's definitions of
+//    __GNUC(_MINOR)__ are fixed at 4 and 2 respectively.  Not all such
+//    features can be queried via __has_extension/__has_feature.
+
+// Whether to use feature set F.
+
+// _BSD_SOURCE and _SVID_SOURCE are deprecated aliases for
+//    _DEFAULT_SOURCE.  If _DEFAULT_SOURCE is present we do not
+//    issue a warning; the expectation is that the source is being
+//    transitioned to use the new macro.
+
+// If _GNU_SOURCE was defined by the user, turn on all the other features.
+
+// If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined,
+//    define _DEFAULT_SOURCE.
+
+// This is to enable the ISO C2X extension.
+
+// This is to enable the ISO C11 extension.
+
+// This is to enable the ISO C99 extension.
+
+// This is to enable the ISO C90 Amendment 1:1995 extension.
+
+// If none of the ANSI/POSIX macros are defined, or if _DEFAULT_SOURCE
+//    is defined, use POSIX.1-2008 (or another version depending on
+//    _XOPEN_SOURCE).
+
+// Some C libraries once required _REENTRANT and/or _THREAD_SAFE to be
+//    defined in all multithreaded code.  GNU libc has not required this
+//    for many years.  We now treat them as compatibility synonyms for
+//    _POSIX_C_SOURCE=199506L, which is the earliest level of POSIX with
+//    comprehensive support for multithreaded code.  Using them never
+//    lowers the selected level of POSIX conformance, only raises it.
+
+// The function 'gets' existed in C89, but is impossible to use
+//    safely.  It has been removed from ISO C11 and ISO C++14.  Note: for
+//    compatibility with various implementations of <cstdio>, this test
+//    must consider only the value of __cplusplus when compiling C++.
+
+// GNU formerly extended the scanf functions with modified format
+//    specifiers %as, %aS, and %a[...] that allocate a buffer for the
+//    input using malloc.  This extension conflicts with ISO C99, which
+//    defines %a as a standalone format specifier that reads a floating-
+//    point number; moreover, POSIX.1-2008 provides the same feature
+//    using the modifier letter 'm' instead (%ms, %mS, %m[...]).
+//
+//    We now follow C99 unless GNU extensions are active and the compiler
+//    is specifically in C89 or C++98 mode (strict or not).  For
+//    instance, with GCC, -std=gnu11 will have C99-compliant scanf with
+//    or without -D_GNU_SOURCE, but -std=c89 -D_GNU_SOURCE will have the
+//    old extension.
+
+// Get definitions of __STDC_* predefined macros, if the compiler has
+//    not preincluded this header automatically.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// This macro indicates that the installed library is the GNU C Library.
+//    For historic reasons the value now is 6 and this will stay from now
+//    on.  The use of this variable is deprecated.  Use __GLIBC__ and
+//    __GLIBC_MINOR__ now (see below) when you want to test for a specific
+//    GNU C library version and use the values in <gnu/lib-names.h> to get
+//    the sonames of the shared libraries.
+
+// Major and minor version number of the GNU C library package.  Use
+//    these macros to test for features in specific releases.
+
+// This is here only because every header file already includes this one.
+// Copyright (C) 1992-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// We are almost always included from features.h.
+
+// The GNU libc does not support any K&R compilers or the traditional mode
+//    of ISO C compilers anymore.  Check for some of the combinations not
+//    anymore supported.
+
+// Some user header file might have defined this before.
+
+// All functions, except those with callbacks or those that
+//    synchronize memory, are leaf functions.
+
+// GCC can always grok prototypes.  For C++ programs we add throw()
+//    to help it optimize the function calls.  But this works only with
+//    gcc 2.8.x and egcs.  For gcc 3.2 and up we even mark C functions
+//    as non-throwing using a function attribute since programs can use
+//    the -fexceptions options for C code as well.
+
+// Compilers that are not clang may object to
+//        #if defined __clang__ && __has_extension(...)
+//    even though they do not need to evaluate the right-hand side of the &&.
+
+// These two macros are not used in glibc anymore.  They are kept here
+//    only because some other projects expect the macros to be defined.
+
+// For these things, GCC behaves the ANSI way normally,
+//    and the non-ANSI way under -traditional.
+
+// This is not a typedef so `const __ptr_t' does the right thing.
+
+// C++ needs to know that types and declarations are C, not C++.
+
+// Fortify support.
+
+// Support for flexible arrays.
+//    Headers that should use flexible arrays only if they're "real"
+//    (e.g. only if they won't affect sizeof()) should test
+//    #if __glibc_c99_flexarr_available.
+
+// __asm__ ("xyz") is used throughout the headers to rename functions
+//    at the assembly language level.  This is wrapped by the __REDIRECT
+//    macro, in order to support compilers that can do this some other
+//    way.  When compilers don't support asm-names at all, we have to do
+//    preprocessor tricks instead (which don't have exactly the right
+//    semantics, but it's the best we can do).
+//
+//    Example:
+//    int __REDIRECT(setpgrp, (__pid_t pid, __pid_t pgrp), setpgid);
+
+//
+// #elif __SOME_OTHER_COMPILER__
+//
+// # define __REDIRECT(name, proto, alias) name proto; 	_Pragma("let " #name " = " #alias)
+
+// GCC has various useful declarations that can be made with the
+//    `__attribute__' syntax.  All of the ways we use this do fine if
+//    they are omitted for compilers that don't understand it.
+
+// At some point during the gcc 2.96 development the `malloc' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// Tell the compiler which arguments to an allocation function
+//    indicate the size of the allocation.
+
+// At some point during the gcc 2.96 development the `pure' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// This declaration tells the compiler that the value is constant.
+
+// At some point during the gcc 3.1 development the `used' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// Since version 3.2, gcc allows marking deprecated functions.
+
+// Since version 4.5, gcc also allows one to specify the message printed
+//    when a deprecated function is used.  clang claims to be gcc 4.2, but
+//    may also support this feature.
+
+// At some point during the gcc 2.8 development the `format_arg' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+//    If several `format_arg' attributes are given for the same function, in
+//    gcc-3.0 and older, all but the last one are ignored.  In newer gccs,
+//    all designated arguments are considered.
+
+// At some point during the gcc 2.97 development the `strfmon' format
+//    attribute for functions was introduced.  We don't want to use it
+//    unconditionally (although this would be possible) since it
+//    generates warnings.
+
+// The nonull function attribute allows to mark pointer parameters which
+//    must not be NULL.
+
+// If fortification mode, we warn about unused results of certain
+//    function calls which can lead to problems.
+
+// Forces a function to be always inlined.
+// The Linux kernel defines __always_inline in stddef.h (283d7573), and
+//    it conflicts with this definition.  Therefore undefine it first to
+//    allow either header to be included first.
+
+// Associate error messages with the source location of the call site rather
+//    than with the source location inside the function.
+
+// GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99
+//    inline semantics, unless -fgnu89-inline is used.  Using __GNUC_STDC_INLINE__
+//    or __GNUC_GNU_INLINE is not a good enough check for gcc because gcc versions
+//    older than 4.3 may define these macros and still not guarantee GNU inlining
+//    semantics.
+//
+//    clang++ identifies itself as gcc-4.2, but has support for GNU inlining
+//    semantics, that can be checked for by using the __GNUC_STDC_INLINE_ and
+//    __GNUC_GNU_INLINE__ macro definitions.
+
+// GCC 4.3 and above allow passing all anonymous arguments of an
+//    __extern_always_inline function to some other vararg function.
+
+// It is possible to compile containing GCC extensions even if GCC is
+//    run in pedantic mode if the uses are carefully marked using the
+//    `__extension__' keyword.  But this is not generally available before
+//    version 2.8.
+
+// __restrict is known in EGCS 1.2 and above.
+
+// ISO C99 also allows to declare arrays as non-overlapping.  The syntax is
+//      array_name[restrict]
+//    GCC 3.1 supports this.
+
+// Describes a char array whose address can safely be passed as the first
+//    argument to strncpy and strncat, as the char array is not necessarily
+//    a NUL-terminated string.
+
+// Undefine (also defined in libc-symbols.h).
+// Copies attributes from the declaration or type referenced by
+//    the argument.
+
+// Determine the wordsize from the preprocessor defines.
+//
+//    Copyright (C) 2016-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Properties of long double type.  ldbl-128 version.
+//    Copyright (C) 2016-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License  published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// long double is distinct from double, so there is nothing to
+//    define here.
+
+// __glibc_macro_warning (MESSAGE) issues warning MESSAGE.  This is
+//    intended for use in preprocessor macros.
+//
+//    Note: MESSAGE must be a _single_ string; concatenation of string
+//    literals is not supported.
+
+// Generic selection (ISO C11) is a C-only feature, available in GCC
+//    since version 4.9.  Previous versions do not provide generic
+//    selection, even though they might set __STDC_VERSION__ to 201112L,
+//    when in -std=c11 mode.  Thus, we must check for !defined __GNUC__
+//    when testing __STDC_VERSION__ for generic selection support.
+//    On the other hand, Clang also defines __GNUC__, so a clang-specific
+//    check is required to enable the use of generic selection.
+
+// If we don't have __REDIRECT, prototypes will be missing if
+//    __USE_FILE_OFFSET64 but not __USE_LARGEFILE[64].
+
+// Decide whether we can define 'extern inline' functions in headers.
+
+// This is here only because every header file already includes this one.
+//    Get the definitions of all the appropriate `__stub_FUNCTION' symbols.
+//    <gnu/stubs.h> contains `#define __stub_FUNCTION' when FUNCTION is a stub
+//    that will always return failure (and set errno to ENOSYS).
+// This file is automatically generated.
+//    This file selects the right generated file of `__stub_FUNCTION' macros
+//    based on the architecture being compiled for.
+
+// Determine the wordsize from the preprocessor defines.
+//
+//    Copyright (C) 2016-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// This file is automatically generated.
+//    It defines a symbol `__stub_FUNCTION' for each function
+//    in the C library which is a stub, meaning it will fail
+//    every time called, usually setting errno to ENOSYS.
+
+// We need `pid_t'.
+// bits/types.h -- definitions of __*_t types underlying *_t types.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Never include this file directly; use <sys/types.h> instead.
+
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Determine the wordsize from the preprocessor defines.
+//
+//    Copyright (C) 2016-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Bit size of the time_t type at glibc build time, general case.
+//    Copyright (C) 2018-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Determine the wordsize from the preprocessor defines.
+//
+//    Copyright (C) 2016-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Size in bits of the 'time_t' type of the default ABI.
+
+// Convenience types.
+type X__u_char = uint8   /* types.h:31:23 */
+type X__u_short = uint16 /* types.h:32:28 */
+type X__u_int = uint32   /* types.h:33:22 */
+type X__u_long = uint64  /* types.h:34:27 */
+
+// Fixed-size types, underlying types depend on word size and compiler.
+type X__int8_t = int8     /* types.h:37:21 */
+type X__uint8_t = uint8   /* types.h:38:23 */
+type X__int16_t = int16   /* types.h:39:26 */
+type X__uint16_t = uint16 /* types.h:40:28 */
+type X__int32_t = int32   /* types.h:41:20 */
+type X__uint32_t = uint32 /* types.h:42:22 */
+type X__int64_t = int64   /* types.h:44:25 */
+type X__uint64_t = uint64 /* types.h:45:27 */
+
+// Smallest types with at least a given width.
+type X__int_least8_t = X__int8_t     /* types.h:52:18 */
+type X__uint_least8_t = X__uint8_t   /* types.h:53:19 */
+type X__int_least16_t = X__int16_t   /* types.h:54:19 */
+type X__uint_least16_t = X__uint16_t /* types.h:55:20 */
+type X__int_least32_t = X__int32_t   /* types.h:56:19 */
+type X__uint_least32_t = X__uint32_t /* types.h:57:20 */
+type X__int_least64_t = X__int64_t   /* types.h:58:19 */
+type X__uint_least64_t = X__uint64_t /* types.h:59:20 */
+
+// quad_t is also 64 bits.
+type X__quad_t = int64    /* types.h:63:18 */
+type X__u_quad_t = uint64 /* types.h:64:27 */
+
+// Largest integral types.
+type X__intmax_t = int64   /* types.h:72:18 */
+type X__uintmax_t = uint64 /* types.h:73:27 */
+
+// The machine-dependent file <bits/typesizes.h> defines __*_T_TYPE
+//    macros for each of the OS types we define below.  The definitions
+//    of those macros must use the following macros for underlying types.
+//    We define __S<SIZE>_TYPE and __U<SIZE>_TYPE for the signed and unsigned
+//    variants of each of the following integer types on this machine.
+//
+// 	16		-- "natural" 16-bit type (always short)
+// 	32		-- "natural" 32-bit type (always int)
+// 	64		-- "natural" 64-bit type (long or long long)
+// 	LONG32		-- 32-bit type, traditionally long
+// 	QUAD		-- 64-bit type, traditionally long long
+// 	WORD		-- natural type of __WORDSIZE bits (int or long)
+// 	LONGWORD	-- type of __WORDSIZE bits, traditionally long
+//
+//    We distinguish WORD/LONGWORD, 32/LONG32, and 64/QUAD so that the
+//    conventional uses of `long' or `long long' type modifiers match the
+//    types we define, even when a less-adorned type would be the same size.
+//    This matters for (somewhat) portably writing printf/scanf formats for
+//    these types, where using the appropriate l or ll format modifiers can
+//    make the typedefs and the formats match up across all GNU platforms.  If
+//    we used `long' when it's 64 bits where `long long' is expected, then the
+//    compiler would warn about the formats not matching the argument types,
+//    and the programmer changing them to shut up the compiler would break the
+//    program's portability.
+//
+//    Here we assume what is presently the case in all the GCC configurations
+//    we support: long long is always 64 bits, long is always word/address size,
+//    and int is always 32 bits.
+
+// No need to mark the typedef with __extension__.
+// bits/typesizes.h -- underlying types for *_t.  For the generic Linux ABI.
+//    Copyright (C) 2011-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//    Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+// See <bits/types.h> for the meaning of these macros.  This file exists so
+//    that <bits/types.h> need not vary across different GNU platforms.
+
+// Tell the libc code that off_t and off64_t are actually the same type
+//    for all ABI purposes, even if possibly expressed as different base types
+//    for C type-checking purposes.
+
+// Same for ino_t and ino64_t.
+
+// And for __rlim_t and __rlim64_t.
+
+// And for fsblkcnt_t, fsblkcnt64_t, fsfilcnt_t and fsfilcnt64_t.
+// Number of descriptors that can fit in an `fd_set'.
+
+// bits/time64.h -- underlying types for __time64_t.  Generic version.
+//    Copyright (C) 2018-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Define __TIME64_T_TYPE so that it is always a 64-bit type.
+
+// If we already have 64-bit time type then use it.
+
+type X__dev_t = uint64                     /* types.h:145:25 */ // Type of device numbers.
+type X__uid_t = uint32                     /* types.h:146:25 */ // Type of user identifications.
+type X__gid_t = uint32                     /* types.h:147:25 */ // Type of group identifications.
+type X__ino_t = uint64                     /* types.h:148:25 */ // Type of file serial numbers.
+type X__ino64_t = uint64                   /* types.h:149:27 */ // Type of file serial numbers (LFS).
+type X__mode_t = uint32                    /* types.h:150:26 */ // Type of file attribute bitmasks.
+type X__nlink_t = uint32                   /* types.h:151:27 */ // Type of file link counts.
+type X__off_t = int64                      /* types.h:152:25 */ // Type of file sizes and offsets.
+type X__off64_t = int64                    /* types.h:153:27 */ // Type of file sizes and offsets (LFS).
+type X__pid_t = int32                      /* types.h:154:25 */ // Type of process identifications.
+type X__fsid_t = struct{ F__val [2]int32 } /* types.h:155:26 */ // Type of file system IDs.
+type X__clock_t = int64                    /* types.h:156:27 */ // Type of CPU usage counts.
+type X__rlim_t = uint64                    /* types.h:157:26 */ // Type for resource measurement.
+type X__rlim64_t = uint64                  /* types.h:158:28 */ // Type for resource measurement (LFS).
+type X__id_t = uint32                      /* types.h:159:24 */ // General type for IDs.
+type X__time_t = int64                     /* types.h:160:26 */ // Seconds since the Epoch.
+type X__useconds_t = uint32                /* types.h:161:30 */ // Count of microseconds.
+type X__suseconds_t = int64                /* types.h:162:31 */ // Signed count of microseconds.
+
+type X__daddr_t = int32 /* types.h:164:27 */ // The type of a disk address.
+type X__key_t = int32   /* types.h:165:25 */ // Type of an IPC key.
+
+// Clock ID used in clock and timer functions.
+type X__clockid_t = int32 /* types.h:168:29 */
+
+// Timer ID returned by `timer_create'.
+type X__timer_t = uintptr /* types.h:171:12 */
+
+// Type to represent block size.
+type X__blksize_t = int32 /* types.h:174:29 */
+
+// Types from the Large File Support interface.
+
+// Type to count number of disk blocks.
+type X__blkcnt_t = int64   /* types.h:179:28 */
+type X__blkcnt64_t = int64 /* types.h:180:30 */
+
+// Type to count file system blocks.
+type X__fsblkcnt_t = uint64   /* types.h:183:30 */
+type X__fsblkcnt64_t = uint64 /* types.h:184:32 */
+
+// Type to count file system nodes.
+type X__fsfilcnt_t = uint64   /* types.h:187:30 */
+type X__fsfilcnt64_t = uint64 /* types.h:188:32 */
+
+// Type of miscellaneous file system fields.
+type X__fsword_t = int64 /* types.h:191:28 */
+
+type X__ssize_t = int64 /* types.h:193:27 */ // Type of a byte count, or error.
+
+// Signed long type used in system calls.
+type X__syscall_slong_t = int64 /* types.h:196:33 */
+// Unsigned long type used in system calls.
+type X__syscall_ulong_t = uint64 /* types.h:198:33 */
+
+// These few don't really vary by system, they always correspond
+//
+//	to one of the other defined types.
+type X__loff_t = X__off64_t /* types.h:202:19 */ // Type of file sizes and offsets (LFS).
+type X__caddr_t = uintptr   /* types.h:203:14 */
+
+// Duplicates info from stdint.h but this is used in unistd.h.
+type X__intptr_t = int64 /* types.h:206:25 */
+
+// Duplicate info from sys/socket.h.
+type X__socklen_t = uint32 /* types.h:209:23 */
+
+// C99: An integer type that can be accessed as an atomic entity,
+//
+//	even in the presence of asynchronous interrupts.
+//	It is not currently necessary for this to be machine-specific.
+type X__sig_atomic_t = int32 /* types.h:214:13 */
+
+// Seconds since the Epoch, visible to user code when time_t is too
+//    narrow only for consistency with the old way of widening too-narrow
+//    types.  User code should never use __time64_t.
+
+type Pid_t = X__pid_t /* termios.h:30:17 */
+
+// Get the system-dependent definitions of `struct termios', `tcflag_t',
+//    `cc_t', `speed_t', and all the macros specifying the flag bits.
+// termios type and macro definitions.  Linux version.
+//    Copyright (C) 1993-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+type Cc_t = uint8      /* termios.h:23:23 */
+type Speed_t = uint32  /* termios.h:24:22 */
+type Tcflag_t = uint32 /* termios.h:25:22 */
+
+// struct termios definition.  Linux/generic version.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+type Termios = struct {
+	Fc_iflag     Tcflag_t
+	Fc_oflag     Tcflag_t
+	Fc_cflag     Tcflag_t
+	Fc_lflag     Tcflag_t
+	Fc_line      Cc_t
+	Fc_cc        [32]Cc_t
+	F__ccgo_pad1 [3]byte
+	Fc_ispeed    Speed_t
+	Fc_ospeed    Speed_t
+} /* termios-struct.h:24:1 */
+
+// -
+// Copyright (c) 1982, 1986, 1993
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttydefaults.h	8.4 (Berkeley) 1/21/94
+
+// System wide defaults for terminal state.  Linux version.
+
+// Defaults on "first" open.
+
+// Control Character Defaults
+// compat
+
+// PROTECTED INCLUSION ENDS HERE
+
+// #define TTYDEFCHARS to include an array of default control characters.
+
+var _ uint8 /* gen.c:2:13: */
diff --git a/vendor/modernc.org/libc/termios/termios_linux_loong64.go b/vendor/modernc.org/libc/termios/termios_linux_loong64.go
new file mode 100644
index 0000000..da9f245
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/termios_linux_loong64.go
@@ -0,0 +1,1184 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_linux_loong64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+import (
+	"math"
+	"reflect"
+	"sync/atomic"
+	"unsafe"
+)
+
+var _ = math.Pi
+var _ reflect.Kind
+var _ atomic.Value
+var _ unsafe.Pointer
+
+const (
+	ADDRB                          = 04000000000   // termios-c_cflag.h:37:1:
+	B0                             = 0000000       // termios.h:33:1:
+	B1000000                       = 0010010       // termios-baud.h:40:1:
+	B110                           = 0000003       // termios.h:36:1:
+	B115200                        = 0010002       // termios-baud.h:34:1:
+	B1152000                       = 0010011       // termios-baud.h:41:1:
+	B1200                          = 0000011       // termios.h:42:1:
+	B134                           = 0000004       // termios.h:37:1:
+	B150                           = 0000005       // termios.h:38:1:
+	B1500000                       = 0010012       // termios-baud.h:42:1:
+	B1800                          = 0000012       // termios.h:43:1:
+	B19200                         = 0000016       // termios.h:47:1:
+	B200                           = 0000006       // termios.h:39:1:
+	B2000000                       = 0010013       // termios-baud.h:43:1:
+	B230400                        = 0010003       // termios-baud.h:35:1:
+	B2400                          = 0000013       // termios.h:44:1:
+	B2500000                       = 0010014       // termios-baud.h:44:1:
+	B300                           = 0000007       // termios.h:40:1:
+	B3000000                       = 0010015       // termios-baud.h:45:1:
+	B3500000                       = 0010016       // termios-baud.h:46:1:
+	B38400                         = 0000017       // termios.h:48:1:
+	B4000000                       = 0010017       // termios-baud.h:47:1:
+	B460800                        = 0010004       // termios-baud.h:36:1:
+	B4800                          = 0000014       // termios.h:45:1:
+	B50                            = 0000001       // termios.h:34:1:
+	B500000                        = 0010005       // termios-baud.h:37:1:
+	B57600                         = 0010001       // termios-baud.h:33:1:
+	B576000                        = 0010006       // termios-baud.h:38:1:
+	B600                           = 0000010       // termios.h:41:1:
+	B75                            = 0000002       // termios.h:35:1:
+	B921600                        = 0010007       // termios-baud.h:39:1:
+	B9600                          = 0000015       // termios.h:46:1:
+	BRKINT                         = 0000002       // termios-c_iflag.h:25:1:
+	BS0                            = 0000000       // termios-c_oflag.h:48:1:
+	BS1                            = 0020000       // termios-c_oflag.h:49:1:
+	BSDLY                          = 0020000       // termios-c_oflag.h:47:1:
+	CBAUD                          = 000000010017  // termios-baud.h:24:1:
+	CBAUDEX                        = 000000010000  // termios-baud.h:25:1:
+	CBRK                           = 0             // ttydefaults.h:83:1:
+	CDISCARD                       = 15            // ttydefaults.h:78:1:
+	CDSUSP                         = 25            // ttydefaults.h:74:1:
+	CEOF                           = 4             // ttydefaults.h:56:1:
+	CEOL                           = 0             // ttydefaults.h:60:1:
+	CEOT                           = 4             // ttydefaults.h:81:1:
+	CERASE                         = 0177          // ttydefaults.h:62:1:
+	CFLUSH                         = 15            // ttydefaults.h:85:1:
+	CIBAUD                         = 002003600000  // termios-baud.h:27:1:
+	CINTR                          = 3             // ttydefaults.h:63:1:
+	CKILL                          = 21            // ttydefaults.h:69:1:
+	CLNEXT                         = 22            // ttydefaults.h:77:1:
+	CLOCAL                         = 0004000       // termios-c_cflag.h:34:1:
+	CMIN                           = 1             // ttydefaults.h:70:1:
+	CMSPAR                         = 010000000000  // termios-baud.h:28:1:
+	CQUIT                          = 034           // ttydefaults.h:71:1:
+	CR0                            = 0000000       // termios-c_oflag.h:38:1:
+	CR1                            = 0001000       // termios-c_oflag.h:39:1:
+	CR2                            = 0002000       // termios-c_oflag.h:40:1:
+	CR3                            = 0003000       // termios-c_oflag.h:41:1:
+	CRDLY                          = 0003000       // termios-c_oflag.h:37:1:
+	CREAD                          = 0000200       // termios-c_cflag.h:30:1:
+	CREPRINT                       = 18            // ttydefaults.h:80:1:
+	CRPRNT                         = 18            // ttydefaults.h:84:1:
+	CRTSCTS                        = 020000000000  // termios-baud.h:29:1:
+	CS5                            = 0000000       // termios-c_cflag.h:25:1:
+	CS6                            = 0000020       // termios-c_cflag.h:26:1:
+	CS7                            = 0000040       // termios-c_cflag.h:27:1:
+	CS8                            = 0000060       // termios-c_cflag.h:28:1:
+	CSIZE                          = 0000060       // termios-c_cflag.h:24:1:
+	CSTART                         = 17            // ttydefaults.h:75:1:
+	CSTATUS                        = 0             // ttydefaults.h:67:1:
+	CSTOP                          = 19            // ttydefaults.h:76:1:
+	CSTOPB                         = 0000100       // termios-c_cflag.h:29:1:
+	CSUSP                          = 26            // ttydefaults.h:72:1:
+	CTIME                          = 0             // ttydefaults.h:73:1:
+	CWERASE                        = 23            // ttydefaults.h:79:1:
+	ECHO                           = 0000010       // termios-c_lflag.h:29:1:
+	ECHOCTL                        = 0001000       // termios-c_lflag.h:37:1:
+	ECHOE                          = 0000020       // termios-c_lflag.h:30:1:
+	ECHOK                          = 0000040       // termios-c_lflag.h:32:1:
+	ECHOKE                         = 0004000       // termios-c_lflag.h:45:1:
+	ECHONL                         = 0000100       // termios-c_lflag.h:33:1:
+	ECHOPRT                        = 0002000       // termios-c_lflag.h:42:1:
+	EXTA                           = 14            // termios.h:50:1:
+	EXTB                           = 15            // termios.h:51:1:
+	EXTPROC                        = 0200000       // termios-c_lflag.h:57:1:
+	FF0                            = 0000000       // termios-c_oflag.h:51:1:
+	FF1                            = 0100000       // termios-c_oflag.h:52:1:
+	FFDLY                          = 0100000       // termios-c_oflag.h:50:1:
+	FLUSHO                         = 0010000       // termios-c_lflag.h:48:1:
+	HUPCL                          = 0002000       // termios-c_cflag.h:33:1:
+	ICANON                         = 0000002       // termios-c_lflag.h:25:1:
+	ICRNL                          = 0000400       // termios-c_iflag.h:32:1:
+	IEXTEN                         = 0100000       // termios-c_lflag.h:54:1:
+	IGNBRK                         = 0000001       // termios-c_iflag.h:24:1:
+	IGNCR                          = 0000200       // termios-c_iflag.h:31:1:
+	IGNPAR                         = 0000004       // termios-c_iflag.h:26:1:
+	IMAXBEL                        = 0020000       // termios-c_iflag.h:38:1:
+	INLCR                          = 0000100       // termios-c_iflag.h:30:1:
+	INPCK                          = 0000020       // termios-c_iflag.h:28:1:
+	ISIG                           = 0000001       // termios-c_lflag.h:24:1:
+	ISTRIP                         = 0000040       // termios-c_iflag.h:29:1:
+	IUCLC                          = 0001000       // termios-c_iflag.h:33:1:
+	IUTF8                          = 0040000       // termios-c_iflag.h:40:1:
+	IXANY                          = 0004000       // termios-c_iflag.h:36:1:
+	IXOFF                          = 0010000       // termios-c_iflag.h:37:1:
+	IXON                           = 0002000       // termios-c_iflag.h:35:1:
+	NCCS                           = 32            // termios-struct.h:23:1:
+	NL0                            = 0000000       // termios-c_oflag.h:35:1:
+	NL1                            = 0000400       // termios-c_oflag.h:36:1:
+	NLDLY                          = 0000400       // termios-c_oflag.h:34:1:
+	NOFLSH                         = 0000200       // termios-c_lflag.h:34:1:
+	OCRNL                          = 0000010       // termios-c_oflag.h:28:1:
+	OFDEL                          = 0000200       // termios-c_oflag.h:32:1:
+	OFILL                          = 0000100       // termios-c_oflag.h:31:1:
+	OLCUC                          = 0000002       // termios-c_oflag.h:25:1:
+	ONLCR                          = 0000004       // termios-c_oflag.h:27:1:
+	ONLRET                         = 0000040       // termios-c_oflag.h:30:1:
+	ONOCR                          = 0000020       // termios-c_oflag.h:29:1:
+	OPOST                          = 0000001       // termios-c_oflag.h:24:1:
+	PARENB                         = 0000400       // termios-c_cflag.h:31:1:
+	PARMRK                         = 0000010       // termios-c_iflag.h:27:1:
+	PARODD                         = 0001000       // termios-c_cflag.h:32:1:
+	PENDIN                         = 0040000       // termios-c_lflag.h:50:1:
+	TAB0                           = 0000000       // termios-c_oflag.h:43:1:
+	TAB1                           = 0004000       // termios-c_oflag.h:44:1:
+	TAB2                           = 0010000       // termios-c_oflag.h:45:1:
+	TAB3                           = 0014000       // termios-c_oflag.h:46:1:
+	TABDLY                         = 0014000       // termios-c_oflag.h:42:1:
+	TCIFLUSH                       = 0             // termios.h:70:1:
+	TCIOFF                         = 2             // termios.h:66:1:
+	TCIOFLUSH                      = 2             // termios.h:72:1:
+	TCION                          = 3             // termios.h:67:1:
+	TCOFLUSH                       = 1             // termios.h:71:1:
+	TCOOFF                         = 0             // termios.h:64:1:
+	TCOON                          = 1             // termios.h:65:1:
+	TCSADRAIN                      = 1             // termios-tcflow.h:25:1:
+	TCSAFLUSH                      = 2             // termios-tcflow.h:26:1:
+	TCSANOW                        = 0             // termios-tcflow.h:24:1:
+	TIOCSER_TEMT                   = 0x01          // termios.h:60:1:
+	TOSTOP                         = 0000400       // termios-c_lflag.h:35:1:
+	TTYDEF_CFLAG                   = 1440          // ttydefaults.h:49:1:
+	TTYDEF_IFLAG                   = 11554         // ttydefaults.h:46:1:
+	TTYDEF_LFLAG                   = 35355         // ttydefaults.h:48:1:
+	TTYDEF_OFLAG                   = 6149          // ttydefaults.h:47:1:
+	TTYDEF_SPEED                   = 13            // ttydefaults.h:50:1:
+	VDISCARD                       = 13            // termios-c_cc.h:37:1:
+	VEOF                           = 4             // termios-c_cc.h:28:1:
+	VEOL                           = 11            // termios-c_cc.h:35:1:
+	VEOL2                          = 16            // termios-c_cc.h:40:1:
+	VERASE                         = 2             // termios-c_cc.h:26:1:
+	VINTR                          = 0             // termios-c_cc.h:24:1:
+	VKILL                          = 3             // termios-c_cc.h:27:1:
+	VLNEXT                         = 15            // termios-c_cc.h:39:1:
+	VMIN                           = 6             // termios-c_cc.h:30:1:
+	VQUIT                          = 1             // termios-c_cc.h:25:1:
+	VREPRINT                       = 12            // termios-c_cc.h:36:1:
+	VSTART                         = 8             // termios-c_cc.h:32:1:
+	VSTOP                          = 9             // termios-c_cc.h:33:1:
+	VSUSP                          = 10            // termios-c_cc.h:34:1:
+	VSWTC                          = 7             // termios-c_cc.h:31:1:
+	VT0                            = 0000000       // termios-c_oflag.h:56:1:
+	VT1                            = 0040000       // termios-c_oflag.h:57:1:
+	VTDLY                          = 0040000       // termios-c_oflag.h:55:1:
+	VTIME                          = 5             // termios-c_cc.h:29:1:
+	VWERASE                        = 14            // termios-c_cc.h:38:1:
+	XCASE                          = 0000004       // termios-c_lflag.h:27:1:
+	XTABS                          = 0014000       // termios-c_oflag.h:60:1:
+	X_ABILP64                      = 3             // <predefined>:377:1:
+	X_ATFILE_SOURCE                = 1             // features.h:353:1:
+	X_BITS_TIME64_H                = 1             // time64.h:24:1:
+	X_BITS_TYPESIZES_H             = 1             // typesizes.h:24:1:
+	X_BITS_TYPES_H                 = 1             // types.h:24:1:
+	X_DEFAULT_SOURCE               = 1             // features.h:238:1:
+	X_FEATURES_H                   = 1             // features.h:19:1:
+	X_FILE_OFFSET_BITS             = 64            // <builtin>:25:1:
+	X_HAVE_STRUCT_TERMIOS_C_ISPEED = 1             // termios-struct.h:34:1:
+	X_HAVE_STRUCT_TERMIOS_C_OSPEED = 1             // termios-struct.h:35:1:
+	X_LOONGARCH_ARCH               = "loongarch64" // <predefined>:214:1:
+	X_LOONGARCH_ARCH_LOONGARCH64   = 1             // <predefined>:340:1:
+	X_LOONGARCH_FPSET              = 32            // <predefined>:265:1:
+	X_LOONGARCH_SIM                = 3             // <predefined>:233:1:
+	X_LOONGARCH_SPFPSET            = 32            // <predefined>:88:1:
+	X_LOONGARCH_SZINT              = 32            // <predefined>:230:1:
+	X_LOONGARCH_SZLONG             = 64            // <predefined>:388:1:
+	X_LOONGARCH_SZPTR              = 64            // <predefined>:200:1:
+	X_LOONGARCH_TUNE               = "la464"       // <predefined>:245:1:
+	X_LOONGARCH_TUNE_LA464         = 1             // <predefined>:63:1:
+	X_LP64                         = 1             // <predefined>:372:1:
+	X_POSIX_C_SOURCE               = 200809        // features.h:292:1:
+	X_POSIX_SOURCE                 = 1             // features.h:290:1:
+	X_STDC_PREDEF_H                = 1             // <predefined>:223:1:
+	X_SYS_CDEFS_H                  = 1             // cdefs.h:20:1:
+	X_SYS_TTYDEFAULTS_H_           = 0             // ttydefaults.h:41:1:
+	X_TERMIOS_H                    = 1             // termios.h:23:1:
+	Linux                          = 1             // <predefined>:308:1:
+	Unix                           = 1             // <predefined>:247:1:
+)
+
+type Ptrdiff_t = int64 /* <builtin>:3:26 */
+
+type Size_t = uint64 /* <builtin>:9:23 */
+
+type Wchar_t = int32 /* <builtin>:15:24 */
+
+type X__int128_t = struct {
+	Flo int64
+	Fhi int64
+} /* <builtin>:21:43 */ // must match modernc.org/mathutil.Int128
+type X__uint128_t = struct {
+	Flo uint64
+	Fhi uint64
+} /* <builtin>:22:44 */ // must match modernc.org/mathutil.Int128
+
+type X__builtin_va_list = uintptr /* <builtin>:46:14 */
+type X__float128 = float64        /* <builtin>:47:21 */
+
+// Copyright (C) 1991-2023 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+//	POSIX Standard: 7.1-2 General Terminal Interface	<termios.h>
+
+// Copyright (C) 1991-2023 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// These are defined by the user (or the compiler)
+//    to specify the desired environment:
+//
+//    __STRICT_ANSI__	ISO Standard C.
+//    _ISOC99_SOURCE	Extensions to ISO C89 from ISO C99.
+//    _ISOC11_SOURCE	Extensions to ISO C99 from ISO C11.
+//    _ISOC2X_SOURCE	Extensions to ISO C99 from ISO C2X.
+//    __STDC_WANT_LIB_EXT2__
+// 			Extensions to ISO C99 from TR 27431-2:2010.
+//    __STDC_WANT_IEC_60559_BFP_EXT__
+// 			Extensions to ISO C11 from TS 18661-1:2014.
+//    __STDC_WANT_IEC_60559_FUNCS_EXT__
+// 			Extensions to ISO C11 from TS 18661-4:2015.
+//    __STDC_WANT_IEC_60559_TYPES_EXT__
+// 			Extensions to ISO C11 from TS 18661-3:2015.
+//    __STDC_WANT_IEC_60559_EXT__
+// 			ISO C2X interfaces defined only in Annex F.
+//
+//    _POSIX_SOURCE	IEEE Std 1003.1.
+//    _POSIX_C_SOURCE	If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2;
+// 			if >=199309L, add IEEE Std 1003.1b-1993;
+// 			if >=199506L, add IEEE Std 1003.1c-1995;
+// 			if >=200112L, all of IEEE 1003.1-2004
+// 			if >=200809L, all of IEEE 1003.1-2008
+//    _XOPEN_SOURCE	Includes POSIX and XPG things.  Set to 500 if
+// 			Single Unix conformance is wanted, to 600 for the
+// 			sixth revision, to 700 for the seventh revision.
+//    _XOPEN_SOURCE_EXTENDED XPG things and X/Open Unix extensions.
+//    _LARGEFILE_SOURCE	Some more functions for correct standard I/O.
+//    _LARGEFILE64_SOURCE	Additional functionality from LFS for large files.
+//    _FILE_OFFSET_BITS=N	Select default filesystem interface.
+//    _ATFILE_SOURCE	Additional *at interfaces.
+//    _DYNAMIC_STACK_SIZE_SOURCE Select correct (but non compile-time constant)
+// 			MINSIGSTKSZ, SIGSTKSZ and PTHREAD_STACK_MIN.
+//    _GNU_SOURCE		All of the above, plus GNU extensions.
+//    _DEFAULT_SOURCE	The default set of features (taking precedence over
+// 			__STRICT_ANSI__).
+//
+//    _FORTIFY_SOURCE	Add security hardening to many library functions.
+// 			Set to 1, 2 or 3; 3 performs stricter checks than 2, which
+// 			performs stricter checks than 1.
+//
+//    _REENTRANT, _THREAD_SAFE
+// 			Obsolete; equivalent to _POSIX_C_SOURCE=199506L.
+//
+//    The `-ansi' switch to the GNU C compiler, and standards conformance
+//    options such as `-std=c99', define __STRICT_ANSI__.  If none of
+//    these are defined, or if _DEFAULT_SOURCE is defined, the default is
+//    to have _POSIX_SOURCE set to one and _POSIX_C_SOURCE set to
+//    200809L, as well as enabling miscellaneous functions from BSD and
+//    SVID.  If more than one of these are defined, they accumulate.  For
+//    example __STRICT_ANSI__, _POSIX_SOURCE and _POSIX_C_SOURCE together
+//    give you ISO C, 1003.1, and 1003.2, but nothing else.
+//
+//    These are defined by this file and are used by the
+//    header files to decide what to declare or define:
+//
+//    __GLIBC_USE (F)	Define things from feature set F.  This is defined
+// 			to 1 or 0; the subsequent macros are either defined
+// 			or undefined, and those tests should be moved to
+// 			__GLIBC_USE.
+//    __USE_ISOC11		Define ISO C11 things.
+//    __USE_ISOC99		Define ISO C99 things.
+//    __USE_ISOC95		Define ISO C90 AMD1 (C95) things.
+//    __USE_ISOCXX11	Define ISO C++11 things.
+//    __USE_POSIX		Define IEEE Std 1003.1 things.
+//    __USE_POSIX2		Define IEEE Std 1003.2 things.
+//    __USE_POSIX199309	Define IEEE Std 1003.1, and .1b things.
+//    __USE_POSIX199506	Define IEEE Std 1003.1, .1b, .1c and .1i things.
+//    __USE_XOPEN		Define XPG things.
+//    __USE_XOPEN_EXTENDED	Define X/Open Unix things.
+//    __USE_UNIX98		Define Single Unix V2 things.
+//    __USE_XOPEN2K        Define XPG6 things.
+//    __USE_XOPEN2KXSI     Define XPG6 XSI things.
+//    __USE_XOPEN2K8       Define XPG7 things.
+//    __USE_XOPEN2K8XSI    Define XPG7 XSI things.
+//    __USE_LARGEFILE	Define correct standard I/O things.
+//    __USE_LARGEFILE64	Define LFS things with separate names.
+//    __USE_FILE_OFFSET64	Define 64bit interface as default.
+//    __USE_MISC		Define things from 4.3BSD or System V Unix.
+//    __USE_ATFILE		Define *at interfaces and AT_* constants for them.
+//    __USE_DYNAMIC_STACK_SIZE Define correct (but non compile-time constant)
+// 			MINSIGSTKSZ, SIGSTKSZ and PTHREAD_STACK_MIN.
+//    __USE_GNU		Define GNU extensions.
+//    __USE_FORTIFY_LEVEL	Additional security measures used, according to level.
+//
+//    The macros `__GNU_LIBRARY__', `__GLIBC__', and `__GLIBC_MINOR__' are
+//    defined by this file unconditionally.  `__GNU_LIBRARY__' is provided
+//    only for compatibility.  All new code should use the other symbols
+//    to test for features.
+//
+//    All macros listed above as possibly being defined by this file are
+//    explicitly undefined if they are not explicitly defined.
+//    Feature-test macros that are not defined by the user or compiler
+//    but are implied by the other feature-test macros defined (or by the
+//    lack of any definitions) are defined by the file.
+//
+//    ISO C feature test macros depend on the definition of the macro
+//    when an affected header is included, not when the first system
+//    header is included, and so they are handled in
+//    <bits/libc-header-start.h>, which does not have a multiple include
+//    guard.  Feature test macros that can be handled from the first
+//    system header included are handled here.
+
+// Undefine everything, so we get a clean slate.
+
+// Suppress kernel-name space pollution unless user expressedly asks
+//    for it.
+
+// Convenience macro to test the version of gcc.
+//    Use like this:
+//    #if __GNUC_PREREQ (2,8)
+//    ... code requiring gcc 2.8 or later ...
+//    #endif
+//    Note: only works for GCC 2.0 and later, because __GNUC_MINOR__ was
+//    added in 2.0.
+
+// Similarly for clang.  Features added to GCC after version 4.2 may
+//    or may not also be available in clang, and clang's definitions of
+//    __GNUC(_MINOR)__ are fixed at 4 and 2 respectively.  Not all such
+//    features can be queried via __has_extension/__has_feature.
+
+// Whether to use feature set F.
+
+// _BSD_SOURCE and _SVID_SOURCE are deprecated aliases for
+//    _DEFAULT_SOURCE.  If _DEFAULT_SOURCE is present we do not
+//    issue a warning; the expectation is that the source is being
+//    transitioned to use the new macro.
+
+// If _GNU_SOURCE was defined by the user, turn on all the other features.
+
+// If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined,
+//    define _DEFAULT_SOURCE.
+
+// This is to enable the ISO C2X extension.
+
+// This is to enable the ISO C11 extension.
+
+// This is to enable the ISO C99 extension.
+
+// This is to enable the ISO C90 Amendment 1:1995 extension.
+
+// If none of the ANSI/POSIX macros are defined, or if _DEFAULT_SOURCE
+//    is defined, use POSIX.1-2008 (or another version depending on
+//    _XOPEN_SOURCE).
+
+// Some C libraries once required _REENTRANT and/or _THREAD_SAFE to be
+//    defined in all multithreaded code.  GNU libc has not required this
+//    for many years.  We now treat them as compatibility synonyms for
+//    _POSIX_C_SOURCE=199506L, which is the earliest level of POSIX with
+//    comprehensive support for multithreaded code.  Using them never
+//    lowers the selected level of POSIX conformance, only raises it.
+
+// Features part to handle 64-bit time_t support.
+//    Copyright (C) 2021-2023 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// We need to know the word size in order to check the time size.
+// Copyright (C) 1999-2023 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Bit size of the time_t type at glibc build time, general case.
+//    Copyright (C) 2018-2023 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Size in bits of the 'time_t' type of the default ABI.
+
+// The function 'gets' existed in C89, but is impossible to use
+//    safely.  It has been removed from ISO C11 and ISO C++14.  Note: for
+//    compatibility with various implementations of <cstdio>, this test
+//    must consider only the value of __cplusplus when compiling C++.
+
+// GNU formerly extended the scanf functions with modified format
+//    specifiers %as, %aS, and %a[...] that allocate a buffer for the
+//    input using malloc.  This extension conflicts with ISO C99, which
+//    defines %a as a standalone format specifier that reads a floating-
+//    point number; moreover, POSIX.1-2008 provides the same feature
+//    using the modifier letter 'm' instead (%ms, %mS, %m[...]).
+//
+//    We now follow C99 unless GNU extensions are active and the compiler
+//    is specifically in C89 or C++98 mode (strict or not).  For
+//    instance, with GCC, -std=gnu11 will have C99-compliant scanf with
+//    or without -D_GNU_SOURCE, but -std=c89 -D_GNU_SOURCE will have the
+//    old extension.
+
+// ISO C2X added support for a 0b or 0B prefix on binary constants as
+//    inputs to strtol-family functions (base 0 or 2).  This macro is
+//    used to condition redirection in headers to allow that redirection
+//    to be disabled when building those functions, despite _GNU_SOURCE
+//    being defined.
+
+// Get definitions of __STDC_* predefined macros, if the compiler has
+//    not preincluded this header automatically.
+// Copyright (C) 1991-2023 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// This macro indicates that the installed library is the GNU C Library.
+//    For historic reasons the value now is 6 and this will stay from now
+//    on.  The use of this variable is deprecated.  Use __GLIBC__ and
+//    __GLIBC_MINOR__ now (see below) when you want to test for a specific
+//    GNU C library version and use the values in <gnu/lib-names.h> to get
+//    the sonames of the shared libraries.
+
+// Major and minor version number of the GNU C library package.  Use
+//    these macros to test for features in specific releases.
+
+// This is here only because every header file already includes this one.
+// Copyright (C) 1992-2023 Free Software Foundation, Inc.
+//    Copyright The GNU Toolchain Authors.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// We are almost always included from features.h.
+
+// The GNU libc does not support any K&R compilers or the traditional mode
+//    of ISO C compilers anymore.  Check for some of the combinations not
+//    supported anymore.
+
+// Some user header file might have defined this before.
+
+// Compilers that lack __has_attribute may object to
+//        #if defined __has_attribute && __has_attribute (...)
+//    even though they do not need to evaluate the right-hand side of the &&.
+//    Similarly for __has_builtin, etc.
+
+// All functions, except those with callbacks or those that
+//    synchronize memory, are leaf functions.
+
+// GCC can always grok prototypes.  For C++ programs we add throw()
+//    to help it optimize the function calls.  But this only works with
+//    gcc 2.8.x and egcs.  For gcc 3.4 and up we even mark C functions
+//    as non-throwing using a function attribute since programs can use
+//    the -fexceptions options for C code as well.
+
+// These two macros are not used in glibc anymore.  They are kept here
+//    only because some other projects expect the macros to be defined.
+
+// For these things, GCC behaves the ANSI way normally,
+//    and the non-ANSI way under -traditional.
+
+// This is not a typedef so `const __ptr_t' does the right thing.
+
+// C++ needs to know that types and declarations are C, not C++.
+
+// Fortify support.
+
+// Use __builtin_dynamic_object_size at _FORTIFY_SOURCE=3 when available.
+
+// Support for flexible arrays.
+//    Headers that should use flexible arrays only if they're "real"
+//    (e.g. only if they won't affect sizeof()) should test
+//    #if __glibc_c99_flexarr_available.
+
+// __asm__ ("xyz") is used throughout the headers to rename functions
+//    at the assembly language level.  This is wrapped by the __REDIRECT
+//    macro, in order to support compilers that can do this some other
+//    way.  When compilers don't support asm-names at all, we have to do
+//    preprocessor tricks instead (which don't have exactly the right
+//    semantics, but it's the best we can do).
+//
+//    Example:
+//    int __REDIRECT(setpgrp, (__pid_t pid, __pid_t pgrp), setpgid);
+
+//
+// #elif __SOME_OTHER_COMPILER__
+//
+// # define __REDIRECT(name, proto, alias) name proto; 	_Pragma("let " #name " = " #alias)
+
+// GCC and clang have various useful declarations that can be made with
+//    the '__attribute__' syntax.  All of the ways we use this do fine if
+//    they are omitted for compilers that don't understand it.
+
+// At some point during the gcc 2.96 development the `malloc' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// Tell the compiler which arguments to an allocation function
+//    indicate the size of the allocation.
+
+// Tell the compiler which argument to an allocation function
+//    indicates the alignment of the allocation.
+
+// At some point during the gcc 2.96 development the `pure' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// This declaration tells the compiler that the value is constant.
+
+// At some point during the gcc 3.1 development the `used' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// Since version 3.2, gcc allows marking deprecated functions.
+
+// Since version 4.5, gcc also allows one to specify the message printed
+//    when a deprecated function is used.  clang claims to be gcc 4.2, but
+//    may also support this feature.
+
+// At some point during the gcc 2.8 development the `format_arg' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+//    If several `format_arg' attributes are given for the same function, in
+//    gcc-3.0 and older, all but the last one are ignored.  In newer gccs,
+//    all designated arguments are considered.
+
+// At some point during the gcc 2.97 development the `strfmon' format
+//    attribute for functions was introduced.  We don't want to use it
+//    unconditionally (although this would be possible) since it
+//    generates warnings.
+
+// The nonnull function attribute marks pointer parameters that
+//    must not be NULL.  This has the name __nonnull in glibc,
+//    and __attribute_nonnull__ in files shared with Gnulib to avoid
+//    collision with a different __nonnull in DragonFlyBSD 5.9.
+
+// The returns_nonnull function attribute marks the return type of the function
+//    as always being non-null.
+
+// If fortification mode, we warn about unused results of certain
+//    function calls which can lead to problems.
+
+// Forces a function to be always inlined.
+// The Linux kernel defines __always_inline in stddef.h (283d7573), and
+//    it conflicts with this definition.  Therefore undefine it first to
+//    allow either header to be included first.
+
+// Associate error messages with the source location of the call site rather
+//    than with the source location inside the function.
+
+// GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99
+//    inline semantics, unless -fgnu89-inline is used.  Using __GNUC_STDC_INLINE__
+//    or __GNUC_GNU_INLINE is not a good enough check for gcc because gcc versions
+//    older than 4.3 may define these macros and still not guarantee GNU inlining
+//    semantics.
+//
+//    clang++ identifies itself as gcc-4.2, but has support for GNU inlining
+//    semantics, that can be checked for by using the __GNUC_STDC_INLINE_ and
+//    __GNUC_GNU_INLINE__ macro definitions.
+
+// GCC 4.3 and above allow passing all anonymous arguments of an
+//    __extern_always_inline function to some other vararg function.
+
+// It is possible to compile containing GCC extensions even if GCC is
+//    run in pedantic mode if the uses are carefully marked using the
+//    `__extension__' keyword.  But this is not generally available before
+//    version 2.8.
+
+// __restrict is known in EGCS 1.2 and above, and in clang.
+//    It works also in C++ mode (outside of arrays), but only when spelled
+//    as '__restrict', not 'restrict'.
+
+// ISO C99 also allows to declare arrays as non-overlapping.  The syntax is
+//      array_name[restrict]
+//    GCC 3.1 and clang support this.
+//    This syntax is not usable in C++ mode.
+
+// Describes a char array whose address can safely be passed as the first
+//    argument to strncpy and strncat, as the char array is not necessarily
+//    a NUL-terminated string.
+
+// Undefine (also defined in libc-symbols.h).
+// Copies attributes from the declaration or type referenced by
+//    the argument.
+
+// Gnulib avoids including these, as they don't work on non-glibc or
+//    older glibc platforms.
+// Copyright (C) 1999-2023 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Properties of long double type.  ldbl-128 version.
+//    Copyright (C) 2016-2023 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License  published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// long double is distinct from double, so there is nothing to
+//    define here.
+
+// __glibc_macro_warning (MESSAGE) issues warning MESSAGE.  This is
+//    intended for use in preprocessor macros.
+//
+//    Note: MESSAGE must be a _single_ string; concatenation of string
+//    literals is not supported.
+
+// Generic selection (ISO C11) is a C-only feature, available in GCC
+//    since version 4.9.  Previous versions do not provide generic
+//    selection, even though they might set __STDC_VERSION__ to 201112L,
+//    when in -std=c11 mode.  Thus, we must check for !defined __GNUC__
+//    when testing __STDC_VERSION__ for generic selection support.
+//    On the other hand, Clang also defines __GNUC__, so a clang-specific
+//    check is required to enable the use of generic selection.
+
+// Designates a 1-based positional argument ref-index of pointer type
+//    that can be used to access size-index elements of the pointed-to
+//    array according to access mode, or at least one element when
+//    size-index is not provided:
+//      access (access-mode, <ref-index> [, <size-index>])
+// For _FORTIFY_SOURCE == 3 we use __builtin_dynamic_object_size, which may
+//    use the access attribute to get object sizes from function definition
+//    arguments, so we can't use them on functions we fortify.  Drop the object
+//    size hints for such functions.
+
+// Designates dealloc as a function to call to deallocate objects
+//    allocated by the declared function.
+
+// Specify that a function such as setjmp or vfork may return
+//    twice.
+
+// If we don't have __REDIRECT, prototypes will be missing if
+//    __USE_FILE_OFFSET64 but not __USE_LARGEFILE[64].
+
+// Decide whether we can define 'extern inline' functions in headers.
+
+// This is here only because every header file already includes this one.
+//    Get the definitions of all the appropriate `__stub_FUNCTION' symbols.
+//    <gnu/stubs.h> contains `#define __stub_FUNCTION' when FUNCTION is a stub
+//    that will always return failure (and set errno to ENOSYS).
+// This file is automatically generated.
+//    This file selects the right generated file of `__stub_FUNCTION' macros
+//    based on the architecture being compiled for.
+
+// Copyright (C) 1999-2023 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// This file is automatically generated.
+//    It defines a symbol `__stub_FUNCTION' for each function
+//    in the C library which is a stub, meaning it will fail
+//    every time called, usually setting errno to ENOSYS.
+
+// We need `pid_t'.
+// bits/types.h -- definitions of __*_t types underlying *_t types.
+//    Copyright (C) 2002-2023 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Never include this file directly; use <sys/types.h> instead.
+
+// Copyright (C) 1991-2023 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Copyright (C) 1999-2023 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Bit size of the time_t type at glibc build time, general case.
+//    Copyright (C) 2018-2023 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Size in bits of the 'time_t' type of the default ABI.
+
+// Convenience types.
+type X__u_char = uint8   /* types.h:31:23 */
+type X__u_short = uint16 /* types.h:32:28 */
+type X__u_int = uint32   /* types.h:33:22 */
+type X__u_long = uint64  /* types.h:34:27 */
+
+// Fixed-size types, underlying types depend on word size and compiler.
+type X__int8_t = int8     /* types.h:37:21 */
+type X__uint8_t = uint8   /* types.h:38:23 */
+type X__int16_t = int16   /* types.h:39:26 */
+type X__uint16_t = uint16 /* types.h:40:28 */
+type X__int32_t = int32   /* types.h:41:20 */
+type X__uint32_t = uint32 /* types.h:42:22 */
+type X__int64_t = int64   /* types.h:44:25 */
+type X__uint64_t = uint64 /* types.h:45:27 */
+
+// Smallest types with at least a given width.
+type X__int_least8_t = int8     /* types.h:52:18 */
+type X__uint_least8_t = uint8   /* types.h:53:19 */
+type X__int_least16_t = int16   /* types.h:54:19 */
+type X__uint_least16_t = uint16 /* types.h:55:20 */
+type X__int_least32_t = int32   /* types.h:56:19 */
+type X__uint_least32_t = uint32 /* types.h:57:20 */
+type X__int_least64_t = int64   /* types.h:58:19 */
+type X__uint_least64_t = uint64 /* types.h:59:20 */
+
+// quad_t is also 64 bits.
+type X__quad_t = int64    /* types.h:63:18 */
+type X__u_quad_t = uint64 /* types.h:64:27 */
+
+// Largest integral types.
+type X__intmax_t = int64   /* types.h:72:18 */
+type X__uintmax_t = uint64 /* types.h:73:27 */
+
+// The machine-dependent file <bits/typesizes.h> defines __*_T_TYPE
+//    macros for each of the OS types we define below.  The definitions
+//    of those macros must use the following macros for underlying types.
+//    We define __S<SIZE>_TYPE and __U<SIZE>_TYPE for the signed and unsigned
+//    variants of each of the following integer types on this machine.
+//
+// 	16		-- "natural" 16-bit type (always short)
+// 	32		-- "natural" 32-bit type (always int)
+// 	64		-- "natural" 64-bit type (long or long long)
+// 	LONG32		-- 32-bit type, traditionally long
+// 	QUAD		-- 64-bit type, traditionally long long
+// 	WORD		-- natural type of __WORDSIZE bits (int or long)
+// 	LONGWORD	-- type of __WORDSIZE bits, traditionally long
+//
+//    We distinguish WORD/LONGWORD, 32/LONG32, and 64/QUAD so that the
+//    conventional uses of `long' or `long long' type modifiers match the
+//    types we define, even when a less-adorned type would be the same size.
+//    This matters for (somewhat) portably writing printf/scanf formats for
+//    these types, where using the appropriate l or ll format modifiers can
+//    make the typedefs and the formats match up across all GNU platforms.  If
+//    we used `long' when it's 64 bits where `long long' is expected, then the
+//    compiler would warn about the formats not matching the argument types,
+//    and the programmer changing them to shut up the compiler would break the
+//    program's portability.
+//
+//    Here we assume what is presently the case in all the GCC configurations
+//    we support: long long is always 64 bits, long is always word/address size,
+//    and int is always 32 bits.
+
+// No need to mark the typedef with __extension__.
+// bits/typesizes.h -- underlying types for *_t.  For the generic Linux ABI.
+//    Copyright (C) 2011-2023 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+// See <bits/types.h> for the meaning of these macros.  This file exists so
+//    that <bits/types.h> need not vary across different GNU platforms.
+
+// Tell the libc code that off_t and off64_t are actually the same type
+//    for all ABI purposes, even if possibly expressed as different base types
+//    for C type-checking purposes.
+
+// Same for ino_t and ino64_t.
+
+// And for __rlim_t and __rlim64_t.
+
+// And for fsblkcnt_t, fsblkcnt64_t, fsfilcnt_t and fsfilcnt64_t.
+
+// And for getitimer, setitimer and rusage
+
+// Number of descriptors that can fit in an `fd_set'.
+
+// bits/time64.h -- underlying types for __time64_t.  Generic version.
+//    Copyright (C) 2018-2023 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Define __TIME64_T_TYPE so that it is always a 64-bit type.
+
+// If we already have 64-bit time type then use it.
+
+type X__dev_t = uint64                     /* types.h:145:25 */ // Type of device numbers.
+type X__uid_t = uint32                     /* types.h:146:25 */ // Type of user identifications.
+type X__gid_t = uint32                     /* types.h:147:25 */ // Type of group identifications.
+type X__ino_t = uint64                     /* types.h:148:25 */ // Type of file serial numbers.
+type X__ino64_t = uint64                   /* types.h:149:27 */ // Type of file serial numbers (LFS).
+type X__mode_t = uint32                    /* types.h:150:26 */ // Type of file attribute bitmasks.
+type X__nlink_t = uint32                   /* types.h:151:27 */ // Type of file link counts.
+type X__off_t = int64                      /* types.h:152:25 */ // Type of file sizes and offsets.
+type X__off64_t = int64                    /* types.h:153:27 */ // Type of file sizes and offsets (LFS).
+type X__pid_t = int32                      /* types.h:154:25 */ // Type of process identifications.
+type X__fsid_t = struct{ F__val [2]int32 } /* types.h:155:26 */ // Type of file system IDs.
+type X__clock_t = int64                    /* types.h:156:27 */ // Type of CPU usage counts.
+type X__rlim_t = uint64                    /* types.h:157:26 */ // Type for resource measurement.
+type X__rlim64_t = uint64                  /* types.h:158:28 */ // Type for resource measurement (LFS).
+type X__id_t = uint32                      /* types.h:159:24 */ // General type for IDs.
+type X__time_t = int64                     /* types.h:160:26 */ // Seconds since the Epoch.
+type X__useconds_t = uint32                /* types.h:161:30 */ // Count of microseconds.
+type X__suseconds_t = int64                /* types.h:162:31 */ // Signed count of microseconds.
+type X__suseconds64_t = int64              /* types.h:163:33 */
+
+type X__daddr_t = int32 /* types.h:165:27 */ // The type of a disk address.
+type X__key_t = int32   /* types.h:166:25 */ // Type of an IPC key.
+
+// Clock ID used in clock and timer functions.
+type X__clockid_t = int32 /* types.h:169:29 */
+
+// Timer ID returned by `timer_create'.
+type X__timer_t = uintptr /* types.h:172:12 */
+
+// Type to represent block size.
+type X__blksize_t = int32 /* types.h:175:29 */
+
+// Types from the Large File Support interface.
+
+// Type to count number of disk blocks.
+type X__blkcnt_t = int64   /* types.h:180:28 */
+type X__blkcnt64_t = int64 /* types.h:181:30 */
+
+// Type to count file system blocks.
+type X__fsblkcnt_t = uint64   /* types.h:184:30 */
+type X__fsblkcnt64_t = uint64 /* types.h:185:32 */
+
+// Type to count file system nodes.
+type X__fsfilcnt_t = uint64   /* types.h:188:30 */
+type X__fsfilcnt64_t = uint64 /* types.h:189:32 */
+
+// Type of miscellaneous file system fields.
+type X__fsword_t = int64 /* types.h:192:28 */
+
+type X__ssize_t = int64 /* types.h:194:27 */ // Type of a byte count, or error.
+
+// Signed long type used in system calls.
+type X__syscall_slong_t = int64 /* types.h:197:33 */
+// Unsigned long type used in system calls.
+type X__syscall_ulong_t = uint64 /* types.h:199:33 */
+
+// These few don't really vary by system, they always correspond
+//
+//	to one of the other defined types.
+type X__loff_t = int64    /* types.h:203:19 */ // Type of file sizes and offsets (LFS).
+type X__caddr_t = uintptr /* types.h:204:14 */
+
+// Duplicates info from stdint.h but this is used in unistd.h.
+type X__intptr_t = int64 /* types.h:207:25 */
+
+// Duplicate info from sys/socket.h.
+type X__socklen_t = uint32 /* types.h:210:23 */
+
+// C99: An integer type that can be accessed as an atomic entity,
+//
+//	even in the presence of asynchronous interrupts.
+//	It is not currently necessary for this to be machine-specific.
+type X__sig_atomic_t = int32 /* types.h:215:13 */
+
+// Seconds since the Epoch, visible to user code when time_t is too
+//    narrow only for consistency with the old way of widening too-narrow
+//    types.  User code should never use __time64_t.
+
+type Pid_t = int32 /* termios.h:30:17 */
+
+// Get the system-dependent definitions of `struct termios', `tcflag_t',
+//    `cc_t', `speed_t', and all the macros specifying the flag bits.
+// termios type and macro definitions.  Linux version.
+//    Copyright (C) 1993-2023 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+type Cc_t = uint8      /* termios.h:23:23 */
+type Speed_t = uint32  /* termios.h:24:22 */
+type Tcflag_t = uint32 /* termios.h:25:22 */
+
+// struct termios definition.  Linux/generic version.
+//    Copyright (C) 2019-2023 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+type Termios = struct {
+	Fc_iflag     uint32
+	Fc_oflag     uint32
+	Fc_cflag     uint32
+	Fc_lflag     uint32
+	Fc_line      uint8
+	Fc_cc        [32]uint8
+	F__ccgo_pad1 [3]byte
+	Fc_ispeed    uint32
+	Fc_ospeed    uint32
+} /* termios-struct.h:24:1 */
+
+// -
+// Copyright (c) 1982, 1986, 1993
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttydefaults.h	8.4 (Berkeley) 1/21/94
+
+// System wide defaults for terminal state.  Linux version.
+
+// Defaults on "first" open.
+
+// Control Character Defaults
+// compat
+
+// PROTECTED INCLUSION ENDS HERE
+
+// #define TTYDEFCHARS to include an array of default control characters.
+
+var _ int8 /* gen.c:2:13: */
diff --git a/vendor/modernc.org/libc/termios/termios_linux_mips64le.go b/vendor/modernc.org/libc/termios/termios_linux_mips64le.go
new file mode 100644
index 0000000..494b201
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/termios_linux_mips64le.go
@@ -0,0 +1,1024 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_linux_amd64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+import (
+	"math"
+	"reflect"
+	"sync/atomic"
+	"unsafe"
+)
+
+var _ = math.Pi
+var _ reflect.Kind
+var _ atomic.Value
+var _ unsafe.Pointer
+
+const (
+	B0                             = 0000000      // termios.h:33:1:
+	B1000000                       = 0010010      // termios-baud.h:40:1:
+	B110                           = 0000003      // termios.h:36:1:
+	B115200                        = 0010002      // termios-baud.h:34:1:
+	B1152000                       = 0010011      // termios-baud.h:41:1:
+	B1200                          = 0000011      // termios.h:42:1:
+	B134                           = 0000004      // termios.h:37:1:
+	B150                           = 0000005      // termios.h:38:1:
+	B1500000                       = 0010012      // termios-baud.h:42:1:
+	B1800                          = 0000012      // termios.h:43:1:
+	B19200                         = 0000016      // termios.h:47:1:
+	B200                           = 0000006      // termios.h:39:1:
+	B2000000                       = 0010013      // termios-baud.h:43:1:
+	B230400                        = 0010003      // termios-baud.h:35:1:
+	B2400                          = 0000013      // termios.h:44:1:
+	B2500000                       = 0010014      // termios-baud.h:44:1:
+	B300                           = 0000007      // termios.h:40:1:
+	B3000000                       = 0010015      // termios-baud.h:45:1:
+	B3500000                       = 0010016      // termios-baud.h:46:1:
+	B38400                         = 0000017      // termios.h:48:1:
+	B4000000                       = 0010017      // termios-baud.h:47:1:
+	B460800                        = 0010004      // termios-baud.h:36:1:
+	B4800                          = 0000014      // termios.h:45:1:
+	B50                            = 0000001      // termios.h:34:1:
+	B500000                        = 0010005      // termios-baud.h:37:1:
+	B57600                         = 0010001      // termios-baud.h:33:1:
+	B576000                        = 0010006      // termios-baud.h:38:1:
+	B600                           = 0000010      // termios.h:41:1:
+	B75                            = 0000002      // termios.h:35:1:
+	B921600                        = 0010007      // termios-baud.h:39:1:
+	B9600                          = 0000015      // termios.h:46:1:
+	BRKINT                         = 0000002      // termios-c_iflag.h:25:1:
+	BS0                            = 0000000      // termios-c_oflag.h:48:1:
+	BS1                            = 0020000      // termios-c_oflag.h:49:1:
+	BSDLY                          = 0020000      // termios-c_oflag.h:47:1:
+	CBAUD                          = 000000010017 // termios-baud.h:24:1:
+	CBAUDEX                        = 000000010000 // termios-baud.h:25:1:
+	CBRK                           = 0            // ttydefaults.h:83:1:
+	CDISCARD                       = 15           // ttydefaults.h:78:1:
+	CDSUSP                         = 25           // ttydefaults.h:74:1:
+	CEOF                           = 4            // ttydefaults.h:56:1:
+	CEOL                           = 0            // ttydefaults.h:60:1:
+	CEOT                           = 4            // ttydefaults.h:81:1:
+	CERASE                         = 0177         // ttydefaults.h:62:1:
+	CFLUSH                         = 15           // ttydefaults.h:85:1:
+	CIBAUD                         = 002003600000 // termios-baud.h:27:1:
+	CINTR                          = 3            // ttydefaults.h:63:1:
+	CKILL                          = 21           // ttydefaults.h:69:1:
+	CLNEXT                         = 22           // ttydefaults.h:77:1:
+	CLOCAL                         = 0004000      // termios-c_cflag.h:34:1:
+	CMIN                           = 1            // ttydefaults.h:70:1:
+	CMSPAR                         = 010000000000 // termios-baud.h:28:1:
+	CQUIT                          = 034          // ttydefaults.h:71:1:
+	CR0                            = 0000000      // termios-c_oflag.h:38:1:
+	CR1                            = 0001000      // termios-c_oflag.h:39:1:
+	CR2                            = 0002000      // termios-c_oflag.h:40:1:
+	CR3                            = 0003000      // termios-c_oflag.h:41:1:
+	CRDLY                          = 0003000      // termios-c_oflag.h:37:1:
+	CREAD                          = 0000200      // termios-c_cflag.h:30:1:
+	CREPRINT                       = 18           // ttydefaults.h:80:1:
+	CRPRNT                         = 18           // ttydefaults.h:84:1:
+	CRTSCTS                        = 020000000000 // termios-baud.h:29:1:
+	CS5                            = 0000000      // termios-c_cflag.h:25:1:
+	CS6                            = 0000020      // termios-c_cflag.h:26:1:
+	CS7                            = 0000040      // termios-c_cflag.h:27:1:
+	CS8                            = 0000060      // termios-c_cflag.h:28:1:
+	CSIZE                          = 0000060      // termios-c_cflag.h:24:1:
+	CSTART                         = 17           // ttydefaults.h:75:1:
+	CSTATUS                        = 0            // ttydefaults.h:67:1:
+	CSTOP                          = 19           // ttydefaults.h:76:1:
+	CSTOPB                         = 0000100      // termios-c_cflag.h:29:1:
+	CSUSP                          = 26           // ttydefaults.h:72:1:
+	CTIME                          = 0            // ttydefaults.h:73:1:
+	CWERASE                        = 23           // ttydefaults.h:79:1:
+	ECHO                           = 0000010      // termios-c_lflag.h:29:1:
+	ECHOCTL                        = 0001000      // termios-c_lflag.h:37:1:
+	ECHOE                          = 0000020      // termios-c_lflag.h:30:1:
+	ECHOK                          = 0000040      // termios-c_lflag.h:32:1:
+	ECHOKE                         = 0004000      // termios-c_lflag.h:45:1:
+	ECHONL                         = 0000100      // termios-c_lflag.h:33:1:
+	ECHOPRT                        = 0002000      // termios-c_lflag.h:42:1:
+	EXTA                           = 14           // termios.h:50:1:
+	EXTB                           = 15           // termios.h:51:1:
+	EXTPROC                        = 0200000      // termios-c_lflag.h:57:1:
+	FF0                            = 0000000      // termios-c_oflag.h:51:1:
+	FF1                            = 0100000      // termios-c_oflag.h:52:1:
+	FFDLY                          = 0100000      // termios-c_oflag.h:50:1:
+	FLUSHO                         = 0010000      // termios-c_lflag.h:48:1:
+	HUPCL                          = 0002000      // termios-c_cflag.h:33:1:
+	ICANON                         = 0000002      // termios-c_lflag.h:25:1:
+	ICRNL                          = 0000400      // termios-c_iflag.h:32:1:
+	IEXTEN                         = 0100000      // termios-c_lflag.h:54:1:
+	IGNBRK                         = 0000001      // termios-c_iflag.h:24:1:
+	IGNCR                          = 0000200      // termios-c_iflag.h:31:1:
+	IGNPAR                         = 0000004      // termios-c_iflag.h:26:1:
+	IMAXBEL                        = 0020000      // termios-c_iflag.h:38:1:
+	INLCR                          = 0000100      // termios-c_iflag.h:30:1:
+	INPCK                          = 0000020      // termios-c_iflag.h:28:1:
+	ISIG                           = 0000001      // termios-c_lflag.h:24:1:
+	ISTRIP                         = 0000040      // termios-c_iflag.h:29:1:
+	IUCLC                          = 0001000      // termios-c_iflag.h:33:1:
+	IUTF8                          = 0040000      // termios-c_iflag.h:40:1:
+	IXANY                          = 0004000      // termios-c_iflag.h:36:1:
+	IXOFF                          = 0010000      // termios-c_iflag.h:37:1:
+	IXON                           = 0002000      // termios-c_iflag.h:35:1:
+	NCCS                           = 32           // termios-struct.h:23:1:
+	NL0                            = 0000000      // termios-c_oflag.h:35:1:
+	NL1                            = 0000400      // termios-c_oflag.h:36:1:
+	NLDLY                          = 0000400      // termios-c_oflag.h:34:1:
+	NOFLSH                         = 0000200      // termios-c_lflag.h:34:1:
+	OCRNL                          = 0000010      // termios-c_oflag.h:28:1:
+	OFDEL                          = 0000200      // termios-c_oflag.h:32:1:
+	OFILL                          = 0000100      // termios-c_oflag.h:31:1:
+	OLCUC                          = 0000002      // termios-c_oflag.h:25:1:
+	ONLCR                          = 0000004      // termios-c_oflag.h:27:1:
+	ONLRET                         = 0000040      // termios-c_oflag.h:30:1:
+	ONOCR                          = 0000020      // termios-c_oflag.h:29:1:
+	OPOST                          = 0000001      // termios-c_oflag.h:24:1:
+	PARENB                         = 0000400      // termios-c_cflag.h:31:1:
+	PARMRK                         = 0000010      // termios-c_iflag.h:27:1:
+	PARODD                         = 0001000      // termios-c_cflag.h:32:1:
+	PENDIN                         = 0040000      // termios-c_lflag.h:50:1:
+	TAB0                           = 0000000      // termios-c_oflag.h:43:1:
+	TAB1                           = 0004000      // termios-c_oflag.h:44:1:
+	TAB2                           = 0010000      // termios-c_oflag.h:45:1:
+	TAB3                           = 0014000      // termios-c_oflag.h:46:1:
+	TABDLY                         = 0014000      // termios-c_oflag.h:42:1:
+	TCIFLUSH                       = 0            // termios.h:70:1:
+	TCIOFF                         = 2            // termios.h:66:1:
+	TCIOFLUSH                      = 2            // termios.h:72:1:
+	TCION                          = 3            // termios.h:67:1:
+	TCOFLUSH                       = 1            // termios.h:71:1:
+	TCOOFF                         = 0            // termios.h:64:1:
+	TCOON                          = 1            // termios.h:65:1:
+	TCSADRAIN                      = 1            // termios-tcflow.h:25:1:
+	TCSAFLUSH                      = 2            // termios-tcflow.h:26:1:
+	TCSANOW                        = 0            // termios-tcflow.h:24:1:
+	TIOCSER_TEMT                   = 0x01         // termios.h:60:1:
+	TOSTOP                         = 0000400      // termios-c_lflag.h:35:1:
+	TTYDEF_CFLAG                   = 1440         // ttydefaults.h:49:1:
+	TTYDEF_IFLAG                   = 11554        // ttydefaults.h:46:1:
+	TTYDEF_LFLAG                   = 35355        // ttydefaults.h:48:1:
+	TTYDEF_OFLAG                   = 6149         // ttydefaults.h:47:1:
+	TTYDEF_SPEED                   = 13           // ttydefaults.h:50:1:
+	VDISCARD                       = 13           // termios-c_cc.h:37:1:
+	VEOF                           = 4            // termios-c_cc.h:28:1:
+	VEOL                           = 11           // termios-c_cc.h:35:1:
+	VEOL2                          = 16           // termios-c_cc.h:40:1:
+	VERASE                         = 2            // termios-c_cc.h:26:1:
+	VINTR                          = 0            // termios-c_cc.h:24:1:
+	VKILL                          = 3            // termios-c_cc.h:27:1:
+	VLNEXT                         = 15           // termios-c_cc.h:39:1:
+	VMIN                           = 6            // termios-c_cc.h:30:1:
+	VQUIT                          = 1            // termios-c_cc.h:25:1:
+	VREPRINT                       = 12           // termios-c_cc.h:36:1:
+	VSTART                         = 8            // termios-c_cc.h:32:1:
+	VSTOP                          = 9            // termios-c_cc.h:33:1:
+	VSUSP                          = 10           // termios-c_cc.h:34:1:
+	VSWTC                          = 7            // termios-c_cc.h:31:1:
+	VT0                            = 0000000      // termios-c_oflag.h:56:1:
+	VT1                            = 0040000      // termios-c_oflag.h:57:1:
+	VTDLY                          = 0040000      // termios-c_oflag.h:55:1:
+	VTIME                          = 5            // termios-c_cc.h:29:1:
+	VWERASE                        = 14           // termios-c_cc.h:38:1:
+	XCASE                          = 0000004      // termios-c_lflag.h:27:1:
+	XTABS                          = 0014000      // termios-c_oflag.h:60:1:
+	X_ATFILE_SOURCE                = 1            // features.h:342:1:
+	X_BITS_TIME64_H                = 1            // time64.h:24:1:
+	X_BITS_TYPESIZES_H             = 1            // typesizes.h:24:1:
+	X_BITS_TYPES_H                 = 1            // types.h:24:1:
+	X_DEFAULT_SOURCE               = 1            // features.h:227:1:
+	X_FEATURES_H                   = 1            // features.h:19:1:
+	X_FILE_OFFSET_BITS             = 64           // <builtin>:25:1:
+	X_HAVE_STRUCT_TERMIOS_C_ISPEED = 1            // termios-struct.h:34:1:
+	X_HAVE_STRUCT_TERMIOS_C_OSPEED = 1            // termios-struct.h:35:1:
+	X_LP64                         = 1            // <predefined>:284:1:
+	X_POSIX_C_SOURCE               = 200809       // features.h:281:1:
+	X_POSIX_SOURCE                 = 1            // features.h:279:1:
+	X_STDC_PREDEF_H                = 1            // <predefined>:162:1:
+	X_SYS_CDEFS_H                  = 1            // cdefs.h:19:1:
+	X_SYS_TTYDEFAULTS_H_           = 0            // ttydefaults.h:41:1:
+	X_TERMIOS_H                    = 1            // termios.h:23:1:
+	Linux                          = 1            // <predefined>:231:1:
+	Unix                           = 1            // <predefined>:177:1:
+)
+
+type Ptrdiff_t = int64 /* <builtin>:3:26 */
+
+type Size_t = uint64 /* <builtin>:9:23 */
+
+type Wchar_t = int32 /* <builtin>:15:24 */
+
+type X__int128_t = struct {
+	Flo int64
+	Fhi int64
+} /* <builtin>:21:43 */ // must match modernc.org/mathutil.Int128
+type X__uint128_t = struct {
+	Flo uint64
+	Fhi uint64
+} /* <builtin>:22:44 */ // must match modernc.org/mathutil.Int128
+
+type X__builtin_va_list = uintptr /* <builtin>:46:14 */
+type X__float128 = float64        /* <builtin>:47:21 */
+
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+//	POSIX Standard: 7.1-2 General Terminal Interface	<termios.h>
+
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// These are defined by the user (or the compiler)
+//    to specify the desired environment:
+//
+//    __STRICT_ANSI__	ISO Standard C.
+//    _ISOC99_SOURCE	Extensions to ISO C89 from ISO C99.
+//    _ISOC11_SOURCE	Extensions to ISO C99 from ISO C11.
+//    _ISOC2X_SOURCE	Extensions to ISO C99 from ISO C2X.
+//    __STDC_WANT_LIB_EXT2__
+// 			Extensions to ISO C99 from TR 27431-2:2010.
+//    __STDC_WANT_IEC_60559_BFP_EXT__
+// 			Extensions to ISO C11 from TS 18661-1:2014.
+//    __STDC_WANT_IEC_60559_FUNCS_EXT__
+// 			Extensions to ISO C11 from TS 18661-4:2015.
+//    __STDC_WANT_IEC_60559_TYPES_EXT__
+// 			Extensions to ISO C11 from TS 18661-3:2015.
+//
+//    _POSIX_SOURCE	IEEE Std 1003.1.
+//    _POSIX_C_SOURCE	If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2;
+// 			if >=199309L, add IEEE Std 1003.1b-1993;
+// 			if >=199506L, add IEEE Std 1003.1c-1995;
+// 			if >=200112L, all of IEEE 1003.1-2004
+// 			if >=200809L, all of IEEE 1003.1-2008
+//    _XOPEN_SOURCE	Includes POSIX and XPG things.  Set to 500 if
+// 			Single Unix conformance is wanted, to 600 for the
+// 			sixth revision, to 700 for the seventh revision.
+//    _XOPEN_SOURCE_EXTENDED XPG things and X/Open Unix extensions.
+//    _LARGEFILE_SOURCE	Some more functions for correct standard I/O.
+//    _LARGEFILE64_SOURCE	Additional functionality from LFS for large files.
+//    _FILE_OFFSET_BITS=N	Select default filesystem interface.
+//    _ATFILE_SOURCE	Additional *at interfaces.
+//    _GNU_SOURCE		All of the above, plus GNU extensions.
+//    _DEFAULT_SOURCE	The default set of features (taking precedence over
+// 			__STRICT_ANSI__).
+//
+//    _FORTIFY_SOURCE	Add security hardening to many library functions.
+// 			Set to 1 or 2; 2 performs stricter checks than 1.
+//
+//    _REENTRANT, _THREAD_SAFE
+// 			Obsolete; equivalent to _POSIX_C_SOURCE=199506L.
+//
+//    The `-ansi' switch to the GNU C compiler, and standards conformance
+//    options such as `-std=c99', define __STRICT_ANSI__.  If none of
+//    these are defined, or if _DEFAULT_SOURCE is defined, the default is
+//    to have _POSIX_SOURCE set to one and _POSIX_C_SOURCE set to
+//    200809L, as well as enabling miscellaneous functions from BSD and
+//    SVID.  If more than one of these are defined, they accumulate.  For
+//    example __STRICT_ANSI__, _POSIX_SOURCE and _POSIX_C_SOURCE together
+//    give you ISO C, 1003.1, and 1003.2, but nothing else.
+//
+//    These are defined by this file and are used by the
+//    header files to decide what to declare or define:
+//
+//    __GLIBC_USE (F)	Define things from feature set F.  This is defined
+// 			to 1 or 0; the subsequent macros are either defined
+// 			or undefined, and those tests should be moved to
+// 			__GLIBC_USE.
+//    __USE_ISOC11		Define ISO C11 things.
+//    __USE_ISOC99		Define ISO C99 things.
+//    __USE_ISOC95		Define ISO C90 AMD1 (C95) things.
+//    __USE_ISOCXX11	Define ISO C++11 things.
+//    __USE_POSIX		Define IEEE Std 1003.1 things.
+//    __USE_POSIX2		Define IEEE Std 1003.2 things.
+//    __USE_POSIX199309	Define IEEE Std 1003.1, and .1b things.
+//    __USE_POSIX199506	Define IEEE Std 1003.1, .1b, .1c and .1i things.
+//    __USE_XOPEN		Define XPG things.
+//    __USE_XOPEN_EXTENDED	Define X/Open Unix things.
+//    __USE_UNIX98		Define Single Unix V2 things.
+//    __USE_XOPEN2K        Define XPG6 things.
+//    __USE_XOPEN2KXSI     Define XPG6 XSI things.
+//    __USE_XOPEN2K8       Define XPG7 things.
+//    __USE_XOPEN2K8XSI    Define XPG7 XSI things.
+//    __USE_LARGEFILE	Define correct standard I/O things.
+//    __USE_LARGEFILE64	Define LFS things with separate names.
+//    __USE_FILE_OFFSET64	Define 64bit interface as default.
+//    __USE_MISC		Define things from 4.3BSD or System V Unix.
+//    __USE_ATFILE		Define *at interfaces and AT_* constants for them.
+//    __USE_GNU		Define GNU extensions.
+//    __USE_FORTIFY_LEVEL	Additional security measures used, according to level.
+//
+//    The macros `__GNU_LIBRARY__', `__GLIBC__', and `__GLIBC_MINOR__' are
+//    defined by this file unconditionally.  `__GNU_LIBRARY__' is provided
+//    only for compatibility.  All new code should use the other symbols
+//    to test for features.
+//
+//    All macros listed above as possibly being defined by this file are
+//    explicitly undefined if they are not explicitly defined.
+//    Feature-test macros that are not defined by the user or compiler
+//    but are implied by the other feature-test macros defined (or by the
+//    lack of any definitions) are defined by the file.
+//
+//    ISO C feature test macros depend on the definition of the macro
+//    when an affected header is included, not when the first system
+//    header is included, and so they are handled in
+//    <bits/libc-header-start.h>, which does not have a multiple include
+//    guard.  Feature test macros that can be handled from the first
+//    system header included are handled here.
+
+// Undefine everything, so we get a clean slate.
+
+// Suppress kernel-name space pollution unless user expressedly asks
+//    for it.
+
+// Convenience macro to test the version of gcc.
+//    Use like this:
+//    #if __GNUC_PREREQ (2,8)
+//    ... code requiring gcc 2.8 or later ...
+//    #endif
+//    Note: only works for GCC 2.0 and later, because __GNUC_MINOR__ was
+//    added in 2.0.
+
+// Similarly for clang.  Features added to GCC after version 4.2 may
+//    or may not also be available in clang, and clang's definitions of
+//    __GNUC(_MINOR)__ are fixed at 4 and 2 respectively.  Not all such
+//    features can be queried via __has_extension/__has_feature.
+
+// Whether to use feature set F.
+
+// _BSD_SOURCE and _SVID_SOURCE are deprecated aliases for
+//    _DEFAULT_SOURCE.  If _DEFAULT_SOURCE is present we do not
+//    issue a warning; the expectation is that the source is being
+//    transitioned to use the new macro.
+
+// If _GNU_SOURCE was defined by the user, turn on all the other features.
+
+// If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined,
+//    define _DEFAULT_SOURCE.
+
+// This is to enable the ISO C2X extension.
+
+// This is to enable the ISO C11 extension.
+
+// This is to enable the ISO C99 extension.
+
+// This is to enable the ISO C90 Amendment 1:1995 extension.
+
+// If none of the ANSI/POSIX macros are defined, or if _DEFAULT_SOURCE
+//    is defined, use POSIX.1-2008 (or another version depending on
+//    _XOPEN_SOURCE).
+
+// Some C libraries once required _REENTRANT and/or _THREAD_SAFE to be
+//    defined in all multithreaded code.  GNU libc has not required this
+//    for many years.  We now treat them as compatibility synonyms for
+//    _POSIX_C_SOURCE=199506L, which is the earliest level of POSIX with
+//    comprehensive support for multithreaded code.  Using them never
+//    lowers the selected level of POSIX conformance, only raises it.
+
+// The function 'gets' existed in C89, but is impossible to use
+//    safely.  It has been removed from ISO C11 and ISO C++14.  Note: for
+//    compatibility with various implementations of <cstdio>, this test
+//    must consider only the value of __cplusplus when compiling C++.
+
+// GNU formerly extended the scanf functions with modified format
+//    specifiers %as, %aS, and %a[...] that allocate a buffer for the
+//    input using malloc.  This extension conflicts with ISO C99, which
+//    defines %a as a standalone format specifier that reads a floating-
+//    point number; moreover, POSIX.1-2008 provides the same feature
+//    using the modifier letter 'm' instead (%ms, %mS, %m[...]).
+//
+//    We now follow C99 unless GNU extensions are active and the compiler
+//    is specifically in C89 or C++98 mode (strict or not).  For
+//    instance, with GCC, -std=gnu11 will have C99-compliant scanf with
+//    or without -D_GNU_SOURCE, but -std=c89 -D_GNU_SOURCE will have the
+//    old extension.
+
+// Get definitions of __STDC_* predefined macros, if the compiler has
+//    not preincluded this header automatically.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// This macro indicates that the installed library is the GNU C Library.
+//    For historic reasons the value now is 6 and this will stay from now
+//    on.  The use of this variable is deprecated.  Use __GLIBC__ and
+//    __GLIBC_MINOR__ now (see below) when you want to test for a specific
+//    GNU C library version and use the values in <gnu/lib-names.h> to get
+//    the sonames of the shared libraries.
+
+// Major and minor version number of the GNU C library package.  Use
+//    these macros to test for features in specific releases.
+
+// This is here only because every header file already includes this one.
+// Copyright (C) 1992-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// We are almost always included from features.h.
+
+// The GNU libc does not support any K&R compilers or the traditional mode
+//    of ISO C compilers anymore.  Check for some of the combinations not
+//    anymore supported.
+
+// Some user header file might have defined this before.
+
+// All functions, except those with callbacks or those that
+//    synchronize memory, are leaf functions.
+
+// GCC can always grok prototypes.  For C++ programs we add throw()
+//    to help it optimize the function calls.  But this works only with
+//    gcc 2.8.x and egcs.  For gcc 3.2 and up we even mark C functions
+//    as non-throwing using a function attribute since programs can use
+//    the -fexceptions options for C code as well.
+
+// Compilers that are not clang may object to
+//        #if defined __clang__ && __has_extension(...)
+//    even though they do not need to evaluate the right-hand side of the &&.
+
+// These two macros are not used in glibc anymore.  They are kept here
+//    only because some other projects expect the macros to be defined.
+
+// For these things, GCC behaves the ANSI way normally,
+//    and the non-ANSI way under -traditional.
+
+// This is not a typedef so `const __ptr_t' does the right thing.
+
+// C++ needs to know that types and declarations are C, not C++.
+
+// Fortify support.
+
+// Support for flexible arrays.
+//    Headers that should use flexible arrays only if they're "real"
+//    (e.g. only if they won't affect sizeof()) should test
+//    #if __glibc_c99_flexarr_available.
+
+// __asm__ ("xyz") is used throughout the headers to rename functions
+//    at the assembly language level.  This is wrapped by the __REDIRECT
+//    macro, in order to support compilers that can do this some other
+//    way.  When compilers don't support asm-names at all, we have to do
+//    preprocessor tricks instead (which don't have exactly the right
+//    semantics, but it's the best we can do).
+//
+//    Example:
+//    int __REDIRECT(setpgrp, (__pid_t pid, __pid_t pgrp), setpgid);
+
+//
+// #elif __SOME_OTHER_COMPILER__
+//
+// # define __REDIRECT(name, proto, alias) name proto; 	_Pragma("let " #name " = " #alias)
+
+// GCC has various useful declarations that can be made with the
+//    `__attribute__' syntax.  All of the ways we use this do fine if
+//    they are omitted for compilers that don't understand it.
+
+// At some point during the gcc 2.96 development the `malloc' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// Tell the compiler which arguments to an allocation function
+//    indicate the size of the allocation.
+
+// At some point during the gcc 2.96 development the `pure' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// This declaration tells the compiler that the value is constant.
+
+// At some point during the gcc 3.1 development the `used' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// Since version 3.2, gcc allows marking deprecated functions.
+
+// Since version 4.5, gcc also allows one to specify the message printed
+//    when a deprecated function is used.  clang claims to be gcc 4.2, but
+//    may also support this feature.
+
+// At some point during the gcc 2.8 development the `format_arg' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+//    If several `format_arg' attributes are given for the same function, in
+//    gcc-3.0 and older, all but the last one are ignored.  In newer gccs,
+//    all designated arguments are considered.
+
+// At some point during the gcc 2.97 development the `strfmon' format
+//    attribute for functions was introduced.  We don't want to use it
+//    unconditionally (although this would be possible) since it
+//    generates warnings.
+
+// The nonull function attribute allows to mark pointer parameters which
+//    must not be NULL.
+
+// If fortification mode, we warn about unused results of certain
+//    function calls which can lead to problems.
+
+// Forces a function to be always inlined.
+// The Linux kernel defines __always_inline in stddef.h (283d7573), and
+//    it conflicts with this definition.  Therefore undefine it first to
+//    allow either header to be included first.
+
+// Associate error messages with the source location of the call site rather
+//    than with the source location inside the function.
+
+// GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99
+//    inline semantics, unless -fgnu89-inline is used.  Using __GNUC_STDC_INLINE__
+//    or __GNUC_GNU_INLINE is not a good enough check for gcc because gcc versions
+//    older than 4.3 may define these macros and still not guarantee GNU inlining
+//    semantics.
+//
+//    clang++ identifies itself as gcc-4.2, but has support for GNU inlining
+//    semantics, that can be checked for by using the __GNUC_STDC_INLINE_ and
+//    __GNUC_GNU_INLINE__ macro definitions.
+
+// GCC 4.3 and above allow passing all anonymous arguments of an
+//    __extern_always_inline function to some other vararg function.
+
+// It is possible to compile containing GCC extensions even if GCC is
+//    run in pedantic mode if the uses are carefully marked using the
+//    `__extension__' keyword.  But this is not generally available before
+//    version 2.8.
+
+// __restrict is known in EGCS 1.2 and above.
+
+// ISO C99 also allows to declare arrays as non-overlapping.  The syntax is
+//      array_name[restrict]
+//    GCC 3.1 supports this.
+
+// Describes a char array whose address can safely be passed as the first
+//    argument to strncpy and strncat, as the char array is not necessarily
+//    a NUL-terminated string.
+
+// Undefine (also defined in libc-symbols.h).
+// Copies attributes from the declaration or type referenced by
+//    the argument.
+
+// Determine the wordsize from the preprocessor defines.
+
+// Both x86-64 and x32 use the 64-bit system call interface.
+// Properties of long double type.  ldbl-96 version.
+//    Copyright (C) 2016-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License  published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// long double is distinct from double, so there is nothing to
+//    define here.
+
+// __glibc_macro_warning (MESSAGE) issues warning MESSAGE.  This is
+//    intended for use in preprocessor macros.
+//
+//    Note: MESSAGE must be a _single_ string; concatenation of string
+//    literals is not supported.
+
+// Generic selection (ISO C11) is a C-only feature, available in GCC
+//    since version 4.9.  Previous versions do not provide generic
+//    selection, even though they might set __STDC_VERSION__ to 201112L,
+//    when in -std=c11 mode.  Thus, we must check for !defined __GNUC__
+//    when testing __STDC_VERSION__ for generic selection support.
+//    On the other hand, Clang also defines __GNUC__, so a clang-specific
+//    check is required to enable the use of generic selection.
+
+// If we don't have __REDIRECT, prototypes will be missing if
+//    __USE_FILE_OFFSET64 but not __USE_LARGEFILE[64].
+
+// Decide whether we can define 'extern inline' functions in headers.
+
+// This is here only because every header file already includes this one.
+//    Get the definitions of all the appropriate `__stub_FUNCTION' symbols.
+//    <gnu/stubs.h> contains `#define __stub_FUNCTION' when FUNCTION is a stub
+//    that will always return failure (and set errno to ENOSYS).
+// This file is automatically generated.
+//    This file selects the right generated file of `__stub_FUNCTION' macros
+//    based on the architecture being compiled for.
+
+// This file is automatically generated.
+//    It defines a symbol `__stub_FUNCTION' for each function
+//    in the C library which is a stub, meaning it will fail
+//    every time called, usually setting errno to ENOSYS.
+
+// We need `pid_t'.
+// bits/types.h -- definitions of __*_t types underlying *_t types.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Never include this file directly; use <sys/types.h> instead.
+
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Determine the wordsize from the preprocessor defines.
+
+// Both x86-64 and x32 use the 64-bit system call interface.
+// Bit size of the time_t type at glibc build time, x86-64 and x32 case.
+//    Copyright (C) 2018-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// For others, time size is word size.
+
+// Convenience types.
+type X__u_char = uint8   /* types.h:31:23 */
+type X__u_short = uint16 /* types.h:32:28 */
+type X__u_int = uint32   /* types.h:33:22 */
+type X__u_long = uint64  /* types.h:34:27 */
+
+// Fixed-size types, underlying types depend on word size and compiler.
+type X__int8_t = int8     /* types.h:37:21 */
+type X__uint8_t = uint8   /* types.h:38:23 */
+type X__int16_t = int16   /* types.h:39:26 */
+type X__uint16_t = uint16 /* types.h:40:28 */
+type X__int32_t = int32   /* types.h:41:20 */
+type X__uint32_t = uint32 /* types.h:42:22 */
+type X__int64_t = int64   /* types.h:44:25 */
+type X__uint64_t = uint64 /* types.h:45:27 */
+
+// Smallest types with at least a given width.
+type X__int_least8_t = X__int8_t     /* types.h:52:18 */
+type X__uint_least8_t = X__uint8_t   /* types.h:53:19 */
+type X__int_least16_t = X__int16_t   /* types.h:54:19 */
+type X__uint_least16_t = X__uint16_t /* types.h:55:20 */
+type X__int_least32_t = X__int32_t   /* types.h:56:19 */
+type X__uint_least32_t = X__uint32_t /* types.h:57:20 */
+type X__int_least64_t = X__int64_t   /* types.h:58:19 */
+type X__uint_least64_t = X__uint64_t /* types.h:59:20 */
+
+// quad_t is also 64 bits.
+type X__quad_t = int64    /* types.h:63:18 */
+type X__u_quad_t = uint64 /* types.h:64:27 */
+
+// Largest integral types.
+type X__intmax_t = int64   /* types.h:72:18 */
+type X__uintmax_t = uint64 /* types.h:73:27 */
+
+// The machine-dependent file <bits/typesizes.h> defines __*_T_TYPE
+//    macros for each of the OS types we define below.  The definitions
+//    of those macros must use the following macros for underlying types.
+//    We define __S<SIZE>_TYPE and __U<SIZE>_TYPE for the signed and unsigned
+//    variants of each of the following integer types on this machine.
+//
+// 	16		-- "natural" 16-bit type (always short)
+// 	32		-- "natural" 32-bit type (always int)
+// 	64		-- "natural" 64-bit type (long or long long)
+// 	LONG32		-- 32-bit type, traditionally long
+// 	QUAD		-- 64-bit type, traditionally long long
+// 	WORD		-- natural type of __WORDSIZE bits (int or long)
+// 	LONGWORD	-- type of __WORDSIZE bits, traditionally long
+//
+//    We distinguish WORD/LONGWORD, 32/LONG32, and 64/QUAD so that the
+//    conventional uses of `long' or `long long' type modifiers match the
+//    types we define, even when a less-adorned type would be the same size.
+//    This matters for (somewhat) portably writing printf/scanf formats for
+//    these types, where using the appropriate l or ll format modifiers can
+//    make the typedefs and the formats match up across all GNU platforms.  If
+//    we used `long' when it's 64 bits where `long long' is expected, then the
+//    compiler would warn about the formats not matching the argument types,
+//    and the programmer changing them to shut up the compiler would break the
+//    program's portability.
+//
+//    Here we assume what is presently the case in all the GCC configurations
+//    we support: long long is always 64 bits, long is always word/address size,
+//    and int is always 32 bits.
+
+// No need to mark the typedef with __extension__.
+// bits/typesizes.h -- underlying types for *_t.  Linux/x86-64 version.
+//    Copyright (C) 2012-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// See <bits/types.h> for the meaning of these macros.  This file exists so
+//    that <bits/types.h> need not vary across different GNU platforms.
+
+// X32 kernel interface is 64-bit.
+
+// Tell the libc code that off_t and off64_t are actually the same type
+//    for all ABI purposes, even if possibly expressed as different base types
+//    for C type-checking purposes.
+
+// Same for ino_t and ino64_t.
+
+// And for __rlim_t and __rlim64_t.
+
+// And for fsblkcnt_t, fsblkcnt64_t, fsfilcnt_t and fsfilcnt64_t.
+
+// Number of descriptors that can fit in an `fd_set'.
+
+// bits/time64.h -- underlying types for __time64_t.  Generic version.
+//    Copyright (C) 2018-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Define __TIME64_T_TYPE so that it is always a 64-bit type.
+
+// If we already have 64-bit time type then use it.
+
+type X__dev_t = uint64                     /* types.h:145:25 */ // Type of device numbers.
+type X__uid_t = uint32                     /* types.h:146:25 */ // Type of user identifications.
+type X__gid_t = uint32                     /* types.h:147:25 */ // Type of group identifications.
+type X__ino_t = uint64                     /* types.h:148:25 */ // Type of file serial numbers.
+type X__ino64_t = uint64                   /* types.h:149:27 */ // Type of file serial numbers (LFS).
+type X__mode_t = uint32                    /* types.h:150:26 */ // Type of file attribute bitmasks.
+type X__nlink_t = uint64                   /* types.h:151:27 */ // Type of file link counts.
+type X__off_t = int64                      /* types.h:152:25 */ // Type of file sizes and offsets.
+type X__off64_t = int64                    /* types.h:153:27 */ // Type of file sizes and offsets (LFS).
+type X__pid_t = int32                      /* types.h:154:25 */ // Type of process identifications.
+type X__fsid_t = struct{ F__val [2]int32 } /* types.h:155:26 */ // Type of file system IDs.
+type X__clock_t = int64                    /* types.h:156:27 */ // Type of CPU usage counts.
+type X__rlim_t = uint64                    /* types.h:157:26 */ // Type for resource measurement.
+type X__rlim64_t = uint64                  /* types.h:158:28 */ // Type for resource measurement (LFS).
+type X__id_t = uint32                      /* types.h:159:24 */ // General type for IDs.
+type X__time_t = int64                     /* types.h:160:26 */ // Seconds since the Epoch.
+type X__useconds_t = uint32                /* types.h:161:30 */ // Count of microseconds.
+type X__suseconds_t = int64                /* types.h:162:31 */ // Signed count of microseconds.
+
+type X__daddr_t = int32 /* types.h:164:27 */ // The type of a disk address.
+type X__key_t = int32   /* types.h:165:25 */ // Type of an IPC key.
+
+// Clock ID used in clock and timer functions.
+type X__clockid_t = int32 /* types.h:168:29 */
+
+// Timer ID returned by `timer_create'.
+type X__timer_t = uintptr /* types.h:171:12 */
+
+// Type to represent block size.
+type X__blksize_t = int64 /* types.h:174:29 */
+
+// Types from the Large File Support interface.
+
+// Type to count number of disk blocks.
+type X__blkcnt_t = int64   /* types.h:179:28 */
+type X__blkcnt64_t = int64 /* types.h:180:30 */
+
+// Type to count file system blocks.
+type X__fsblkcnt_t = uint64   /* types.h:183:30 */
+type X__fsblkcnt64_t = uint64 /* types.h:184:32 */
+
+// Type to count file system nodes.
+type X__fsfilcnt_t = uint64   /* types.h:187:30 */
+type X__fsfilcnt64_t = uint64 /* types.h:188:32 */
+
+// Type of miscellaneous file system fields.
+type X__fsword_t = int64 /* types.h:191:28 */
+
+type X__ssize_t = int64 /* types.h:193:27 */ // Type of a byte count, or error.
+
+// Signed long type used in system calls.
+type X__syscall_slong_t = int64 /* types.h:196:33 */
+// Unsigned long type used in system calls.
+type X__syscall_ulong_t = uint64 /* types.h:198:33 */
+
+// These few don't really vary by system, they always correspond
+//
+//	to one of the other defined types.
+type X__loff_t = X__off64_t /* types.h:202:19 */ // Type of file sizes and offsets (LFS).
+type X__caddr_t = uintptr   /* types.h:203:14 */
+
+// Duplicates info from stdint.h but this is used in unistd.h.
+type X__intptr_t = int64 /* types.h:206:25 */
+
+// Duplicate info from sys/socket.h.
+type X__socklen_t = uint32 /* types.h:209:23 */
+
+// C99: An integer type that can be accessed as an atomic entity,
+//
+//	even in the presence of asynchronous interrupts.
+//	It is not currently necessary for this to be machine-specific.
+type X__sig_atomic_t = int32 /* types.h:214:13 */
+
+// Seconds since the Epoch, visible to user code when time_t is too
+//    narrow only for consistency with the old way of widening too-narrow
+//    types.  User code should never use __time64_t.
+
+type Pid_t = X__pid_t /* termios.h:30:17 */
+
+// Get the system-dependent definitions of `struct termios', `tcflag_t',
+//    `cc_t', `speed_t', and all the macros specifying the flag bits.
+// termios type and macro definitions.  Linux version.
+//    Copyright (C) 1993-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+type Cc_t = uint8      /* termios.h:23:23 */
+type Speed_t = uint32  /* termios.h:24:22 */
+type Tcflag_t = uint32 /* termios.h:25:22 */
+
+// struct termios definition.  Linux/generic version.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+type Termios = struct {
+	Fc_iflag     Tcflag_t
+	Fc_oflag     Tcflag_t
+	Fc_cflag     Tcflag_t
+	Fc_lflag     Tcflag_t
+	Fc_line      Cc_t
+	Fc_cc        [32]Cc_t
+	F__ccgo_pad1 [3]byte
+	Fc_ispeed    Speed_t
+	Fc_ospeed    Speed_t
+} /* termios-struct.h:24:1 */
+
+// -
+// Copyright (c) 1982, 1986, 1993
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttydefaults.h	8.4 (Berkeley) 1/21/94
+
+// System wide defaults for terminal state.  Linux version.
+
+// Defaults on "first" open.
+
+// Control Character Defaults
+// compat
+
+// PROTECTED INCLUSION ENDS HERE
+
+// #define TTYDEFCHARS to include an array of default control characters.
+
+var _ int8 /* gen.c:2:13: */
diff --git a/vendor/modernc.org/libc/termios/termios_linux_ppc64le.go b/vendor/modernc.org/libc/termios/termios_linux_ppc64le.go
new file mode 100644
index 0000000..1a03ee1
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/termios_linux_ppc64le.go
@@ -0,0 +1,1238 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_linux_ppc64le.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+import (
+	"math"
+	"reflect"
+	"sync/atomic"
+	"unsafe"
+)
+
+var _ = math.Pi
+var _ reflect.Kind
+var _ atomic.Value
+var _ unsafe.Pointer
+
+const (
+	B0                             = 0000000      // termios.h:33:1:
+	B1000000                       = 00027        // termios-baud.h:37:1:
+	B110                           = 0000003      // termios.h:36:1:
+	B115200                        = 00021        // termios-baud.h:31:1:
+	B1152000                       = 00030        // termios-baud.h:38:1:
+	B1200                          = 0000011      // termios.h:42:1:
+	B134                           = 0000004      // termios.h:37:1:
+	B150                           = 0000005      // termios.h:38:1:
+	B1500000                       = 00031        // termios-baud.h:39:1:
+	B1800                          = 0000012      // termios.h:43:1:
+	B19200                         = 0000016      // termios.h:47:1:
+	B200                           = 0000006      // termios.h:39:1:
+	B2000000                       = 00032        // termios-baud.h:40:1:
+	B230400                        = 00022        // termios-baud.h:32:1:
+	B2400                          = 0000013      // termios.h:44:1:
+	B2500000                       = 00033        // termios-baud.h:41:1:
+	B300                           = 0000007      // termios.h:40:1:
+	B3000000                       = 00034        // termios-baud.h:42:1:
+	B3500000                       = 00035        // termios-baud.h:43:1:
+	B38400                         = 0000017      // termios.h:48:1:
+	B4000000                       = 00036        // termios-baud.h:44:1:
+	B460800                        = 00023        // termios-baud.h:33:1:
+	B4800                          = 0000014      // termios.h:45:1:
+	B50                            = 0000001      // termios.h:34:1:
+	B500000                        = 00024        // termios-baud.h:34:1:
+	B57600                         = 00020        // termios-baud.h:30:1:
+	B576000                        = 00025        // termios-baud.h:35:1:
+	B600                           = 0000010      // termios.h:41:1:
+	B75                            = 0000002      // termios.h:35:1:
+	B921600                        = 00026        // termios-baud.h:36:1:
+	B9600                          = 0000015      // termios.h:46:1:
+	BRKINT                         = 0000002      // termios-c_iflag.h:25:1:
+	BS0                            = 00000000     // termios-c_oflag.h:56:1:
+	BS1                            = 00100000     // termios-c_oflag.h:57:1:
+	BSDLY                          = 00100000     // termios-c_oflag.h:55:1:
+	CBAUD                          = 0000377      // termios-baud.h:24:1:
+	CBAUDEX                        = 0000020      // termios-baud.h:25:1:
+	CBRK                           = 0            // ttydefaults.h:83:1:
+	CDISCARD                       = 15           // ttydefaults.h:78:1:
+	CDSUSP                         = 25           // ttydefaults.h:74:1:
+	CEOF                           = 4            // ttydefaults.h:56:1:
+	CEOL                           = 0            // ttydefaults.h:60:1:
+	CEOT                           = 4            // ttydefaults.h:81:1:
+	CERASE                         = 0177         // ttydefaults.h:62:1:
+	CFLUSH                         = 15           // ttydefaults.h:85:1:
+	CINTR                          = 3            // ttydefaults.h:63:1:
+	CKILL                          = 21           // ttydefaults.h:69:1:
+	CLNEXT                         = 22           // ttydefaults.h:77:1:
+	CLOCAL                         = 00100000     // termios-c_cflag.h:35:1:
+	CMIN                           = 1            // ttydefaults.h:70:1:
+	CMSPAR                         = 010000000000 // termios-baud.h:26:1:
+	CQUIT                          = 034          // ttydefaults.h:71:1:
+	CR0                            = 00000000     // termios-c_oflag.h:48:1:
+	CR1                            = 00010000     // termios-c_oflag.h:49:1:
+	CR2                            = 00020000     // termios-c_oflag.h:50:1:
+	CR3                            = 00030000     // termios-c_oflag.h:51:1:
+	CRDLY                          = 00030000     // termios-c_oflag.h:47:1:
+	CREAD                          = 00004000     // termios-c_cflag.h:30:1:
+	CREPRINT                       = 18           // ttydefaults.h:80:1:
+	CRPRNT                         = 18           // ttydefaults.h:84:1:
+	CRTSCTS                        = 020000000000 // termios-baud.h:27:1:
+	CS5                            = 00000000     // termios-c_cflag.h:24:1:
+	CS6                            = 00000400     // termios-c_cflag.h:25:1:
+	CS7                            = 00001000     // termios-c_cflag.h:26:1:
+	CS8                            = 00001400     // termios-c_cflag.h:27:1:
+	CSIZE                          = 00001400     // termios-c_cflag.h:23:1:
+	CSTART                         = 17           // ttydefaults.h:75:1:
+	CSTATUS                        = 0            // ttydefaults.h:67:1:
+	CSTOP                          = 19           // ttydefaults.h:76:1:
+	CSTOPB                         = 00002000     // termios-c_cflag.h:29:1:
+	CSUSP                          = 26           // ttydefaults.h:72:1:
+	CTIME                          = 0            // ttydefaults.h:73:1:
+	CWERASE                        = 23           // ttydefaults.h:79:1:
+	ECHO                           = 0x00000008   // termios-c_lflag.h:29:1:
+	ECHOCTL                        = 0x00000040   // termios-c_lflag.h:36:1:
+	ECHOE                          = 0x00000002   // termios-c_lflag.h:30:1:
+	ECHOK                          = 0x00000004   // termios-c_lflag.h:31:1:
+	ECHOKE                         = 0x00000001   // termios-c_lflag.h:38:1:
+	ECHONL                         = 0x00000010   // termios-c_lflag.h:32:1:
+	ECHOPRT                        = 0x00000020   // termios-c_lflag.h:37:1:
+	EXTA                           = 14           // termios.h:50:1:
+	EXTB                           = 15           // termios.h:51:1:
+	EXTPROC                        = 0x10000000   // termios-c_lflag.h:44:1:
+	FF0                            = 00000000     // termios-c_oflag.h:53:1:
+	FF1                            = 00040000     // termios-c_oflag.h:54:1:
+	FFDLY                          = 00040000     // termios-c_oflag.h:52:1:
+	FLUSHO                         = 0x00800000   // termios-c_lflag.h:39:1:
+	HUPCL                          = 00040000     // termios-c_cflag.h:33:1:
+	ICANON                         = 0x00000100   // termios-c_lflag.h:25:1:
+	ICRNL                          = 0000400      // termios-c_iflag.h:32:1:
+	IEXTEN                         = 0x00000400   // termios-c_lflag.h:42:1:
+	IGNBRK                         = 0000001      // termios-c_iflag.h:24:1:
+	IGNCR                          = 0000200      // termios-c_iflag.h:31:1:
+	IGNPAR                         = 0000004      // termios-c_iflag.h:26:1:
+	IMAXBEL                        = 0020000      // termios-c_iflag.h:37:1:
+	INLCR                          = 0000100      // termios-c_iflag.h:30:1:
+	INPCK                          = 0000020      // termios-c_iflag.h:28:1:
+	ISIG                           = 0x00000080   // termios-c_lflag.h:24:1:
+	ISTRIP                         = 0000040      // termios-c_iflag.h:29:1:
+	IUCLC                          = 0010000      // termios-c_iflag.h:36:1:
+	IUTF8                          = 0040000      // termios-c_iflag.h:38:1:
+	IXANY                          = 0004000      // termios-c_iflag.h:35:1:
+	IXOFF                          = 0002000      // termios-c_iflag.h:34:1:
+	IXON                           = 0001000      // termios-c_iflag.h:33:1:
+	NCCS                           = 32           // termios-struct.h:23:1:
+	NL0                            = 00000000     // termios-c_oflag.h:36:1:
+	NL1                            = 00000400     // termios-c_oflag.h:37:1:
+	NL2                            = 00001000     // termios-c_oflag.h:39:1:
+	NL3                            = 00001400     // termios-c_oflag.h:40:1:
+	NLDLY                          = 00001400     // termios-c_oflag.h:35:1:
+	NOFLSH                         = 0x80000000   // termios-c_lflag.h:33:1:
+	OCRNL                          = 0000010      // termios-c_oflag.h:28:1:
+	OFDEL                          = 00000200     // termios-c_oflag.h:33:1:
+	OFILL                          = 00000100     // termios-c_oflag.h:32:1:
+	OLCUC                          = 0000004      // termios-c_oflag.h:26:1:
+	ONLCR                          = 0000002      // termios-c_oflag.h:25:1:
+	ONLRET                         = 0000040      // termios-c_oflag.h:30:1:
+	ONOCR                          = 0000020      // termios-c_oflag.h:29:1:
+	OPOST                          = 0000001      // termios-c_oflag.h:24:1:
+	PARENB                         = 00010000     // termios-c_cflag.h:31:1:
+	PARMRK                         = 0000010      // termios-c_iflag.h:27:1:
+	PARODD                         = 00020000     // termios-c_cflag.h:32:1:
+	PENDIN                         = 0x20000000   // termios-c_lflag.h:40:1:
+	TAB0                           = 00000000     // termios-c_oflag.h:43:1:
+	TAB1                           = 00002000     // termios-c_oflag.h:44:1:
+	TAB2                           = 00004000     // termios-c_oflag.h:45:1:
+	TAB3                           = 00006000     // termios-c_oflag.h:46:1:
+	TABDLY                         = 00006000     // termios-c_oflag.h:42:1:
+	TCIFLUSH                       = 0            // termios.h:70:1:
+	TCIOFF                         = 2            // termios.h:66:1:
+	TCIOFLUSH                      = 2            // termios.h:72:1:
+	TCION                          = 3            // termios.h:67:1:
+	TCOFLUSH                       = 1            // termios.h:71:1:
+	TCOOFF                         = 0            // termios.h:64:1:
+	TCOON                          = 1            // termios.h:65:1:
+	TCSADRAIN                      = 1            // termios-tcflow.h:25:1:
+	TCSAFLUSH                      = 2            // termios-tcflow.h:26:1:
+	TCSANOW                        = 0            // termios-tcflow.h:24:1:
+	TIOCPKT_DATA                   = 0            // termios-misc.h:52:1:
+	TIOCPKT_DOSTOP                 = 32           // termios-misc.h:58:1:
+	TIOCPKT_FLUSHREAD              = 1            // termios-misc.h:53:1:
+	TIOCPKT_FLUSHWRITE             = 2            // termios-misc.h:54:1:
+	TIOCPKT_NOSTOP                 = 16           // termios-misc.h:57:1:
+	TIOCPKT_START                  = 8            // termios-misc.h:56:1:
+	TIOCPKT_STOP                   = 4            // termios-misc.h:55:1:
+	TIOCSER_TEMT                   = 0x01         // termios.h:60:1:
+	TOSTOP                         = 0x00400000   // termios-c_lflag.h:34:1:
+	TTYDEF_CFLAG                   = 23040        // ttydefaults.h:49:1:
+	TTYDEF_IFLAG                   = 11042        // ttydefaults.h:46:1:
+	TTYDEF_LFLAG                   = 1483         // ttydefaults.h:48:1:
+	TTYDEF_OFLAG                   = 3075         // ttydefaults.h:47:1:
+	TTYDEF_SPEED                   = 13           // ttydefaults.h:50:1:
+	VDISCARD                       = 16           // termios-c_cc.h:41:1:
+	VEOF                           = 4            // termios-c_cc.h:28:1:
+	VEOL                           = 6            // termios-c_cc.h:30:1:
+	VEOL2                          = 8            // termios-c_cc.h:32:1:
+	VERASE                         = 2            // termios-c_cc.h:26:1:
+	VINTR                          = 0            // termios-c_cc.h:24:1:
+	VKILL                          = 3            // termios-c_cc.h:27:1:
+	VLNEXT                         = 15           // termios-c_cc.h:40:1:
+	VMIN                           = 5            // termios-c_cc.h:29:1:
+	VQUIT                          = 1            // termios-c_cc.h:25:1:
+	VREPRINT                       = 11           // termios-c_cc.h:36:1:
+	VSTART                         = 13           // termios-c_cc.h:38:1:
+	VSTOP                          = 14           // termios-c_cc.h:39:1:
+	VSUSP                          = 12           // termios-c_cc.h:37:1:
+	VSWTC                          = 9            // termios-c_cc.h:33:1:
+	VT0                            = 00000000     // termios-c_oflag.h:60:1:
+	VT1                            = 00200000     // termios-c_oflag.h:61:1:
+	VTDLY                          = 00200000     // termios-c_oflag.h:59:1:
+	VTIME                          = 7            // termios-c_cc.h:31:1:
+	VWERASE                        = 10           // termios-c_cc.h:35:1:
+	XCASE                          = 0x00004000   // termios-c_lflag.h:27:1:
+	XTABS                          = 00006000     // termios-c_oflag.h:64:1:
+	X_ARCH_PPC                     = 1            // <predefined>:198:1:
+	X_ARCH_PPC64                   = 1            // <predefined>:402:1:
+	X_ARCH_PPCGR                   = 1            // <predefined>:15:1:
+	X_ARCH_PPCSQ                   = 1            // <predefined>:43:1:
+	X_ARCH_PWR4                    = 1            // <predefined>:381:1:
+	X_ARCH_PWR5                    = 1            // <predefined>:90:1:
+	X_ARCH_PWR5X                   = 1            // <predefined>:137:1:
+	X_ARCH_PWR6                    = 1            // <predefined>:91:1:
+	X_ARCH_PWR7                    = 1            // <predefined>:92:1:
+	X_ARCH_PWR8                    = 1            // <predefined>:93:1:
+	X_ATFILE_SOURCE                = 1            // features.h:342:1:
+	X_BITS_TIME64_H                = 1            // time64.h:24:1:
+	X_BITS_TYPESIZES_H             = 1            // typesizes.h:24:1:
+	X_BITS_TYPES_H                 = 1            // types.h:24:1:
+	X_CALL_ELF                     = 2            // <predefined>:415:1:
+	X_CALL_LINUX                   = 1            // <predefined>:123:1:
+	X_DEFAULT_SOURCE               = 1            // features.h:227:1:
+	X_FEATURES_H                   = 1            // features.h:19:1:
+	X_FILE_OFFSET_BITS             = 64           // <builtin>:25:1:
+	X_HAVE_STRUCT_TERMIOS_C_ISPEED = 1            // termios-struct.h:34:1:
+	X_HAVE_STRUCT_TERMIOS_C_OSPEED = 1            // termios-struct.h:35:1:
+	X_LITTLE_ENDIAN                = 1            // <predefined>:37:1:
+	X_LP64                         = 1            // <predefined>:335:1:
+	X_POSIX_C_SOURCE               = 200809       // features.h:281:1:
+	X_POSIX_SOURCE                 = 1            // features.h:279:1:
+	X_STDC_PREDEF_H                = 1            // <predefined>:203:1:
+	X_SYS_CDEFS_H                  = 1            // cdefs.h:19:1:
+	X_SYS_TTYDEFAULTS_H_           = 0            // ttydefaults.h:41:1:
+	X_TERMIOS_H                    = 1            // termios.h:23:1:
+	X_VEOF                         = 4            // termios-misc.h:65:1:
+	X_VEOL                         = 6            // termios-misc.h:67:1:
+	X_VEOL2                        = 8            // termios-misc.h:69:1:
+	X_VERASE                       = 2            // termios-misc.h:63:1:
+	X_VINTR                        = 0            // termios-misc.h:61:1:
+	X_VKILL                        = 3            // termios-misc.h:64:1:
+	X_VMIN                         = 5            // termios-misc.h:66:1:
+	X_VQUIT                        = 1            // termios-misc.h:62:1:
+	X_VSWTC                        = 9            // termios-misc.h:70:1:
+	X_VTIME                        = 7            // termios-misc.h:68:1:
+	Linux                          = 1            // <predefined>:263:1:
+	Unix                           = 1            // <predefined>:222:1:
+)
+
+type Ptrdiff_t = int64 /* <builtin>:3:26 */
+
+type Size_t = uint64 /* <builtin>:9:23 */
+
+type Wchar_t = int32 /* <builtin>:15:24 */
+
+type X__int128_t = struct {
+	Flo int64
+	Fhi int64
+} /* <builtin>:21:43 */ // must match modernc.org/mathutil.Int128
+type X__uint128_t = struct {
+	Flo uint64
+	Fhi uint64
+} /* <builtin>:22:44 */ // must match modernc.org/mathutil.Int128
+
+type X__builtin_va_list = uintptr /* <builtin>:46:14 */
+type X__ieee128 = float64         /* <builtin>:47:21 */
+
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+//	POSIX Standard: 7.1-2 General Terminal Interface	<termios.h>
+
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// These are defined by the user (or the compiler)
+//    to specify the desired environment:
+//
+//    __STRICT_ANSI__	ISO Standard C.
+//    _ISOC99_SOURCE	Extensions to ISO C89 from ISO C99.
+//    _ISOC11_SOURCE	Extensions to ISO C99 from ISO C11.
+//    _ISOC2X_SOURCE	Extensions to ISO C99 from ISO C2X.
+//    __STDC_WANT_LIB_EXT2__
+// 			Extensions to ISO C99 from TR 27431-2:2010.
+//    __STDC_WANT_IEC_60559_BFP_EXT__
+// 			Extensions to ISO C11 from TS 18661-1:2014.
+//    __STDC_WANT_IEC_60559_FUNCS_EXT__
+// 			Extensions to ISO C11 from TS 18661-4:2015.
+//    __STDC_WANT_IEC_60559_TYPES_EXT__
+// 			Extensions to ISO C11 from TS 18661-3:2015.
+//
+//    _POSIX_SOURCE	IEEE Std 1003.1.
+//    _POSIX_C_SOURCE	If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2;
+// 			if >=199309L, add IEEE Std 1003.1b-1993;
+// 			if >=199506L, add IEEE Std 1003.1c-1995;
+// 			if >=200112L, all of IEEE 1003.1-2004
+// 			if >=200809L, all of IEEE 1003.1-2008
+//    _XOPEN_SOURCE	Includes POSIX and XPG things.  Set to 500 if
+// 			Single Unix conformance is wanted, to 600 for the
+// 			sixth revision, to 700 for the seventh revision.
+//    _XOPEN_SOURCE_EXTENDED XPG things and X/Open Unix extensions.
+//    _LARGEFILE_SOURCE	Some more functions for correct standard I/O.
+//    _LARGEFILE64_SOURCE	Additional functionality from LFS for large files.
+//    _FILE_OFFSET_BITS=N	Select default filesystem interface.
+//    _ATFILE_SOURCE	Additional *at interfaces.
+//    _GNU_SOURCE		All of the above, plus GNU extensions.
+//    _DEFAULT_SOURCE	The default set of features (taking precedence over
+// 			__STRICT_ANSI__).
+//
+//    _FORTIFY_SOURCE	Add security hardening to many library functions.
+// 			Set to 1 or 2; 2 performs stricter checks than 1.
+//
+//    _REENTRANT, _THREAD_SAFE
+// 			Obsolete; equivalent to _POSIX_C_SOURCE=199506L.
+//
+//    The `-ansi' switch to the GNU C compiler, and standards conformance
+//    options such as `-std=c99', define __STRICT_ANSI__.  If none of
+//    these are defined, or if _DEFAULT_SOURCE is defined, the default is
+//    to have _POSIX_SOURCE set to one and _POSIX_C_SOURCE set to
+//    200809L, as well as enabling miscellaneous functions from BSD and
+//    SVID.  If more than one of these are defined, they accumulate.  For
+//    example __STRICT_ANSI__, _POSIX_SOURCE and _POSIX_C_SOURCE together
+//    give you ISO C, 1003.1, and 1003.2, but nothing else.
+//
+//    These are defined by this file and are used by the
+//    header files to decide what to declare or define:
+//
+//    __GLIBC_USE (F)	Define things from feature set F.  This is defined
+// 			to 1 or 0; the subsequent macros are either defined
+// 			or undefined, and those tests should be moved to
+// 			__GLIBC_USE.
+//    __USE_ISOC11		Define ISO C11 things.
+//    __USE_ISOC99		Define ISO C99 things.
+//    __USE_ISOC95		Define ISO C90 AMD1 (C95) things.
+//    __USE_ISOCXX11	Define ISO C++11 things.
+//    __USE_POSIX		Define IEEE Std 1003.1 things.
+//    __USE_POSIX2		Define IEEE Std 1003.2 things.
+//    __USE_POSIX199309	Define IEEE Std 1003.1, and .1b things.
+//    __USE_POSIX199506	Define IEEE Std 1003.1, .1b, .1c and .1i things.
+//    __USE_XOPEN		Define XPG things.
+//    __USE_XOPEN_EXTENDED	Define X/Open Unix things.
+//    __USE_UNIX98		Define Single Unix V2 things.
+//    __USE_XOPEN2K        Define XPG6 things.
+//    __USE_XOPEN2KXSI     Define XPG6 XSI things.
+//    __USE_XOPEN2K8       Define XPG7 things.
+//    __USE_XOPEN2K8XSI    Define XPG7 XSI things.
+//    __USE_LARGEFILE	Define correct standard I/O things.
+//    __USE_LARGEFILE64	Define LFS things with separate names.
+//    __USE_FILE_OFFSET64	Define 64bit interface as default.
+//    __USE_MISC		Define things from 4.3BSD or System V Unix.
+//    __USE_ATFILE		Define *at interfaces and AT_* constants for them.
+//    __USE_GNU		Define GNU extensions.
+//    __USE_FORTIFY_LEVEL	Additional security measures used, according to level.
+//
+//    The macros `__GNU_LIBRARY__', `__GLIBC__', and `__GLIBC_MINOR__' are
+//    defined by this file unconditionally.  `__GNU_LIBRARY__' is provided
+//    only for compatibility.  All new code should use the other symbols
+//    to test for features.
+//
+//    All macros listed above as possibly being defined by this file are
+//    explicitly undefined if they are not explicitly defined.
+//    Feature-test macros that are not defined by the user or compiler
+//    but are implied by the other feature-test macros defined (or by the
+//    lack of any definitions) are defined by the file.
+//
+//    ISO C feature test macros depend on the definition of the macro
+//    when an affected header is included, not when the first system
+//    header is included, and so they are handled in
+//    <bits/libc-header-start.h>, which does not have a multiple include
+//    guard.  Feature test macros that can be handled from the first
+//    system header included are handled here.
+
+// Undefine everything, so we get a clean slate.
+
+// Suppress kernel-name space pollution unless user expressedly asks
+//    for it.
+
+// Convenience macro to test the version of gcc.
+//    Use like this:
+//    #if __GNUC_PREREQ (2,8)
+//    ... code requiring gcc 2.8 or later ...
+//    #endif
+//    Note: only works for GCC 2.0 and later, because __GNUC_MINOR__ was
+//    added in 2.0.
+
+// Similarly for clang.  Features added to GCC after version 4.2 may
+//    or may not also be available in clang, and clang's definitions of
+//    __GNUC(_MINOR)__ are fixed at 4 and 2 respectively.  Not all such
+//    features can be queried via __has_extension/__has_feature.
+
+// Whether to use feature set F.
+
+// _BSD_SOURCE and _SVID_SOURCE are deprecated aliases for
+//    _DEFAULT_SOURCE.  If _DEFAULT_SOURCE is present we do not
+//    issue a warning; the expectation is that the source is being
+//    transitioned to use the new macro.
+
+// If _GNU_SOURCE was defined by the user, turn on all the other features.
+
+// If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined,
+//    define _DEFAULT_SOURCE.
+
+// This is to enable the ISO C2X extension.
+
+// This is to enable the ISO C11 extension.
+
+// This is to enable the ISO C99 extension.
+
+// This is to enable the ISO C90 Amendment 1:1995 extension.
+
+// If none of the ANSI/POSIX macros are defined, or if _DEFAULT_SOURCE
+//    is defined, use POSIX.1-2008 (or another version depending on
+//    _XOPEN_SOURCE).
+
+// Some C libraries once required _REENTRANT and/or _THREAD_SAFE to be
+//    defined in all multithreaded code.  GNU libc has not required this
+//    for many years.  We now treat them as compatibility synonyms for
+//    _POSIX_C_SOURCE=199506L, which is the earliest level of POSIX with
+//    comprehensive support for multithreaded code.  Using them never
+//    lowers the selected level of POSIX conformance, only raises it.
+
+// The function 'gets' existed in C89, but is impossible to use
+//    safely.  It has been removed from ISO C11 and ISO C++14.  Note: for
+//    compatibility with various implementations of <cstdio>, this test
+//    must consider only the value of __cplusplus when compiling C++.
+
+// GNU formerly extended the scanf functions with modified format
+//    specifiers %as, %aS, and %a[...] that allocate a buffer for the
+//    input using malloc.  This extension conflicts with ISO C99, which
+//    defines %a as a standalone format specifier that reads a floating-
+//    point number; moreover, POSIX.1-2008 provides the same feature
+//    using the modifier letter 'm' instead (%ms, %mS, %m[...]).
+//
+//    We now follow C99 unless GNU extensions are active and the compiler
+//    is specifically in C89 or C++98 mode (strict or not).  For
+//    instance, with GCC, -std=gnu11 will have C99-compliant scanf with
+//    or without -D_GNU_SOURCE, but -std=c89 -D_GNU_SOURCE will have the
+//    old extension.
+
+// Get definitions of __STDC_* predefined macros, if the compiler has
+//    not preincluded this header automatically.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// This macro indicates that the installed library is the GNU C Library.
+//    For historic reasons the value now is 6 and this will stay from now
+//    on.  The use of this variable is deprecated.  Use __GLIBC__ and
+//    __GLIBC_MINOR__ now (see below) when you want to test for a specific
+//    GNU C library version and use the values in <gnu/lib-names.h> to get
+//    the sonames of the shared libraries.
+
+// Major and minor version number of the GNU C library package.  Use
+//    these macros to test for features in specific releases.
+
+// This is here only because every header file already includes this one.
+// Copyright (C) 1992-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// We are almost always included from features.h.
+
+// The GNU libc does not support any K&R compilers or the traditional mode
+//    of ISO C compilers anymore.  Check for some of the combinations not
+//    anymore supported.
+
+// Some user header file might have defined this before.
+
+// All functions, except those with callbacks or those that
+//    synchronize memory, are leaf functions.
+
+// GCC can always grok prototypes.  For C++ programs we add throw()
+//    to help it optimize the function calls.  But this works only with
+//    gcc 2.8.x and egcs.  For gcc 3.2 and up we even mark C functions
+//    as non-throwing using a function attribute since programs can use
+//    the -fexceptions options for C code as well.
+
+// Compilers that are not clang may object to
+//        #if defined __clang__ && __has_extension(...)
+//    even though they do not need to evaluate the right-hand side of the &&.
+
+// These two macros are not used in glibc anymore.  They are kept here
+//    only because some other projects expect the macros to be defined.
+
+// For these things, GCC behaves the ANSI way normally,
+//    and the non-ANSI way under -traditional.
+
+// This is not a typedef so `const __ptr_t' does the right thing.
+
+// C++ needs to know that types and declarations are C, not C++.
+
+// Fortify support.
+
+// Support for flexible arrays.
+//    Headers that should use flexible arrays only if they're "real"
+//    (e.g. only if they won't affect sizeof()) should test
+//    #if __glibc_c99_flexarr_available.
+
+// __asm__ ("xyz") is used throughout the headers to rename functions
+//    at the assembly language level.  This is wrapped by the __REDIRECT
+//    macro, in order to support compilers that can do this some other
+//    way.  When compilers don't support asm-names at all, we have to do
+//    preprocessor tricks instead (which don't have exactly the right
+//    semantics, but it's the best we can do).
+//
+//    Example:
+//    int __REDIRECT(setpgrp, (__pid_t pid, __pid_t pgrp), setpgid);
+
+//
+// #elif __SOME_OTHER_COMPILER__
+//
+// # define __REDIRECT(name, proto, alias) name proto; 	_Pragma("let " #name " = " #alias)
+
+// GCC has various useful declarations that can be made with the
+//    `__attribute__' syntax.  All of the ways we use this do fine if
+//    they are omitted for compilers that don't understand it.
+
+// At some point during the gcc 2.96 development the `malloc' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// Tell the compiler which arguments to an allocation function
+//    indicate the size of the allocation.
+
+// At some point during the gcc 2.96 development the `pure' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// This declaration tells the compiler that the value is constant.
+
+// At some point during the gcc 3.1 development the `used' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// Since version 3.2, gcc allows marking deprecated functions.
+
+// Since version 4.5, gcc also allows one to specify the message printed
+//    when a deprecated function is used.  clang claims to be gcc 4.2, but
+//    may also support this feature.
+
+// At some point during the gcc 2.8 development the `format_arg' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+//    If several `format_arg' attributes are given for the same function, in
+//    gcc-3.0 and older, all but the last one are ignored.  In newer gccs,
+//    all designated arguments are considered.
+
+// At some point during the gcc 2.97 development the `strfmon' format
+//    attribute for functions was introduced.  We don't want to use it
+//    unconditionally (although this would be possible) since it
+//    generates warnings.
+
+// The nonull function attribute allows to mark pointer parameters which
+//    must not be NULL.
+
+// If fortification mode, we warn about unused results of certain
+//    function calls which can lead to problems.
+
+// Forces a function to be always inlined.
+// The Linux kernel defines __always_inline in stddef.h (283d7573), and
+//    it conflicts with this definition.  Therefore undefine it first to
+//    allow either header to be included first.
+
+// Associate error messages with the source location of the call site rather
+//    than with the source location inside the function.
+
+// GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99
+//    inline semantics, unless -fgnu89-inline is used.  Using __GNUC_STDC_INLINE__
+//    or __GNUC_GNU_INLINE is not a good enough check for gcc because gcc versions
+//    older than 4.3 may define these macros and still not guarantee GNU inlining
+//    semantics.
+//
+//    clang++ identifies itself as gcc-4.2, but has support for GNU inlining
+//    semantics, that can be checked for by using the __GNUC_STDC_INLINE_ and
+//    __GNUC_GNU_INLINE__ macro definitions.
+
+// GCC 4.3 and above allow passing all anonymous arguments of an
+//    __extern_always_inline function to some other vararg function.
+
+// It is possible to compile containing GCC extensions even if GCC is
+//    run in pedantic mode if the uses are carefully marked using the
+//    `__extension__' keyword.  But this is not generally available before
+//    version 2.8.
+
+// __restrict is known in EGCS 1.2 and above.
+
+// ISO C99 also allows to declare arrays as non-overlapping.  The syntax is
+//      array_name[restrict]
+//    GCC 3.1 supports this.
+
+// Describes a char array whose address can safely be passed as the first
+//    argument to strncpy and strncat, as the char array is not necessarily
+//    a NUL-terminated string.
+
+// Undefine (also defined in libc-symbols.h).
+// Copies attributes from the declaration or type referenced by
+//    the argument.
+
+// Determine the wordsize from the preprocessor defines.
+
+// Properties of long double type.  ldbl-opt version.
+//    Copyright (C) 2016-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License  published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// __glibc_macro_warning (MESSAGE) issues warning MESSAGE.  This is
+//    intended for use in preprocessor macros.
+//
+//    Note: MESSAGE must be a _single_ string; concatenation of string
+//    literals is not supported.
+
+// Generic selection (ISO C11) is a C-only feature, available in GCC
+//    since version 4.9.  Previous versions do not provide generic
+//    selection, even though they might set __STDC_VERSION__ to 201112L,
+//    when in -std=c11 mode.  Thus, we must check for !defined __GNUC__
+//    when testing __STDC_VERSION__ for generic selection support.
+//    On the other hand, Clang also defines __GNUC__, so a clang-specific
+//    check is required to enable the use of generic selection.
+
+// If we don't have __REDIRECT, prototypes will be missing if
+//    __USE_FILE_OFFSET64 but not __USE_LARGEFILE[64].
+
+// Decide whether we can define 'extern inline' functions in headers.
+
+// This is here only because every header file already includes this one.
+//    Get the definitions of all the appropriate `__stub_FUNCTION' symbols.
+//    <gnu/stubs.h> contains `#define __stub_FUNCTION' when FUNCTION is a stub
+//    that will always return failure (and set errno to ENOSYS).
+// This file is automatically generated.
+//    This file selects the right generated file of `__stub_FUNCTION' macros
+//    based on the architecture being compiled for.
+
+// Determine the wordsize from the preprocessor defines.
+
+// This file is automatically generated.
+//    It defines a symbol `__stub_FUNCTION' for each function
+//    in the C library which is a stub, meaning it will fail
+//    every time called, usually setting errno to ENOSYS.
+
+// We need `pid_t'.
+// bits/types.h -- definitions of __*_t types underlying *_t types.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Never include this file directly; use <sys/types.h> instead.
+
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Determine the wordsize from the preprocessor defines.
+
+// Bit size of the time_t type at glibc build time, general case.
+//    Copyright (C) 2018-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Determine the wordsize from the preprocessor defines.
+
+// Size in bits of the 'time_t' type of the default ABI.
+
+// Convenience types.
+type X__u_char = uint8   /* types.h:31:23 */
+type X__u_short = uint16 /* types.h:32:28 */
+type X__u_int = uint32   /* types.h:33:22 */
+type X__u_long = uint64  /* types.h:34:27 */
+
+// Fixed-size types, underlying types depend on word size and compiler.
+type X__int8_t = int8     /* types.h:37:21 */
+type X__uint8_t = uint8   /* types.h:38:23 */
+type X__int16_t = int16   /* types.h:39:26 */
+type X__uint16_t = uint16 /* types.h:40:28 */
+type X__int32_t = int32   /* types.h:41:20 */
+type X__uint32_t = uint32 /* types.h:42:22 */
+type X__int64_t = int64   /* types.h:44:25 */
+type X__uint64_t = uint64 /* types.h:45:27 */
+
+// Smallest types with at least a given width.
+type X__int_least8_t = X__int8_t     /* types.h:52:18 */
+type X__uint_least8_t = X__uint8_t   /* types.h:53:19 */
+type X__int_least16_t = X__int16_t   /* types.h:54:19 */
+type X__uint_least16_t = X__uint16_t /* types.h:55:20 */
+type X__int_least32_t = X__int32_t   /* types.h:56:19 */
+type X__uint_least32_t = X__uint32_t /* types.h:57:20 */
+type X__int_least64_t = X__int64_t   /* types.h:58:19 */
+type X__uint_least64_t = X__uint64_t /* types.h:59:20 */
+
+// quad_t is also 64 bits.
+type X__quad_t = int64    /* types.h:63:18 */
+type X__u_quad_t = uint64 /* types.h:64:27 */
+
+// Largest integral types.
+type X__intmax_t = int64   /* types.h:72:18 */
+type X__uintmax_t = uint64 /* types.h:73:27 */
+
+// The machine-dependent file <bits/typesizes.h> defines __*_T_TYPE
+//    macros for each of the OS types we define below.  The definitions
+//    of those macros must use the following macros for underlying types.
+//    We define __S<SIZE>_TYPE and __U<SIZE>_TYPE for the signed and unsigned
+//    variants of each of the following integer types on this machine.
+//
+// 	16		-- "natural" 16-bit type (always short)
+// 	32		-- "natural" 32-bit type (always int)
+// 	64		-- "natural" 64-bit type (long or long long)
+// 	LONG32		-- 32-bit type, traditionally long
+// 	QUAD		-- 64-bit type, traditionally long long
+// 	WORD		-- natural type of __WORDSIZE bits (int or long)
+// 	LONGWORD	-- type of __WORDSIZE bits, traditionally long
+//
+//    We distinguish WORD/LONGWORD, 32/LONG32, and 64/QUAD so that the
+//    conventional uses of `long' or `long long' type modifiers match the
+//    types we define, even when a less-adorned type would be the same size.
+//    This matters for (somewhat) portably writing printf/scanf formats for
+//    these types, where using the appropriate l or ll format modifiers can
+//    make the typedefs and the formats match up across all GNU platforms.  If
+//    we used `long' when it's 64 bits where `long long' is expected, then the
+//    compiler would warn about the formats not matching the argument types,
+//    and the programmer changing them to shut up the compiler would break the
+//    program's portability.
+//
+//    Here we assume what is presently the case in all the GCC configurations
+//    we support: long long is always 64 bits, long is always word/address size,
+//    and int is always 32 bits.
+
+// No need to mark the typedef with __extension__.
+// bits/typesizes.h -- underlying types for *_t.  Generic version.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// See <bits/types.h> for the meaning of these macros.  This file exists so
+//    that <bits/types.h> need not vary across different GNU platforms.
+
+// Tell the libc code that off_t and off64_t are actually the same type
+//    for all ABI purposes, even if possibly expressed as different base types
+//    for C type-checking purposes.
+
+// Same for ino_t and ino64_t.
+
+// And for rlim_t and rlim64_t.
+
+// And for fsblkcnt_t, fsblkcnt64_t, fsfilcnt_t and fsfilcnt64_t.
+
+// Number of descriptors that can fit in an `fd_set'.
+
+// bits/time64.h -- underlying types for __time64_t.  Generic version.
+//    Copyright (C) 2018-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Define __TIME64_T_TYPE so that it is always a 64-bit type.
+
+// If we already have 64-bit time type then use it.
+
+type X__dev_t = uint64                     /* types.h:145:25 */ // Type of device numbers.
+type X__uid_t = uint32                     /* types.h:146:25 */ // Type of user identifications.
+type X__gid_t = uint32                     /* types.h:147:25 */ // Type of group identifications.
+type X__ino_t = uint64                     /* types.h:148:25 */ // Type of file serial numbers.
+type X__ino64_t = uint64                   /* types.h:149:27 */ // Type of file serial numbers (LFS).
+type X__mode_t = uint32                    /* types.h:150:26 */ // Type of file attribute bitmasks.
+type X__nlink_t = uint64                   /* types.h:151:27 */ // Type of file link counts.
+type X__off_t = int64                      /* types.h:152:25 */ // Type of file sizes and offsets.
+type X__off64_t = int64                    /* types.h:153:27 */ // Type of file sizes and offsets (LFS).
+type X__pid_t = int32                      /* types.h:154:25 */ // Type of process identifications.
+type X__fsid_t = struct{ F__val [2]int32 } /* types.h:155:26 */ // Type of file system IDs.
+type X__clock_t = int64                    /* types.h:156:27 */ // Type of CPU usage counts.
+type X__rlim_t = uint64                    /* types.h:157:26 */ // Type for resource measurement.
+type X__rlim64_t = uint64                  /* types.h:158:28 */ // Type for resource measurement (LFS).
+type X__id_t = uint32                      /* types.h:159:24 */ // General type for IDs.
+type X__time_t = int64                     /* types.h:160:26 */ // Seconds since the Epoch.
+type X__useconds_t = uint32                /* types.h:161:30 */ // Count of microseconds.
+type X__suseconds_t = int64                /* types.h:162:31 */ // Signed count of microseconds.
+
+type X__daddr_t = int32 /* types.h:164:27 */ // The type of a disk address.
+type X__key_t = int32   /* types.h:165:25 */ // Type of an IPC key.
+
+// Clock ID used in clock and timer functions.
+type X__clockid_t = int32 /* types.h:168:29 */
+
+// Timer ID returned by `timer_create'.
+type X__timer_t = uintptr /* types.h:171:12 */
+
+// Type to represent block size.
+type X__blksize_t = int64 /* types.h:174:29 */
+
+// Types from the Large File Support interface.
+
+// Type to count number of disk blocks.
+type X__blkcnt_t = int64   /* types.h:179:28 */
+type X__blkcnt64_t = int64 /* types.h:180:30 */
+
+// Type to count file system blocks.
+type X__fsblkcnt_t = uint64   /* types.h:183:30 */
+type X__fsblkcnt64_t = uint64 /* types.h:184:32 */
+
+// Type to count file system nodes.
+type X__fsfilcnt_t = uint64   /* types.h:187:30 */
+type X__fsfilcnt64_t = uint64 /* types.h:188:32 */
+
+// Type of miscellaneous file system fields.
+type X__fsword_t = int64 /* types.h:191:28 */
+
+type X__ssize_t = int64 /* types.h:193:27 */ // Type of a byte count, or error.
+
+// Signed long type used in system calls.
+type X__syscall_slong_t = int64 /* types.h:196:33 */
+// Unsigned long type used in system calls.
+type X__syscall_ulong_t = uint64 /* types.h:198:33 */
+
+// These few don't really vary by system, they always correspond
+//
+//	to one of the other defined types.
+type X__loff_t = X__off64_t /* types.h:202:19 */ // Type of file sizes and offsets (LFS).
+type X__caddr_t = uintptr   /* types.h:203:14 */
+
+// Duplicates info from stdint.h but this is used in unistd.h.
+type X__intptr_t = int64 /* types.h:206:25 */
+
+// Duplicate info from sys/socket.h.
+type X__socklen_t = uint32 /* types.h:209:23 */
+
+// C99: An integer type that can be accessed as an atomic entity,
+//
+//	even in the presence of asynchronous interrupts.
+//	It is not currently necessary for this to be machine-specific.
+type X__sig_atomic_t = int32 /* types.h:214:13 */
+
+// Seconds since the Epoch, visible to user code when time_t is too
+//    narrow only for consistency with the old way of widening too-narrow
+//    types.  User code should never use __time64_t.
+
+type Pid_t = X__pid_t /* termios.h:30:17 */
+
+// Get the system-dependent definitions of `struct termios', `tcflag_t',
+//    `cc_t', `speed_t', and all the macros specifying the flag bits.
+// termios type and macro definitions.  Linux version.
+//    Copyright (C) 1993-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+type Cc_t = uint8      /* termios.h:23:23 */
+type Speed_t = uint32  /* termios.h:24:22 */
+type Tcflag_t = uint32 /* termios.h:25:22 */
+
+// struct termios definition.  Linux/generic version.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+type Termios = struct {
+	Fc_iflag     Tcflag_t
+	Fc_oflag     Tcflag_t
+	Fc_cflag     Tcflag_t
+	Fc_lflag     Tcflag_t
+	Fc_line      Cc_t
+	Fc_cc        [32]Cc_t
+	F__ccgo_pad1 [3]byte
+	Fc_ispeed    Speed_t
+	Fc_ospeed    Speed_t
+} /* termios-struct.h:24:1 */
+
+// termios c_cc symbolic constant definitions.  Linux/powerpc version.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+// c_cc characters
+
+// termios input mode definitions.  Linux/powerpc version.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+// c_iflag bits
+// termios output mode definitions.  Linux/powerpc version.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+// c_oflag bits
+
+// c_cflag bit meaning
+// termios baud rate selection definitions.  Linux/powerpc version.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+// termios control mode definitions.  Linux/powerpc version.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+// termios local mode definitions.  Linux/powerpc version.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+// c_lflag bits
+
+// ioctl (fd, TIOCSERGETLSR, &result) where result may be as below
+
+// tcflow() and TCXONC use these
+
+// tcflush() and TCFLSH use these
+
+// termios tcflag symbolic contants definitions.  Linux/generic version.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+// tcsetattr uses these.
+
+// termios baud platform specific definitions.  Linux/powerpc version.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+type Sgttyb = struct {
+	Fsg_ispeed uint8
+	Fsg_ospeed uint8
+	Fsg_erase  uint8
+	Fsg_kill   uint8
+	Fsg_flags  int16
+} /* termios-misc.h:25:1 */
+
+type Tchars = struct {
+	Ft_intrc  uint8
+	Ft_quitc  uint8
+	Ft_startc uint8
+	Ft_stopc  uint8
+	Ft_eofc   uint8
+	Ft_brkc   uint8
+} /* termios-misc.h:33:1 */
+
+type Ltchars = struct {
+	Ft_suspc  uint8
+	Ft_dsuspc uint8
+	Ft_rprntc uint8
+	Ft_flushc uint8
+	Ft_werasc uint8
+	Ft_lnextc uint8
+} /* termios-misc.h:42:1 */
+
+// -
+// Copyright (c) 1982, 1986, 1993
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttydefaults.h	8.4 (Berkeley) 1/21/94
+
+// System wide defaults for terminal state.  Linux version.
+
+// Defaults on "first" open.
+
+// Control Character Defaults
+// compat
+
+// PROTECTED INCLUSION ENDS HERE
+
+// #define TTYDEFCHARS to include an array of default control characters.
+
+var _ uint8 /* gen.c:2:13: */
diff --git a/vendor/modernc.org/libc/termios/termios_linux_riscv64.go b/vendor/modernc.org/libc/termios/termios_linux_riscv64.go
new file mode 100644
index 0000000..c669857
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/termios_linux_riscv64.go
@@ -0,0 +1,1196 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o termios/termios_linux_riscv64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+import (
+	"math"
+	"reflect"
+	"sync/atomic"
+	"unsafe"
+)
+
+var _ = math.Pi
+var _ reflect.Kind
+var _ atomic.Value
+var _ unsafe.Pointer
+
+const (
+	B0                             = 0000000
+	B1000000                       = 0010010
+	B110                           = 0000003
+	B115200                        = 0010002
+	B1152000                       = 0010011
+	B1200                          = 0000011
+	B134                           = 0000004
+	B150                           = 0000005
+	B1500000                       = 0010012
+	B1800                          = 0000012
+	B19200                         = 0000016
+	B200                           = 0000006
+	B2000000                       = 0010013
+	B230400                        = 0010003
+	B2400                          = 0000013
+	B2500000                       = 0010014
+	B300                           = 0000007
+	B3000000                       = 0010015
+	B3500000                       = 0010016
+	B38400                         = 0000017
+	B4000000                       = 0010017
+	B460800                        = 0010004
+	B4800                          = 0000014
+	B50                            = 0000001
+	B500000                        = 0010005
+	B57600                         = 0010001
+	B576000                        = 0010006
+	B600                           = 0000010
+	B75                            = 0000002
+	B921600                        = 0010007
+	B9600                          = 0000015
+	BRKINT                         = 0000002
+	BS0                            = 0000000
+	BS1                            = 0020000
+	BSDLY                          = 0020000
+	CBAUD                          = 000000010017
+	CBAUDEX                        = 000000010000
+	CBRK                           = 0
+	CDISCARD                       = 15
+	CDSUSP                         = 25
+	CEOF                           = 4
+	CEOL                           = 0
+	CEOT                           = 4
+	CERASE                         = 0177
+	CFLUSH                         = 15
+	CIBAUD                         = 002003600000
+	CINTR                          = 3
+	CKILL                          = 21
+	CLNEXT                         = 22
+	CLOCAL                         = 0004000
+	CMIN                           = 1
+	CMSPAR                         = 010000000000
+	CQUIT                          = 034
+	CR0                            = 0000000
+	CR1                            = 0001000
+	CR2                            = 0002000
+	CR3                            = 0003000
+	CRDLY                          = 0003000
+	CREAD                          = 0000200
+	CREPRINT                       = 18
+	CRPRNT                         = 18
+	CRTSCTS                        = 020000000000
+	CS5                            = 0000000
+	CS6                            = 0000020
+	CS7                            = 0000040
+	CS8                            = 0000060
+	CSIZE                          = 0000060
+	CSTART                         = 17
+	CSTATUS                        = 0
+	CSTOP                          = 19
+	CSTOPB                         = 0000100
+	CSUSP                          = 26
+	CTIME                          = 0
+	CWERASE                        = 23
+	ECHO                           = 0000010
+	ECHOCTL                        = 0001000
+	ECHOE                          = 0000020
+	ECHOK                          = 0000040
+	ECHOKE                         = 0004000
+	ECHONL                         = 0000100
+	ECHOPRT                        = 0002000
+	EXTA                           = 14
+	EXTB                           = 15
+	EXTPROC                        = 0200000
+	FF0                            = 0000000
+	FF1                            = 0100000
+	FFDLY                          = 0100000
+	FLUSHO                         = 0010000
+	HUPCL                          = 0002000
+	ICANON                         = 0000002
+	ICRNL                          = 0000400
+	IEXTEN                         = 0100000
+	IGNBRK                         = 0000001
+	IGNCR                          = 0000200
+	IGNPAR                         = 0000004
+	IMAXBEL                        = 0020000
+	INLCR                          = 0000100
+	INPCK                          = 0000020
+	ISIG                           = 0000001
+	ISTRIP                         = 0000040
+	IUCLC                          = 0001000
+	IUTF8                          = 0040000
+	IXANY                          = 0004000
+	IXOFF                          = 0010000
+	IXON                           = 0002000
+	NCCS                           = 32
+	NL0                            = 0000000
+	NL1                            = 0000400
+	NLDLY                          = 0000400
+	NOFLSH                         = 0000200
+	OCRNL                          = 0000010
+	OFDEL                          = 0000200
+	OFILL                          = 0000100
+	OLCUC                          = 0000002
+	ONLCR                          = 0000004
+	ONLRET                         = 0000040
+	ONOCR                          = 0000020
+	OPOST                          = 0000001
+	PARENB                         = 0000400
+	PARMRK                         = 0000010
+	PARODD                         = 0001000
+	PENDIN                         = 0040000
+	TAB0                           = 0000000
+	TAB1                           = 0004000
+	TAB2                           = 0010000
+	TAB3                           = 0014000
+	TABDLY                         = 0014000
+	TCIFLUSH                       = 0
+	TCIOFF                         = 2
+	TCIOFLUSH                      = 2
+	TCION                          = 3
+	TCOFLUSH                       = 1
+	TCOOFF                         = 0
+	TCOON                          = 1
+	TCSADRAIN                      = 1
+	TCSAFLUSH                      = 2
+	TCSANOW                        = 0
+	TIOCSER_TEMT                   = 0x01
+	TOSTOP                         = 0000400
+	TTYDEF_CFLAG                   = 1440
+	TTYDEF_IFLAG                   = 11554
+	TTYDEF_LFLAG                   = 35355
+	TTYDEF_OFLAG                   = 6149
+	TTYDEF_SPEED                   = 13
+	VDISCARD                       = 13
+	VEOF                           = 4
+	VEOL                           = 11
+	VEOL2                          = 16
+	VERASE                         = 2
+	VINTR                          = 0
+	VKILL                          = 3
+	VLNEXT                         = 15
+	VMIN                           = 6
+	VQUIT                          = 1
+	VREPRINT                       = 12
+	VSTART                         = 8
+	VSTOP                          = 9
+	VSUSP                          = 10
+	VSWTC                          = 7
+	VT0                            = 0000000
+	VT1                            = 0040000
+	VTDLY                          = 0040000
+	VTIME                          = 5
+	VWERASE                        = 14
+	XCASE                          = 0000004
+	XTABS                          = 0014000
+	X_ATFILE_SOURCE                = 1
+	X_BITS_TIME64_H                = 1
+	X_BITS_TYPESIZES_H             = 1
+	X_BITS_TYPES_H                 = 1
+	X_DEFAULT_SOURCE               = 1
+	X_FEATURES_H                   = 1
+	X_FILE_OFFSET_BITS             = 64
+	X_HAVE_STRUCT_TERMIOS_C_ISPEED = 1
+	X_HAVE_STRUCT_TERMIOS_C_OSPEED = 1
+	X_LP64                         = 1
+	X_POSIX_C_SOURCE               = 200809
+	X_POSIX_SOURCE                 = 1
+	X_STDC_PREDEF_H                = 1
+	X_SYS_CDEFS_H                  = 1
+	X_SYS_TTYDEFAULTS_H_           = 0
+	X_TERMIOS_H                    = 1
+	Linux                          = 1
+	Unix                           = 1
+)
+
+type Ptrdiff_t = int64 /* <builtin>:3:26 */
+
+type Size_t = uint64 /* <builtin>:9:23 */
+
+type Wchar_t = int32 /* <builtin>:15:24 */
+
+type X__int128_t = struct {
+	Flo int64
+	Fhi int64
+} /* <builtin>:21:43 */ // must match modernc.org/mathutil.Int128
+type X__uint128_t = struct {
+	Flo uint64
+	Fhi uint64
+} /* <builtin>:22:44 */ // must match modernc.org/mathutil.Int128
+
+type X__builtin_va_list = uintptr /* <builtin>:46:14 */
+type X__float128 = float64        /* <builtin>:47:21 */
+
+// Copyright (C) 1991-2021 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+//	POSIX Standard: 7.1-2 General Terminal Interface	<termios.h>
+
+// Copyright (C) 1991-2021 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// These are defined by the user (or the compiler)
+//    to specify the desired environment:
+//
+//    __STRICT_ANSI__	ISO Standard C.
+//    _ISOC99_SOURCE	Extensions to ISO C89 from ISO C99.
+//    _ISOC11_SOURCE	Extensions to ISO C99 from ISO C11.
+//    _ISOC2X_SOURCE	Extensions to ISO C99 from ISO C2X.
+//    __STDC_WANT_LIB_EXT2__
+// 			Extensions to ISO C99 from TR 27431-2:2010.
+//    __STDC_WANT_IEC_60559_BFP_EXT__
+// 			Extensions to ISO C11 from TS 18661-1:2014.
+//    __STDC_WANT_IEC_60559_FUNCS_EXT__
+// 			Extensions to ISO C11 from TS 18661-4:2015.
+//    __STDC_WANT_IEC_60559_TYPES_EXT__
+// 			Extensions to ISO C11 from TS 18661-3:2015.
+//    __STDC_WANT_IEC_60559_EXT__
+// 			ISO C2X interfaces defined only in Annex F.
+//
+//    _POSIX_SOURCE	IEEE Std 1003.1.
+//    _POSIX_C_SOURCE	If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2;
+// 			if >=199309L, add IEEE Std 1003.1b-1993;
+// 			if >=199506L, add IEEE Std 1003.1c-1995;
+// 			if >=200112L, all of IEEE 1003.1-2004
+// 			if >=200809L, all of IEEE 1003.1-2008
+//    _XOPEN_SOURCE	Includes POSIX and XPG things.  Set to 500 if
+// 			Single Unix conformance is wanted, to 600 for the
+// 			sixth revision, to 700 for the seventh revision.
+//    _XOPEN_SOURCE_EXTENDED XPG things and X/Open Unix extensions.
+//    _LARGEFILE_SOURCE	Some more functions for correct standard I/O.
+//    _LARGEFILE64_SOURCE	Additional functionality from LFS for large files.
+//    _FILE_OFFSET_BITS=N	Select default filesystem interface.
+//    _ATFILE_SOURCE	Additional *at interfaces.
+//    _DYNAMIC_STACK_SIZE_SOURCE Select correct (but non compile-time constant)
+// 			MINSIGSTKSZ, SIGSTKSZ and PTHREAD_STACK_MIN.
+//    _GNU_SOURCE		All of the above, plus GNU extensions.
+//    _DEFAULT_SOURCE	The default set of features (taking precedence over
+// 			__STRICT_ANSI__).
+//
+//    _FORTIFY_SOURCE	Add security hardening to many library functions.
+// 			Set to 1 or 2; 2 performs stricter checks than 1.
+//
+//    _REENTRANT, _THREAD_SAFE
+// 			Obsolete; equivalent to _POSIX_C_SOURCE=199506L.
+//
+//    The `-ansi' switch to the GNU C compiler, and standards conformance
+//    options such as `-std=c99', define __STRICT_ANSI__.  If none of
+//    these are defined, or if _DEFAULT_SOURCE is defined, the default is
+//    to have _POSIX_SOURCE set to one and _POSIX_C_SOURCE set to
+//    200809L, as well as enabling miscellaneous functions from BSD and
+//    SVID.  If more than one of these are defined, they accumulate.  For
+//    example __STRICT_ANSI__, _POSIX_SOURCE and _POSIX_C_SOURCE together
+//    give you ISO C, 1003.1, and 1003.2, but nothing else.
+//
+//    These are defined by this file and are used by the
+//    header files to decide what to declare or define:
+//
+//    __GLIBC_USE (F)	Define things from feature set F.  This is defined
+// 			to 1 or 0; the subsequent macros are either defined
+// 			or undefined, and those tests should be moved to
+// 			__GLIBC_USE.
+//    __USE_ISOC11		Define ISO C11 things.
+//    __USE_ISOC99		Define ISO C99 things.
+//    __USE_ISOC95		Define ISO C90 AMD1 (C95) things.
+//    __USE_ISOCXX11	Define ISO C++11 things.
+//    __USE_POSIX		Define IEEE Std 1003.1 things.
+//    __USE_POSIX2		Define IEEE Std 1003.2 things.
+//    __USE_POSIX199309	Define IEEE Std 1003.1, and .1b things.
+//    __USE_POSIX199506	Define IEEE Std 1003.1, .1b, .1c and .1i things.
+//    __USE_XOPEN		Define XPG things.
+//    __USE_XOPEN_EXTENDED	Define X/Open Unix things.
+//    __USE_UNIX98		Define Single Unix V2 things.
+//    __USE_XOPEN2K        Define XPG6 things.
+//    __USE_XOPEN2KXSI     Define XPG6 XSI things.
+//    __USE_XOPEN2K8       Define XPG7 things.
+//    __USE_XOPEN2K8XSI    Define XPG7 XSI things.
+//    __USE_LARGEFILE	Define correct standard I/O things.
+//    __USE_LARGEFILE64	Define LFS things with separate names.
+//    __USE_FILE_OFFSET64	Define 64bit interface as default.
+//    __USE_MISC		Define things from 4.3BSD or System V Unix.
+//    __USE_ATFILE		Define *at interfaces and AT_* constants for them.
+//    __USE_DYNAMIC_STACK_SIZE Define correct (but non compile-time constant)
+// 			MINSIGSTKSZ, SIGSTKSZ and PTHREAD_STACK_MIN.
+//    __USE_GNU		Define GNU extensions.
+//    __USE_FORTIFY_LEVEL	Additional security measures used, according to level.
+//
+//    The macros `__GNU_LIBRARY__', `__GLIBC__', and `__GLIBC_MINOR__' are
+//    defined by this file unconditionally.  `__GNU_LIBRARY__' is provided
+//    only for compatibility.  All new code should use the other symbols
+//    to test for features.
+//
+//    All macros listed above as possibly being defined by this file are
+//    explicitly undefined if they are not explicitly defined.
+//    Feature-test macros that are not defined by the user or compiler
+//    but are implied by the other feature-test macros defined (or by the
+//    lack of any definitions) are defined by the file.
+//
+//    ISO C feature test macros depend on the definition of the macro
+//    when an affected header is included, not when the first system
+//    header is included, and so they are handled in
+//    <bits/libc-header-start.h>, which does not have a multiple include
+//    guard.  Feature test macros that can be handled from the first
+//    system header included are handled here.
+
+// Undefine everything, so we get a clean slate.
+
+// Suppress kernel-name space pollution unless user expressedly asks
+//    for it.
+
+// Convenience macro to test the version of gcc.
+//    Use like this:
+//    #if __GNUC_PREREQ (2,8)
+//    ... code requiring gcc 2.8 or later ...
+//    #endif
+//    Note: only works for GCC 2.0 and later, because __GNUC_MINOR__ was
+//    added in 2.0.
+
+// Similarly for clang.  Features added to GCC after version 4.2 may
+//    or may not also be available in clang, and clang's definitions of
+//    __GNUC(_MINOR)__ are fixed at 4 and 2 respectively.  Not all such
+//    features can be queried via __has_extension/__has_feature.
+
+// Whether to use feature set F.
+
+// _BSD_SOURCE and _SVID_SOURCE are deprecated aliases for
+//    _DEFAULT_SOURCE.  If _DEFAULT_SOURCE is present we do not
+//    issue a warning; the expectation is that the source is being
+//    transitioned to use the new macro.
+
+// If _GNU_SOURCE was defined by the user, turn on all the other features.
+
+// If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined,
+//    define _DEFAULT_SOURCE.
+
+// This is to enable the ISO C2X extension.
+
+// This is to enable the ISO C11 extension.
+
+// This is to enable the ISO C99 extension.
+
+// This is to enable the ISO C90 Amendment 1:1995 extension.
+
+// If none of the ANSI/POSIX macros are defined, or if _DEFAULT_SOURCE
+//    is defined, use POSIX.1-2008 (or another version depending on
+//    _XOPEN_SOURCE).
+
+// Some C libraries once required _REENTRANT and/or _THREAD_SAFE to be
+//    defined in all multithreaded code.  GNU libc has not required this
+//    for many years.  We now treat them as compatibility synonyms for
+//    _POSIX_C_SOURCE=199506L, which is the earliest level of POSIX with
+//    comprehensive support for multithreaded code.  Using them never
+//    lowers the selected level of POSIX conformance, only raises it.
+
+// Features part to handle 64-bit time_t support.
+//    Copyright (C) 2021 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// We need to know the word size in order to check the time size.
+// Determine the wordsize from the preprocessor defines.  RISC-V version.
+//    Copyright (C) 2002-2021 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Bit size of the time_t type at glibc build time, RISC-V case.
+//    Copyright (C) 2020-2021 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Determine the wordsize from the preprocessor defines.  RISC-V version.
+//    Copyright (C) 2002-2021 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+// RV32 and RV64 both use 64-bit time_t
+
+// The function 'gets' existed in C89, but is impossible to use
+//    safely.  It has been removed from ISO C11 and ISO C++14.  Note: for
+//    compatibility with various implementations of <cstdio>, this test
+//    must consider only the value of __cplusplus when compiling C++.
+
+// GNU formerly extended the scanf functions with modified format
+//    specifiers %as, %aS, and %a[...] that allocate a buffer for the
+//    input using malloc.  This extension conflicts with ISO C99, which
+//    defines %a as a standalone format specifier that reads a floating-
+//    point number; moreover, POSIX.1-2008 provides the same feature
+//    using the modifier letter 'm' instead (%ms, %mS, %m[...]).
+//
+//    We now follow C99 unless GNU extensions are active and the compiler
+//    is specifically in C89 or C++98 mode (strict or not).  For
+//    instance, with GCC, -std=gnu11 will have C99-compliant scanf with
+//    or without -D_GNU_SOURCE, but -std=c89 -D_GNU_SOURCE will have the
+//    old extension.
+
+// Get definitions of __STDC_* predefined macros, if the compiler has
+//    not preincluded this header automatically.
+// Copyright (C) 1991-2021 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// This macro indicates that the installed library is the GNU C Library.
+//    For historic reasons the value now is 6 and this will stay from now
+//    on.  The use of this variable is deprecated.  Use __GLIBC__ and
+//    __GLIBC_MINOR__ now (see below) when you want to test for a specific
+//    GNU C library version and use the values in <gnu/lib-names.h> to get
+//    the sonames of the shared libraries.
+
+// Major and minor version number of the GNU C library package.  Use
+//    these macros to test for features in specific releases.
+
+// This is here only because every header file already includes this one.
+// Copyright (C) 1992-2021 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// We are almost always included from features.h.
+
+// The GNU libc does not support any K&R compilers or the traditional mode
+//    of ISO C compilers anymore.  Check for some of the combinations not
+//    supported anymore.
+
+// Some user header file might have defined this before.
+
+// Compilers that lack __has_attribute may object to
+//        #if defined __has_attribute && __has_attribute (...)
+//    even though they do not need to evaluate the right-hand side of the &&.
+//    Similarly for __has_builtin, etc.
+
+// All functions, except those with callbacks or those that
+//    synchronize memory, are leaf functions.
+
+// GCC can always grok prototypes.  For C++ programs we add throw()
+//    to help it optimize the function calls.  But this only works with
+//    gcc 2.8.x and egcs.  For gcc 3.4 and up we even mark C functions
+//    as non-throwing using a function attribute since programs can use
+//    the -fexceptions options for C code as well.
+
+// These two macros are not used in glibc anymore.  They are kept here
+//    only because some other projects expect the macros to be defined.
+
+// For these things, GCC behaves the ANSI way normally,
+//    and the non-ANSI way under -traditional.
+
+// This is not a typedef so `const __ptr_t' does the right thing.
+
+// C++ needs to know that types and declarations are C, not C++.
+
+// Fortify support.
+
+// Use __builtin_dynamic_object_size at _FORTIFY_SOURCE=3 when available.
+
+// Support for flexible arrays.
+//    Headers that should use flexible arrays only if they're "real"
+//    (e.g. only if they won't affect sizeof()) should test
+//    #if __glibc_c99_flexarr_available.
+
+// __asm__ ("xyz") is used throughout the headers to rename functions
+//    at the assembly language level.  This is wrapped by the __REDIRECT
+//    macro, in order to support compilers that can do this some other
+//    way.  When compilers don't support asm-names at all, we have to do
+//    preprocessor tricks instead (which don't have exactly the right
+//    semantics, but it's the best we can do).
+//
+//    Example:
+//    int __REDIRECT(setpgrp, (__pid_t pid, __pid_t pgrp), setpgid);
+
+//
+// #elif __SOME_OTHER_COMPILER__
+//
+// # define __REDIRECT(name, proto, alias) name proto; 	_Pragma("let " #name " = " #alias)
+
+// GCC and clang have various useful declarations that can be made with
+//    the '__attribute__' syntax.  All of the ways we use this do fine if
+//    they are omitted for compilers that don't understand it.
+
+// At some point during the gcc 2.96 development the `malloc' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// Tell the compiler which arguments to an allocation function
+//    indicate the size of the allocation.
+
+// At some point during the gcc 2.96 development the `pure' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// This declaration tells the compiler that the value is constant.
+
+// At some point during the gcc 3.1 development the `used' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// Since version 3.2, gcc allows marking deprecated functions.
+
+// Since version 4.5, gcc also allows one to specify the message printed
+//    when a deprecated function is used.  clang claims to be gcc 4.2, but
+//    may also support this feature.
+
+// At some point during the gcc 2.8 development the `format_arg' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+//    If several `format_arg' attributes are given for the same function, in
+//    gcc-3.0 and older, all but the last one are ignored.  In newer gccs,
+//    all designated arguments are considered.
+
+// At some point during the gcc 2.97 development the `strfmon' format
+//    attribute for functions was introduced.  We don't want to use it
+//    unconditionally (although this would be possible) since it
+//    generates warnings.
+
+// The nonnull function attribute marks pointer parameters that
+//    must not be NULL.
+
+// The returns_nonnull function attribute marks the return type of the function
+//    as always being non-null.
+
+// If fortification mode, we warn about unused results of certain
+//    function calls which can lead to problems.
+
+// Forces a function to be always inlined.
+// The Linux kernel defines __always_inline in stddef.h (283d7573), and
+//    it conflicts with this definition.  Therefore undefine it first to
+//    allow either header to be included first.
+
+// Associate error messages with the source location of the call site rather
+//    than with the source location inside the function.
+
+// GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99
+//    inline semantics, unless -fgnu89-inline is used.  Using __GNUC_STDC_INLINE__
+//    or __GNUC_GNU_INLINE is not a good enough check for gcc because gcc versions
+//    older than 4.3 may define these macros and still not guarantee GNU inlining
+//    semantics.
+//
+//    clang++ identifies itself as gcc-4.2, but has support for GNU inlining
+//    semantics, that can be checked for by using the __GNUC_STDC_INLINE_ and
+//    __GNUC_GNU_INLINE__ macro definitions.
+
+// GCC 4.3 and above allow passing all anonymous arguments of an
+//    __extern_always_inline function to some other vararg function.
+
+// It is possible to compile containing GCC extensions even if GCC is
+//    run in pedantic mode if the uses are carefully marked using the
+//    `__extension__' keyword.  But this is not generally available before
+//    version 2.8.
+
+// __restrict is known in EGCS 1.2 and above, and in clang.
+//    It works also in C++ mode (outside of arrays), but only when spelled
+//    as '__restrict', not 'restrict'.
+
+// ISO C99 also allows to declare arrays as non-overlapping.  The syntax is
+//      array_name[restrict]
+//    GCC 3.1 and clang support this.
+//    This syntax is not usable in C++ mode.
+
+// Describes a char array whose address can safely be passed as the first
+//    argument to strncpy and strncat, as the char array is not necessarily
+//    a NUL-terminated string.
+
+// Undefine (also defined in libc-symbols.h).
+// Copies attributes from the declaration or type referenced by
+//    the argument.
+
+// The #ifndef lets Gnulib avoid including these on non-glibc
+//    platforms, where the includes typically do not exist.
+// Determine the wordsize from the preprocessor defines.  RISC-V version.
+//    Copyright (C) 2002-2021 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Properties of long double type.  ldbl-128 version.
+//    Copyright (C) 2016-2021 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License  published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// long double is distinct from double, so there is nothing to
+//    define here.
+
+// __glibc_macro_warning (MESSAGE) issues warning MESSAGE.  This is
+//    intended for use in preprocessor macros.
+//
+//    Note: MESSAGE must be a _single_ string; concatenation of string
+//    literals is not supported.
+
+// Generic selection (ISO C11) is a C-only feature, available in GCC
+//    since version 4.9.  Previous versions do not provide generic
+//    selection, even though they might set __STDC_VERSION__ to 201112L,
+//    when in -std=c11 mode.  Thus, we must check for !defined __GNUC__
+//    when testing __STDC_VERSION__ for generic selection support.
+//    On the other hand, Clang also defines __GNUC__, so a clang-specific
+//    check is required to enable the use of generic selection.
+
+// Designates a 1-based positional argument ref-index of pointer type
+//    that can be used to access size-index elements of the pointed-to
+//    array according to access mode, or at least one element when
+//    size-index is not provided:
+//      access (access-mode, <ref-index> [, <size-index>])
+
+// Designates dealloc as a function to call to deallocate objects
+//    allocated by the declared function.
+
+// Specify that a function such as setjmp or vfork may return
+//    twice.
+
+// If we don't have __REDIRECT, prototypes will be missing if
+//    __USE_FILE_OFFSET64 but not __USE_LARGEFILE[64].
+
+// Decide whether we can define 'extern inline' functions in headers.
+
+// This is here only because every header file already includes this one.
+//    Get the definitions of all the appropriate `__stub_FUNCTION' symbols.
+//    <gnu/stubs.h> contains `#define __stub_FUNCTION' when FUNCTION is a stub
+//    that will always return failure (and set errno to ENOSYS).
+// This file is automatically generated.
+//    This file selects the right generated file of `__stub_FUNCTION' macros
+//    based on the architecture being compiled for.
+
+// Determine the wordsize from the preprocessor defines.  RISC-V version.
+//    Copyright (C) 2002-2021 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+// This file is automatically generated.
+//    It defines a symbol `__stub_FUNCTION' for each function
+//    in the C library which is a stub, meaning it will fail
+//    every time called, usually setting errno to ENOSYS.
+
+// We need `pid_t'.
+// bits/types.h -- definitions of __*_t types underlying *_t types.
+//    Copyright (C) 2002-2021 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Never include this file directly; use <sys/types.h> instead.
+
+// Copyright (C) 1991-2021 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Determine the wordsize from the preprocessor defines.  RISC-V version.
+//    Copyright (C) 2002-2021 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Bit size of the time_t type at glibc build time, RISC-V case.
+//    Copyright (C) 2020-2021 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Determine the wordsize from the preprocessor defines.  RISC-V version.
+//    Copyright (C) 2002-2021 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+// RV32 and RV64 both use 64-bit time_t
+
+// Convenience types.
+type X__u_char = uint8   /* types.h:31:23 */
+type X__u_short = uint16 /* types.h:32:28 */
+type X__u_int = uint32   /* types.h:33:22 */
+type X__u_long = uint64  /* types.h:34:27 */
+
+// Fixed-size types, underlying types depend on word size and compiler.
+type X__int8_t = int8     /* types.h:37:21 */
+type X__uint8_t = uint8   /* types.h:38:23 */
+type X__int16_t = int16   /* types.h:39:26 */
+type X__uint16_t = uint16 /* types.h:40:28 */
+type X__int32_t = int32   /* types.h:41:20 */
+type X__uint32_t = uint32 /* types.h:42:22 */
+type X__int64_t = int64   /* types.h:44:25 */
+type X__uint64_t = uint64 /* types.h:45:27 */
+
+// Smallest types with at least a given width.
+type X__int_least8_t = X__int8_t     /* types.h:52:18 */
+type X__uint_least8_t = X__uint8_t   /* types.h:53:19 */
+type X__int_least16_t = X__int16_t   /* types.h:54:19 */
+type X__uint_least16_t = X__uint16_t /* types.h:55:20 */
+type X__int_least32_t = X__int32_t   /* types.h:56:19 */
+type X__uint_least32_t = X__uint32_t /* types.h:57:20 */
+type X__int_least64_t = X__int64_t   /* types.h:58:19 */
+type X__uint_least64_t = X__uint64_t /* types.h:59:20 */
+
+// quad_t is also 64 bits.
+type X__quad_t = int64    /* types.h:63:18 */
+type X__u_quad_t = uint64 /* types.h:64:27 */
+
+// Largest integral types.
+type X__intmax_t = int64   /* types.h:72:18 */
+type X__uintmax_t = uint64 /* types.h:73:27 */
+
+// The machine-dependent file <bits/typesizes.h> defines __*_T_TYPE
+//    macros for each of the OS types we define below.  The definitions
+//    of those macros must use the following macros for underlying types.
+//    We define __S<SIZE>_TYPE and __U<SIZE>_TYPE for the signed and unsigned
+//    variants of each of the following integer types on this machine.
+//
+// 	16		-- "natural" 16-bit type (always short)
+// 	32		-- "natural" 32-bit type (always int)
+// 	64		-- "natural" 64-bit type (long or long long)
+// 	LONG32		-- 32-bit type, traditionally long
+// 	QUAD		-- 64-bit type, traditionally long long
+// 	WORD		-- natural type of __WORDSIZE bits (int or long)
+// 	LONGWORD	-- type of __WORDSIZE bits, traditionally long
+//
+//    We distinguish WORD/LONGWORD, 32/LONG32, and 64/QUAD so that the
+//    conventional uses of `long' or `long long' type modifiers match the
+//    types we define, even when a less-adorned type would be the same size.
+//    This matters for (somewhat) portably writing printf/scanf formats for
+//    these types, where using the appropriate l or ll format modifiers can
+//    make the typedefs and the formats match up across all GNU platforms.  If
+//    we used `long' when it's 64 bits where `long long' is expected, then the
+//    compiler would warn about the formats not matching the argument types,
+//    and the programmer changing them to shut up the compiler would break the
+//    program's portability.
+//
+//    Here we assume what is presently the case in all the GCC configurations
+//    we support: long long is always 64 bits, long is always word/address size,
+//    and int is always 32 bits.
+
+// No need to mark the typedef with __extension__.
+// bits/typesizes.h -- underlying types for *_t.  For the generic Linux ABI.
+//    Copyright (C) 2011-2021 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//    Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+// See <bits/types.h> for the meaning of these macros.  This file exists so
+//    that <bits/types.h> need not vary across different GNU platforms.
+
+// Tell the libc code that off_t and off64_t are actually the same type
+//    for all ABI purposes, even if possibly expressed as different base types
+//    for C type-checking purposes.
+
+// Same for ino_t and ino64_t.
+
+// And for __rlim_t and __rlim64_t.
+
+// And for fsblkcnt_t, fsblkcnt64_t, fsfilcnt_t and fsfilcnt64_t.
+
+// And for getitimer, setitimer and rusage
+
+// Number of descriptors that can fit in an `fd_set'.
+
+// bits/time64.h -- underlying types for __time64_t.  RISC-V version.
+//    Copyright (C) 2020-2021 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Define __TIME64_T_TYPE so that it is always a 64-bit type.
+
+// If we already have 64-bit time type then use it.
+
+type X__dev_t = uint64                     /* types.h:145:25 */ // Type of device numbers.
+type X__uid_t = uint32                     /* types.h:146:25 */ // Type of user identifications.
+type X__gid_t = uint32                     /* types.h:147:25 */ // Type of group identifications.
+type X__ino_t = uint64                     /* types.h:148:25 */ // Type of file serial numbers.
+type X__ino64_t = uint64                   /* types.h:149:27 */ // Type of file serial numbers (LFS).
+type X__mode_t = uint32                    /* types.h:150:26 */ // Type of file attribute bitmasks.
+type X__nlink_t = uint32                   /* types.h:151:27 */ // Type of file link counts.
+type X__off_t = int64                      /* types.h:152:25 */ // Type of file sizes and offsets.
+type X__off64_t = int64                    /* types.h:153:27 */ // Type of file sizes and offsets (LFS).
+type X__pid_t = int32                      /* types.h:154:25 */ // Type of process identifications.
+type X__fsid_t = struct{ F__val [2]int32 } /* types.h:155:26 */ // Type of file system IDs.
+type X__clock_t = int64                    /* types.h:156:27 */ // Type of CPU usage counts.
+type X__rlim_t = uint64                    /* types.h:157:26 */ // Type for resource measurement.
+type X__rlim64_t = uint64                  /* types.h:158:28 */ // Type for resource measurement (LFS).
+type X__id_t = uint32                      /* types.h:159:24 */ // General type for IDs.
+type X__time_t = int64                     /* types.h:160:26 */ // Seconds since the Epoch.
+type X__useconds_t = uint32                /* types.h:161:30 */ // Count of microseconds.
+type X__suseconds_t = int64                /* types.h:162:31 */ // Signed count of microseconds.
+type X__suseconds64_t = int64              /* types.h:163:33 */
+
+type X__daddr_t = int32 /* types.h:165:27 */ // The type of a disk address.
+type X__key_t = int32   /* types.h:166:25 */ // Type of an IPC key.
+
+// Clock ID used in clock and timer functions.
+type X__clockid_t = int32 /* types.h:169:29 */
+
+// Timer ID returned by `timer_create'.
+type X__timer_t = uintptr /* types.h:172:12 */
+
+// Type to represent block size.
+type X__blksize_t = int32 /* types.h:175:29 */
+
+// Types from the Large File Support interface.
+
+// Type to count number of disk blocks.
+type X__blkcnt_t = int64   /* types.h:180:28 */
+type X__blkcnt64_t = int64 /* types.h:181:30 */
+
+// Type to count file system blocks.
+type X__fsblkcnt_t = uint64   /* types.h:184:30 */
+type X__fsblkcnt64_t = uint64 /* types.h:185:32 */
+
+// Type to count file system nodes.
+type X__fsfilcnt_t = uint64   /* types.h:188:30 */
+type X__fsfilcnt64_t = uint64 /* types.h:189:32 */
+
+// Type of miscellaneous file system fields.
+type X__fsword_t = int64 /* types.h:192:28 */
+
+type X__ssize_t = int64 /* types.h:194:27 */ // Type of a byte count, or error.
+
+// Signed long type used in system calls.
+type X__syscall_slong_t = int64 /* types.h:197:33 */
+// Unsigned long type used in system calls.
+type X__syscall_ulong_t = uint64 /* types.h:199:33 */
+
+// These few don't really vary by system, they always correspond
+//
+//	to one of the other defined types.
+type X__loff_t = X__off64_t /* types.h:203:19 */ // Type of file sizes and offsets (LFS).
+type X__caddr_t = uintptr   /* types.h:204:14 */
+
+// Duplicates info from stdint.h but this is used in unistd.h.
+type X__intptr_t = int64 /* types.h:207:25 */
+
+// Duplicate info from sys/socket.h.
+type X__socklen_t = uint32 /* types.h:210:23 */
+
+// C99: An integer type that can be accessed as an atomic entity,
+//
+//	even in the presence of asynchronous interrupts.
+//	It is not currently necessary for this to be machine-specific.
+type X__sig_atomic_t = int32 /* types.h:215:13 */
+
+// Seconds since the Epoch, visible to user code when time_t is too
+//    narrow only for consistency with the old way of widening too-narrow
+//    types.  User code should never use __time64_t.
+
+type Pid_t = X__pid_t /* termios.h:30:17 */
+
+// Get the system-dependent definitions of `struct termios', `tcflag_t',
+//    `cc_t', `speed_t', and all the macros specifying the flag bits.
+// termios type and macro definitions.  Linux version.
+//    Copyright (C) 1993-2021 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+type Cc_t = uint8      /* termios.h:23:23 */
+type Speed_t = uint32  /* termios.h:24:22 */
+type Tcflag_t = uint32 /* termios.h:25:22 */
+
+// struct termios definition.  Linux/generic version.
+//    Copyright (C) 2019-2021 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+type Termios = struct {
+	Fc_iflag     Tcflag_t
+	Fc_oflag     Tcflag_t
+	Fc_cflag     Tcflag_t
+	Fc_lflag     Tcflag_t
+	Fc_line      Cc_t
+	Fc_cc        [32]Cc_t
+	F__ccgo_pad1 [3]byte
+	Fc_ispeed    Speed_t
+	Fc_ospeed    Speed_t
+} /* termios-struct.h:24:1 */
+
+// -
+// Copyright (c) 1982, 1986, 1993
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttydefaults.h	8.4 (Berkeley) 1/21/94
+
+// System wide defaults for terminal state.  Linux version.
+
+// Defaults on "first" open.
+
+// Control Character Defaults
+// compat
+
+// PROTECTED INCLUSION ENDS HERE
+
+// #define TTYDEFCHARS to include an array of default control characters.
+
+var _ uint8 /* gen.c:2:13: */
diff --git a/vendor/modernc.org/libc/termios/termios_linux_s390x.go b/vendor/modernc.org/libc/termios/termios_linux_s390x.go
new file mode 100644
index 0000000..1ecfeab
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/termios_linux_s390x.go
@@ -0,0 +1,1023 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o termios/termios_linux_s390x.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+import (
+	"math"
+	"reflect"
+	"sync/atomic"
+	"unsafe"
+)
+
+var _ = math.Pi
+var _ reflect.Kind
+var _ atomic.Value
+var _ unsafe.Pointer
+
+const (
+	B0                             = 0000000
+	B1000000                       = 0010010
+	B110                           = 0000003
+	B115200                        = 0010002
+	B1152000                       = 0010011
+	B1200                          = 0000011
+	B134                           = 0000004
+	B150                           = 0000005
+	B1500000                       = 0010012
+	B1800                          = 0000012
+	B19200                         = 0000016
+	B200                           = 0000006
+	B2000000                       = 0010013
+	B230400                        = 0010003
+	B2400                          = 0000013
+	B2500000                       = 0010014
+	B300                           = 0000007
+	B3000000                       = 0010015
+	B3500000                       = 0010016
+	B38400                         = 0000017
+	B4000000                       = 0010017
+	B460800                        = 0010004
+	B4800                          = 0000014
+	B50                            = 0000001
+	B500000                        = 0010005
+	B57600                         = 0010001
+	B576000                        = 0010006
+	B600                           = 0000010
+	B75                            = 0000002
+	B921600                        = 0010007
+	B9600                          = 0000015
+	BRKINT                         = 0000002
+	BS0                            = 0000000
+	BS1                            = 0020000
+	BSDLY                          = 0020000
+	CBAUD                          = 000000010017
+	CBAUDEX                        = 000000010000
+	CBRK                           = 0
+	CDISCARD                       = 15
+	CDSUSP                         = 25
+	CEOF                           = 4
+	CEOL                           = 0
+	CEOT                           = 4
+	CERASE                         = 0177
+	CFLUSH                         = 15
+	CIBAUD                         = 002003600000
+	CINTR                          = 3
+	CKILL                          = 21
+	CLNEXT                         = 22
+	CLOCAL                         = 0004000
+	CMIN                           = 1
+	CMSPAR                         = 010000000000
+	CQUIT                          = 034
+	CR0                            = 0000000
+	CR1                            = 0001000
+	CR2                            = 0002000
+	CR3                            = 0003000
+	CRDLY                          = 0003000
+	CREAD                          = 0000200
+	CREPRINT                       = 18
+	CRPRNT                         = 18
+	CRTSCTS                        = 020000000000
+	CS5                            = 0000000
+	CS6                            = 0000020
+	CS7                            = 0000040
+	CS8                            = 0000060
+	CSIZE                          = 0000060
+	CSTART                         = 17
+	CSTATUS                        = 0
+	CSTOP                          = 19
+	CSTOPB                         = 0000100
+	CSUSP                          = 26
+	CTIME                          = 0
+	CWERASE                        = 23
+	ECHO                           = 0000010
+	ECHOCTL                        = 0001000
+	ECHOE                          = 0000020
+	ECHOK                          = 0000040
+	ECHOKE                         = 0004000
+	ECHONL                         = 0000100
+	ECHOPRT                        = 0002000
+	EXTA                           = 14
+	EXTB                           = 15
+	EXTPROC                        = 0200000
+	FF0                            = 0000000
+	FF1                            = 0100000
+	FFDLY                          = 0100000
+	FLUSHO                         = 0010000
+	HUPCL                          = 0002000
+	ICANON                         = 0000002
+	ICRNL                          = 0000400
+	IEXTEN                         = 0100000
+	IGNBRK                         = 0000001
+	IGNCR                          = 0000200
+	IGNPAR                         = 0000004
+	IMAXBEL                        = 0020000
+	INLCR                          = 0000100
+	INPCK                          = 0000020
+	ISIG                           = 0000001
+	ISTRIP                         = 0000040
+	IUCLC                          = 0001000
+	IUTF8                          = 0040000
+	IXANY                          = 0004000
+	IXOFF                          = 0010000
+	IXON                           = 0002000
+	NCCS                           = 32
+	NL0                            = 0000000
+	NL1                            = 0000400
+	NLDLY                          = 0000400
+	NOFLSH                         = 0000200
+	OCRNL                          = 0000010
+	OFDEL                          = 0000200
+	OFILL                          = 0000100
+	OLCUC                          = 0000002
+	ONLCR                          = 0000004
+	ONLRET                         = 0000040
+	ONOCR                          = 0000020
+	OPOST                          = 0000001
+	PARENB                         = 0000400
+	PARMRK                         = 0000010
+	PARODD                         = 0001000
+	PENDIN                         = 0040000
+	TAB0                           = 0000000
+	TAB1                           = 0004000
+	TAB2                           = 0010000
+	TAB3                           = 0014000
+	TABDLY                         = 0014000
+	TCIFLUSH                       = 0
+	TCIOFF                         = 2
+	TCIOFLUSH                      = 2
+	TCION                          = 3
+	TCOFLUSH                       = 1
+	TCOOFF                         = 0
+	TCOON                          = 1
+	TCSADRAIN                      = 1
+	TCSAFLUSH                      = 2
+	TCSANOW                        = 0
+	TIOCSER_TEMT                   = 0x01
+	TOSTOP                         = 0000400
+	TTYDEF_CFLAG                   = 1440
+	TTYDEF_IFLAG                   = 11554
+	TTYDEF_LFLAG                   = 35355
+	TTYDEF_OFLAG                   = 6149
+	TTYDEF_SPEED                   = 13
+	VDISCARD                       = 13
+	VEOF                           = 4
+	VEOL                           = 11
+	VEOL2                          = 16
+	VERASE                         = 2
+	VINTR                          = 0
+	VKILL                          = 3
+	VLNEXT                         = 15
+	VMIN                           = 6
+	VQUIT                          = 1
+	VREPRINT                       = 12
+	VSTART                         = 8
+	VSTOP                          = 9
+	VSUSP                          = 10
+	VSWTC                          = 7
+	VT0                            = 0000000
+	VT1                            = 0040000
+	VTDLY                          = 0040000
+	VTIME                          = 5
+	VWERASE                        = 14
+	XCASE                          = 0000004
+	XTABS                          = 0014000
+	X_ATFILE_SOURCE                = 1
+	X_BITS_TIME64_H                = 1
+	X_BITS_TYPESIZES_H             = 1
+	X_BITS_TYPES_H                 = 1
+	X_DEFAULT_SOURCE               = 1
+	X_FEATURES_H                   = 1
+	X_FILE_OFFSET_BITS             = 64
+	X_HAVE_STRUCT_TERMIOS_C_ISPEED = 1
+	X_HAVE_STRUCT_TERMIOS_C_OSPEED = 1
+	X_LP64                         = 1
+	X_POSIX_C_SOURCE               = 200809
+	X_POSIX_SOURCE                 = 1
+	X_STDC_PREDEF_H                = 1
+	X_SYS_CDEFS_H                  = 1
+	X_SYS_TTYDEFAULTS_H_           = 0
+	X_TERMIOS_H                    = 1
+	Linux                          = 1
+	Unix                           = 1
+)
+
+type Ptrdiff_t = int64 /* <builtin>:3:26 */
+
+type Size_t = uint64 /* <builtin>:9:23 */
+
+type Wchar_t = int32 /* <builtin>:15:24 */
+
+type X__int128_t = struct {
+	Flo int64
+	Fhi int64
+} /* <builtin>:21:43 */ // must match modernc.org/mathutil.Int128
+type X__uint128_t = struct {
+	Flo uint64
+	Fhi uint64
+} /* <builtin>:22:44 */ // must match modernc.org/mathutil.Int128
+
+type X__builtin_va_list = uintptr /* <builtin>:46:14 */
+type X__float128 = float64        /* <builtin>:47:21 */
+
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+//	POSIX Standard: 7.1-2 General Terminal Interface	<termios.h>
+
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// These are defined by the user (or the compiler)
+//    to specify the desired environment:
+//
+//    __STRICT_ANSI__	ISO Standard C.
+//    _ISOC99_SOURCE	Extensions to ISO C89 from ISO C99.
+//    _ISOC11_SOURCE	Extensions to ISO C99 from ISO C11.
+//    _ISOC2X_SOURCE	Extensions to ISO C99 from ISO C2X.
+//    __STDC_WANT_LIB_EXT2__
+// 			Extensions to ISO C99 from TR 27431-2:2010.
+//    __STDC_WANT_IEC_60559_BFP_EXT__
+// 			Extensions to ISO C11 from TS 18661-1:2014.
+//    __STDC_WANT_IEC_60559_FUNCS_EXT__
+// 			Extensions to ISO C11 from TS 18661-4:2015.
+//    __STDC_WANT_IEC_60559_TYPES_EXT__
+// 			Extensions to ISO C11 from TS 18661-3:2015.
+//
+//    _POSIX_SOURCE	IEEE Std 1003.1.
+//    _POSIX_C_SOURCE	If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2;
+// 			if >=199309L, add IEEE Std 1003.1b-1993;
+// 			if >=199506L, add IEEE Std 1003.1c-1995;
+// 			if >=200112L, all of IEEE 1003.1-2004
+// 			if >=200809L, all of IEEE 1003.1-2008
+//    _XOPEN_SOURCE	Includes POSIX and XPG things.  Set to 500 if
+// 			Single Unix conformance is wanted, to 600 for the
+// 			sixth revision, to 700 for the seventh revision.
+//    _XOPEN_SOURCE_EXTENDED XPG things and X/Open Unix extensions.
+//    _LARGEFILE_SOURCE	Some more functions for correct standard I/O.
+//    _LARGEFILE64_SOURCE	Additional functionality from LFS for large files.
+//    _FILE_OFFSET_BITS=N	Select default filesystem interface.
+//    _ATFILE_SOURCE	Additional *at interfaces.
+//    _GNU_SOURCE		All of the above, plus GNU extensions.
+//    _DEFAULT_SOURCE	The default set of features (taking precedence over
+// 			__STRICT_ANSI__).
+//
+//    _FORTIFY_SOURCE	Add security hardening to many library functions.
+// 			Set to 1 or 2; 2 performs stricter checks than 1.
+//
+//    _REENTRANT, _THREAD_SAFE
+// 			Obsolete; equivalent to _POSIX_C_SOURCE=199506L.
+//
+//    The `-ansi' switch to the GNU C compiler, and standards conformance
+//    options such as `-std=c99', define __STRICT_ANSI__.  If none of
+//    these are defined, or if _DEFAULT_SOURCE is defined, the default is
+//    to have _POSIX_SOURCE set to one and _POSIX_C_SOURCE set to
+//    200809L, as well as enabling miscellaneous functions from BSD and
+//    SVID.  If more than one of these are defined, they accumulate.  For
+//    example __STRICT_ANSI__, _POSIX_SOURCE and _POSIX_C_SOURCE together
+//    give you ISO C, 1003.1, and 1003.2, but nothing else.
+//
+//    These are defined by this file and are used by the
+//    header files to decide what to declare or define:
+//
+//    __GLIBC_USE (F)	Define things from feature set F.  This is defined
+// 			to 1 or 0; the subsequent macros are either defined
+// 			or undefined, and those tests should be moved to
+// 			__GLIBC_USE.
+//    __USE_ISOC11		Define ISO C11 things.
+//    __USE_ISOC99		Define ISO C99 things.
+//    __USE_ISOC95		Define ISO C90 AMD1 (C95) things.
+//    __USE_ISOCXX11	Define ISO C++11 things.
+//    __USE_POSIX		Define IEEE Std 1003.1 things.
+//    __USE_POSIX2		Define IEEE Std 1003.2 things.
+//    __USE_POSIX199309	Define IEEE Std 1003.1, and .1b things.
+//    __USE_POSIX199506	Define IEEE Std 1003.1, .1b, .1c and .1i things.
+//    __USE_XOPEN		Define XPG things.
+//    __USE_XOPEN_EXTENDED	Define X/Open Unix things.
+//    __USE_UNIX98		Define Single Unix V2 things.
+//    __USE_XOPEN2K        Define XPG6 things.
+//    __USE_XOPEN2KXSI     Define XPG6 XSI things.
+//    __USE_XOPEN2K8       Define XPG7 things.
+//    __USE_XOPEN2K8XSI    Define XPG7 XSI things.
+//    __USE_LARGEFILE	Define correct standard I/O things.
+//    __USE_LARGEFILE64	Define LFS things with separate names.
+//    __USE_FILE_OFFSET64	Define 64bit interface as default.
+//    __USE_MISC		Define things from 4.3BSD or System V Unix.
+//    __USE_ATFILE		Define *at interfaces and AT_* constants for them.
+//    __USE_GNU		Define GNU extensions.
+//    __USE_FORTIFY_LEVEL	Additional security measures used, according to level.
+//
+//    The macros `__GNU_LIBRARY__', `__GLIBC__', and `__GLIBC_MINOR__' are
+//    defined by this file unconditionally.  `__GNU_LIBRARY__' is provided
+//    only for compatibility.  All new code should use the other symbols
+//    to test for features.
+//
+//    All macros listed above as possibly being defined by this file are
+//    explicitly undefined if they are not explicitly defined.
+//    Feature-test macros that are not defined by the user or compiler
+//    but are implied by the other feature-test macros defined (or by the
+//    lack of any definitions) are defined by the file.
+//
+//    ISO C feature test macros depend on the definition of the macro
+//    when an affected header is included, not when the first system
+//    header is included, and so they are handled in
+//    <bits/libc-header-start.h>, which does not have a multiple include
+//    guard.  Feature test macros that can be handled from the first
+//    system header included are handled here.
+
+// Undefine everything, so we get a clean slate.
+
+// Suppress kernel-name space pollution unless user expressedly asks
+//    for it.
+
+// Convenience macro to test the version of gcc.
+//    Use like this:
+//    #if __GNUC_PREREQ (2,8)
+//    ... code requiring gcc 2.8 or later ...
+//    #endif
+//    Note: only works for GCC 2.0 and later, because __GNUC_MINOR__ was
+//    added in 2.0.
+
+// Similarly for clang.  Features added to GCC after version 4.2 may
+//    or may not also be available in clang, and clang's definitions of
+//    __GNUC(_MINOR)__ are fixed at 4 and 2 respectively.  Not all such
+//    features can be queried via __has_extension/__has_feature.
+
+// Whether to use feature set F.
+
+// _BSD_SOURCE and _SVID_SOURCE are deprecated aliases for
+//    _DEFAULT_SOURCE.  If _DEFAULT_SOURCE is present we do not
+//    issue a warning; the expectation is that the source is being
+//    transitioned to use the new macro.
+
+// If _GNU_SOURCE was defined by the user, turn on all the other features.
+
+// If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined,
+//    define _DEFAULT_SOURCE.
+
+// This is to enable the ISO C2X extension.
+
+// This is to enable the ISO C11 extension.
+
+// This is to enable the ISO C99 extension.
+
+// This is to enable the ISO C90 Amendment 1:1995 extension.
+
+// If none of the ANSI/POSIX macros are defined, or if _DEFAULT_SOURCE
+//    is defined, use POSIX.1-2008 (or another version depending on
+//    _XOPEN_SOURCE).
+
+// Some C libraries once required _REENTRANT and/or _THREAD_SAFE to be
+//    defined in all multithreaded code.  GNU libc has not required this
+//    for many years.  We now treat them as compatibility synonyms for
+//    _POSIX_C_SOURCE=199506L, which is the earliest level of POSIX with
+//    comprehensive support for multithreaded code.  Using them never
+//    lowers the selected level of POSIX conformance, only raises it.
+
+// The function 'gets' existed in C89, but is impossible to use
+//    safely.  It has been removed from ISO C11 and ISO C++14.  Note: for
+//    compatibility with various implementations of <cstdio>, this test
+//    must consider only the value of __cplusplus when compiling C++.
+
+// GNU formerly extended the scanf functions with modified format
+//    specifiers %as, %aS, and %a[...] that allocate a buffer for the
+//    input using malloc.  This extension conflicts with ISO C99, which
+//    defines %a as a standalone format specifier that reads a floating-
+//    point number; moreover, POSIX.1-2008 provides the same feature
+//    using the modifier letter 'm' instead (%ms, %mS, %m[...]).
+//
+//    We now follow C99 unless GNU extensions are active and the compiler
+//    is specifically in C89 or C++98 mode (strict or not).  For
+//    instance, with GCC, -std=gnu11 will have C99-compliant scanf with
+//    or without -D_GNU_SOURCE, but -std=c89 -D_GNU_SOURCE will have the
+//    old extension.
+
+// Get definitions of __STDC_* predefined macros, if the compiler has
+//    not preincluded this header automatically.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// This macro indicates that the installed library is the GNU C Library.
+//    For historic reasons the value now is 6 and this will stay from now
+//    on.  The use of this variable is deprecated.  Use __GLIBC__ and
+//    __GLIBC_MINOR__ now (see below) when you want to test for a specific
+//    GNU C library version and use the values in <gnu/lib-names.h> to get
+//    the sonames of the shared libraries.
+
+// Major and minor version number of the GNU C library package.  Use
+//    these macros to test for features in specific releases.
+
+// This is here only because every header file already includes this one.
+// Copyright (C) 1992-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// We are almost always included from features.h.
+
+// The GNU libc does not support any K&R compilers or the traditional mode
+//    of ISO C compilers anymore.  Check for some of the combinations not
+//    anymore supported.
+
+// Some user header file might have defined this before.
+
+// All functions, except those with callbacks or those that
+//    synchronize memory, are leaf functions.
+
+// GCC can always grok prototypes.  For C++ programs we add throw()
+//    to help it optimize the function calls.  But this works only with
+//    gcc 2.8.x and egcs.  For gcc 3.2 and up we even mark C functions
+//    as non-throwing using a function attribute since programs can use
+//    the -fexceptions options for C code as well.
+
+// Compilers that are not clang may object to
+//        #if defined __clang__ && __has_extension(...)
+//    even though they do not need to evaluate the right-hand side of the &&.
+
+// These two macros are not used in glibc anymore.  They are kept here
+//    only because some other projects expect the macros to be defined.
+
+// For these things, GCC behaves the ANSI way normally,
+//    and the non-ANSI way under -traditional.
+
+// This is not a typedef so `const __ptr_t' does the right thing.
+
+// C++ needs to know that types and declarations are C, not C++.
+
+// Fortify support.
+
+// Support for flexible arrays.
+//    Headers that should use flexible arrays only if they're "real"
+//    (e.g. only if they won't affect sizeof()) should test
+//    #if __glibc_c99_flexarr_available.
+
+// __asm__ ("xyz") is used throughout the headers to rename functions
+//    at the assembly language level.  This is wrapped by the __REDIRECT
+//    macro, in order to support compilers that can do this some other
+//    way.  When compilers don't support asm-names at all, we have to do
+//    preprocessor tricks instead (which don't have exactly the right
+//    semantics, but it's the best we can do).
+//
+//    Example:
+//    int __REDIRECT(setpgrp, (__pid_t pid, __pid_t pgrp), setpgid);
+
+//
+// #elif __SOME_OTHER_COMPILER__
+//
+// # define __REDIRECT(name, proto, alias) name proto; 	_Pragma("let " #name " = " #alias)
+
+// GCC has various useful declarations that can be made with the
+//    `__attribute__' syntax.  All of the ways we use this do fine if
+//    they are omitted for compilers that don't understand it.
+
+// At some point during the gcc 2.96 development the `malloc' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// Tell the compiler which arguments to an allocation function
+//    indicate the size of the allocation.
+
+// At some point during the gcc 2.96 development the `pure' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// This declaration tells the compiler that the value is constant.
+
+// At some point during the gcc 3.1 development the `used' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// Since version 3.2, gcc allows marking deprecated functions.
+
+// Since version 4.5, gcc also allows one to specify the message printed
+//    when a deprecated function is used.  clang claims to be gcc 4.2, but
+//    may also support this feature.
+
+// At some point during the gcc 2.8 development the `format_arg' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+//    If several `format_arg' attributes are given for the same function, in
+//    gcc-3.0 and older, all but the last one are ignored.  In newer gccs,
+//    all designated arguments are considered.
+
+// At some point during the gcc 2.97 development the `strfmon' format
+//    attribute for functions was introduced.  We don't want to use it
+//    unconditionally (although this would be possible) since it
+//    generates warnings.
+
+// The nonull function attribute allows to mark pointer parameters which
+//    must not be NULL.
+
+// If fortification mode, we warn about unused results of certain
+//    function calls which can lead to problems.
+
+// Forces a function to be always inlined.
+// The Linux kernel defines __always_inline in stddef.h (283d7573), and
+//    it conflicts with this definition.  Therefore undefine it first to
+//    allow either header to be included first.
+
+// Associate error messages with the source location of the call site rather
+//    than with the source location inside the function.
+
+// GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99
+//    inline semantics, unless -fgnu89-inline is used.  Using __GNUC_STDC_INLINE__
+//    or __GNUC_GNU_INLINE is not a good enough check for gcc because gcc versions
+//    older than 4.3 may define these macros and still not guarantee GNU inlining
+//    semantics.
+//
+//    clang++ identifies itself as gcc-4.2, but has support for GNU inlining
+//    semantics, that can be checked for by using the __GNUC_STDC_INLINE_ and
+//    __GNUC_GNU_INLINE__ macro definitions.
+
+// GCC 4.3 and above allow passing all anonymous arguments of an
+//    __extern_always_inline function to some other vararg function.
+
+// It is possible to compile containing GCC extensions even if GCC is
+//    run in pedantic mode if the uses are carefully marked using the
+//    `__extension__' keyword.  But this is not generally available before
+//    version 2.8.
+
+// __restrict is known in EGCS 1.2 and above.
+
+// ISO C99 also allows to declare arrays as non-overlapping.  The syntax is
+//      array_name[restrict]
+//    GCC 3.1 supports this.
+
+// Describes a char array whose address can safely be passed as the first
+//    argument to strncpy and strncat, as the char array is not necessarily
+//    a NUL-terminated string.
+
+// Undefine (also defined in libc-symbols.h).
+// Copies attributes from the declaration or type referenced by
+//    the argument.
+
+// Determine the wordsize from the preprocessor defines.
+
+// Properties of long double type.  ldbl-opt version.
+//    Copyright (C) 2016-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License  published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// __glibc_macro_warning (MESSAGE) issues warning MESSAGE.  This is
+//    intended for use in preprocessor macros.
+//
+//    Note: MESSAGE must be a _single_ string; concatenation of string
+//    literals is not supported.
+
+// Generic selection (ISO C11) is a C-only feature, available in GCC
+//    since version 4.9.  Previous versions do not provide generic
+//    selection, even though they might set __STDC_VERSION__ to 201112L,
+//    when in -std=c11 mode.  Thus, we must check for !defined __GNUC__
+//    when testing __STDC_VERSION__ for generic selection support.
+//    On the other hand, Clang also defines __GNUC__, so a clang-specific
+//    check is required to enable the use of generic selection.
+
+// If we don't have __REDIRECT, prototypes will be missing if
+//    __USE_FILE_OFFSET64 but not __USE_LARGEFILE[64].
+
+// Decide whether we can define 'extern inline' functions in headers.
+
+// This is here only because every header file already includes this one.
+//    Get the definitions of all the appropriate `__stub_FUNCTION' symbols.
+//    <gnu/stubs.h> contains `#define __stub_FUNCTION' when FUNCTION is a stub
+//    that will always return failure (and set errno to ENOSYS).
+// This file is automatically generated.
+//    This file selects the right generated file of `__stub_FUNCTION' macros
+//    based on the architecture being compiled for.
+
+// Determine the wordsize from the preprocessor defines.
+
+// This file is automatically generated.
+//    It defines a symbol `__stub_FUNCTION' for each function
+//    in the C library which is a stub, meaning it will fail
+//    every time called, usually setting errno to ENOSYS.
+
+// We need `pid_t'.
+// bits/types.h -- definitions of __*_t types underlying *_t types.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Never include this file directly; use <sys/types.h> instead.
+
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Determine the wordsize from the preprocessor defines.
+
+// Bit size of the time_t type at glibc build time, general case.
+//    Copyright (C) 2018-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Determine the wordsize from the preprocessor defines.
+
+// Size in bits of the 'time_t' type of the default ABI.
+
+// Convenience types.
+type X__u_char = uint8   /* types.h:31:23 */
+type X__u_short = uint16 /* types.h:32:28 */
+type X__u_int = uint32   /* types.h:33:22 */
+type X__u_long = uint64  /* types.h:34:27 */
+
+// Fixed-size types, underlying types depend on word size and compiler.
+type X__int8_t = int8     /* types.h:37:21 */
+type X__uint8_t = uint8   /* types.h:38:23 */
+type X__int16_t = int16   /* types.h:39:26 */
+type X__uint16_t = uint16 /* types.h:40:28 */
+type X__int32_t = int32   /* types.h:41:20 */
+type X__uint32_t = uint32 /* types.h:42:22 */
+type X__int64_t = int64   /* types.h:44:25 */
+type X__uint64_t = uint64 /* types.h:45:27 */
+
+// Smallest types with at least a given width.
+type X__int_least8_t = X__int8_t     /* types.h:52:18 */
+type X__uint_least8_t = X__uint8_t   /* types.h:53:19 */
+type X__int_least16_t = X__int16_t   /* types.h:54:19 */
+type X__uint_least16_t = X__uint16_t /* types.h:55:20 */
+type X__int_least32_t = X__int32_t   /* types.h:56:19 */
+type X__uint_least32_t = X__uint32_t /* types.h:57:20 */
+type X__int_least64_t = X__int64_t   /* types.h:58:19 */
+type X__uint_least64_t = X__uint64_t /* types.h:59:20 */
+
+// quad_t is also 64 bits.
+type X__quad_t = int64    /* types.h:63:18 */
+type X__u_quad_t = uint64 /* types.h:64:27 */
+
+// Largest integral types.
+type X__intmax_t = int64   /* types.h:72:18 */
+type X__uintmax_t = uint64 /* types.h:73:27 */
+
+// The machine-dependent file <bits/typesizes.h> defines __*_T_TYPE
+//    macros for each of the OS types we define below.  The definitions
+//    of those macros must use the following macros for underlying types.
+//    We define __S<SIZE>_TYPE and __U<SIZE>_TYPE for the signed and unsigned
+//    variants of each of the following integer types on this machine.
+//
+// 	16		-- "natural" 16-bit type (always short)
+// 	32		-- "natural" 32-bit type (always int)
+// 	64		-- "natural" 64-bit type (long or long long)
+// 	LONG32		-- 32-bit type, traditionally long
+// 	QUAD		-- 64-bit type, traditionally long long
+// 	WORD		-- natural type of __WORDSIZE bits (int or long)
+// 	LONGWORD	-- type of __WORDSIZE bits, traditionally long
+//
+//    We distinguish WORD/LONGWORD, 32/LONG32, and 64/QUAD so that the
+//    conventional uses of `long' or `long long' type modifiers match the
+//    types we define, even when a less-adorned type would be the same size.
+//    This matters for (somewhat) portably writing printf/scanf formats for
+//    these types, where using the appropriate l or ll format modifiers can
+//    make the typedefs and the formats match up across all GNU platforms.  If
+//    we used `long' when it's 64 bits where `long long' is expected, then the
+//    compiler would warn about the formats not matching the argument types,
+//    and the programmer changing them to shut up the compiler would break the
+//    program's portability.
+//
+//    Here we assume what is presently the case in all the GCC configurations
+//    we support: long long is always 64 bits, long is always word/address size,
+//    and int is always 32 bits.
+
+// No need to mark the typedef with __extension__.
+// bits/typesizes.h -- underlying types for *_t.  Linux/s390 version.
+//    Copyright (C) 2003-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// See <bits/types.h> for the meaning of these macros.  This file exists so
+//    that <bits/types.h> need not vary across different GNU platforms.
+
+// size_t is unsigned long int on s390 -m31.
+
+// Tell the libc code that off_t and off64_t are actually the same type
+//    for all ABI purposes, even if possibly expressed as different base types
+//    for C type-checking purposes.
+
+// Same for ino_t and ino64_t.
+
+// And for __rlim_t and __rlim64_t.
+
+// And for fsblkcnt_t, fsblkcnt64_t, fsfilcnt_t and fsfilcnt64_t.
+
+// Number of descriptors that can fit in an `fd_set'.
+
+// bits/time64.h -- underlying types for __time64_t.  Generic version.
+//    Copyright (C) 2018-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Define __TIME64_T_TYPE so that it is always a 64-bit type.
+
+// If we already have 64-bit time type then use it.
+
+type X__dev_t = uint64                     /* types.h:145:25 */ // Type of device numbers.
+type X__uid_t = uint32                     /* types.h:146:25 */ // Type of user identifications.
+type X__gid_t = uint32                     /* types.h:147:25 */ // Type of group identifications.
+type X__ino_t = uint64                     /* types.h:148:25 */ // Type of file serial numbers.
+type X__ino64_t = uint64                   /* types.h:149:27 */ // Type of file serial numbers (LFS).
+type X__mode_t = uint32                    /* types.h:150:26 */ // Type of file attribute bitmasks.
+type X__nlink_t = uint64                   /* types.h:151:27 */ // Type of file link counts.
+type X__off_t = int64                      /* types.h:152:25 */ // Type of file sizes and offsets.
+type X__off64_t = int64                    /* types.h:153:27 */ // Type of file sizes and offsets (LFS).
+type X__pid_t = int32                      /* types.h:154:25 */ // Type of process identifications.
+type X__fsid_t = struct{ F__val [2]int32 } /* types.h:155:26 */ // Type of file system IDs.
+type X__clock_t = int64                    /* types.h:156:27 */ // Type of CPU usage counts.
+type X__rlim_t = uint64                    /* types.h:157:26 */ // Type for resource measurement.
+type X__rlim64_t = uint64                  /* types.h:158:28 */ // Type for resource measurement (LFS).
+type X__id_t = uint32                      /* types.h:159:24 */ // General type for IDs.
+type X__time_t = int64                     /* types.h:160:26 */ // Seconds since the Epoch.
+type X__useconds_t = uint32                /* types.h:161:30 */ // Count of microseconds.
+type X__suseconds_t = int64                /* types.h:162:31 */ // Signed count of microseconds.
+
+type X__daddr_t = int32 /* types.h:164:27 */ // The type of a disk address.
+type X__key_t = int32   /* types.h:165:25 */ // Type of an IPC key.
+
+// Clock ID used in clock and timer functions.
+type X__clockid_t = int32 /* types.h:168:29 */
+
+// Timer ID returned by `timer_create'.
+type X__timer_t = uintptr /* types.h:171:12 */
+
+// Type to represent block size.
+type X__blksize_t = int64 /* types.h:174:29 */
+
+// Types from the Large File Support interface.
+
+// Type to count number of disk blocks.
+type X__blkcnt_t = int64   /* types.h:179:28 */
+type X__blkcnt64_t = int64 /* types.h:180:30 */
+
+// Type to count file system blocks.
+type X__fsblkcnt_t = uint64   /* types.h:183:30 */
+type X__fsblkcnt64_t = uint64 /* types.h:184:32 */
+
+// Type to count file system nodes.
+type X__fsfilcnt_t = uint64   /* types.h:187:30 */
+type X__fsfilcnt64_t = uint64 /* types.h:188:32 */
+
+// Type of miscellaneous file system fields.
+type X__fsword_t = int64 /* types.h:191:28 */
+
+type X__ssize_t = int64 /* types.h:193:27 */ // Type of a byte count, or error.
+
+// Signed long type used in system calls.
+type X__syscall_slong_t = int64 /* types.h:196:33 */
+// Unsigned long type used in system calls.
+type X__syscall_ulong_t = uint64 /* types.h:198:33 */
+
+// These few don't really vary by system, they always correspond
+//
+//	to one of the other defined types.
+type X__loff_t = X__off64_t /* types.h:202:19 */ // Type of file sizes and offsets (LFS).
+type X__caddr_t = uintptr   /* types.h:203:14 */
+
+// Duplicates info from stdint.h but this is used in unistd.h.
+type X__intptr_t = int64 /* types.h:206:25 */
+
+// Duplicate info from sys/socket.h.
+type X__socklen_t = uint32 /* types.h:209:23 */
+
+// C99: An integer type that can be accessed as an atomic entity,
+//
+//	even in the presence of asynchronous interrupts.
+//	It is not currently necessary for this to be machine-specific.
+type X__sig_atomic_t = int32 /* types.h:214:13 */
+
+// Seconds since the Epoch, visible to user code when time_t is too
+//    narrow only for consistency with the old way of widening too-narrow
+//    types.  User code should never use __time64_t.
+
+type Pid_t = X__pid_t /* termios.h:30:17 */
+
+// Get the system-dependent definitions of `struct termios', `tcflag_t',
+//    `cc_t', `speed_t', and all the macros specifying the flag bits.
+// termios type and macro definitions.  Linux version.
+//    Copyright (C) 1993-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+type Cc_t = uint8      /* termios.h:23:23 */
+type Speed_t = uint32  /* termios.h:24:22 */
+type Tcflag_t = uint32 /* termios.h:25:22 */
+
+// struct termios definition.  Linux/generic version.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library.  If not, see
+//    <https://www.gnu.org/licenses/>.
+
+type Termios = struct {
+	Fc_iflag     Tcflag_t
+	Fc_oflag     Tcflag_t
+	Fc_cflag     Tcflag_t
+	Fc_lflag     Tcflag_t
+	Fc_line      Cc_t
+	Fc_cc        [32]Cc_t
+	F__ccgo_pad1 [3]byte
+	Fc_ispeed    Speed_t
+	Fc_ospeed    Speed_t
+} /* termios-struct.h:24:1 */
+
+// -
+// Copyright (c) 1982, 1986, 1993
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 4. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttydefaults.h	8.4 (Berkeley) 1/21/94
+
+// System wide defaults for terminal state.  Linux version.
+
+// Defaults on "first" open.
+
+// Control Character Defaults
+// compat
+
+// PROTECTED INCLUSION ENDS HERE
+
+// #define TTYDEFCHARS to include an array of default control characters.
+
+var _ uint8 /* gen.c:2:13: */
diff --git a/vendor/modernc.org/libc/termios/termios_netbsd_amd64.go b/vendor/modernc.org/libc/termios/termios_netbsd_amd64.go
new file mode 100644
index 0000000..a2e82b7
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/termios_netbsd_amd64.go
@@ -0,0 +1,733 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_netbsd_amd64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+import (
+	"math"
+	"reflect"
+	"sync/atomic"
+	"unsafe"
+)
+
+var _ = math.Pi
+var _ reflect.Kind
+var _ atomic.Value
+var _ unsafe.Pointer
+
+const (
+	ALTWERASE                 = 0x00000200 // termios.h:174:1:
+	ARG_MAX                   = 262144     // syslimits.h:45:1:
+	B0                        = 0          // termios.h:215:1:
+	B1000000                  = 1000000    // termios.h:242:1:
+	B110                      = 110        // termios.h:218:1:
+	B115200                   = 115200     // termios.h:237:1:
+	B1200                     = 1200       // termios.h:224:1:
+	B134                      = 134        // termios.h:219:1:
+	B14400                    = 14400      // termios.h:233:1:
+	B150                      = 150        // termios.h:220:1:
+	B1500000                  = 1500000    // termios.h:243:1:
+	B1800                     = 1800       // termios.h:225:1:
+	B19200                    = 19200      // termios.h:229:1:
+	B200                      = 200        // termios.h:221:1:
+	B2000000                  = 2000000    // termios.h:244:1:
+	B230400                   = 230400     // termios.h:238:1:
+	B2400                     = 2400       // termios.h:226:1:
+	B2500000                  = 2500000    // termios.h:245:1:
+	B28800                    = 28800      // termios.h:234:1:
+	B300                      = 300        // termios.h:222:1:
+	B3000000                  = 3000000    // termios.h:246:1:
+	B3500000                  = 3500000    // termios.h:247:1:
+	B38400                    = 38400      // termios.h:230:1:
+	B4000000                  = 4000000    // termios.h:248:1:
+	B460800                   = 460800     // termios.h:239:1:
+	B4800                     = 4800       // termios.h:227:1:
+	B50                       = 50         // termios.h:216:1:
+	B500000                   = 500000     // termios.h:240:1:
+	B57600                    = 57600      // termios.h:235:1:
+	B600                      = 600        // termios.h:223:1:
+	B7200                     = 7200       // termios.h:232:1:
+	B75                       = 75         // termios.h:217:1:
+	B76800                    = 76800      // termios.h:236:1:
+	B921600                   = 921600     // termios.h:241:1:
+	B9600                     = 9600       // termios.h:228:1:
+	BC_DIM_MAX                = 65535      // syslimits.h:64:1:
+	BRKINT                    = 0x00000002 // termios.h:91:1:
+	CCTS_OFLOW                = 65536      // termios.h:145:1:
+	CDISCARD                  = 15         // ttydefaults.h:72:1:
+	CDSUSP                    = 25         // ttydefaults.h:68:1:
+	CDTRCTS                   = 0x00020000 // termios.h:146:1:
+	CEOF                      = 4          // ttydefaults.h:58:1:
+	CEOT                      = 4          // ttydefaults.h:75:1:
+	CERASE                    = 0177       // ttydefaults.h:60:1:
+	CFLUSH                    = 15         // ttydefaults.h:79:1:
+	CHILD_MAX                 = 160        // syslimits.h:47:1:
+	CHWFLOW                   = 1245184    // termios.h:148:1:
+	CIGNORE                   = 0x00000001 // termios.h:129:1:
+	CINTR                     = 3          // ttydefaults.h:61:1:
+	CKILL                     = 21         // ttydefaults.h:63:1:
+	CLNEXT                    = 22         // ttydefaults.h:71:1:
+	CLOCAL                    = 0x00008000 // termios.h:141:1:
+	CMIN                      = 1          // ttydefaults.h:64:1:
+	COLL_WEIGHTS_MAX          = 2          // syslimits.h:67:1:
+	CQUIT                     = 034        // ttydefaults.h:65:1:
+	CREAD                     = 0x00000800 // termios.h:137:1:
+	CREPRINT                  = 18         // ttydefaults.h:74:1:
+	CRPRNT                    = 18         // ttydefaults.h:78:1:
+	CRTSCTS                   = 0x00010000 // termios.h:143:1:
+	CRTS_IFLOW                = 65536      // termios.h:144:1:
+	CS5                       = 0x00000000 // termios.h:132:1:
+	CS6                       = 0x00000100 // termios.h:133:1:
+	CS7                       = 0x00000200 // termios.h:134:1:
+	CS8                       = 0x00000300 // termios.h:135:1:
+	CSIZE                     = 0x00000300 // termios.h:131:1:
+	CSTART                    = 17         // ttydefaults.h:69:1:
+	CSTATUS                   = 20         // ttydefaults.h:62:1:
+	CSTOP                     = 19         // ttydefaults.h:70:1:
+	CSTOPB                    = 0x00000400 // termios.h:136:1:
+	CSUSP                     = 26         // ttydefaults.h:66:1:
+	CTIME                     = 0          // ttydefaults.h:67:1:
+	CWERASE                   = 23         // ttydefaults.h:73:1:
+	ECHO                      = 0x00000008 // termios.h:165:1:
+	ECHOCTL                   = 0x00000040 // termios.h:169:1:
+	ECHOE                     = 0x00000002 // termios.h:163:1:
+	ECHOK                     = 0x00000004 // termios.h:164:1:
+	ECHOKE                    = 0x00000001 // termios.h:161:1:
+	ECHONL                    = 0x00000010 // termios.h:166:1:
+	ECHOPRT                   = 0x00000020 // termios.h:168:1:
+	EXPR_NEST_MAX             = 32         // syslimits.h:68:1:
+	EXTA                      = 19200      // termios.h:249:1:
+	EXTB                      = 38400      // termios.h:250:1:
+	EXTPROC                   = 0x00000800 // termios.h:178:1:
+	FLUSHO                    = 0x00800000 // termios.h:182:1:
+	GID_MAX                   = 2147483647 // syslimits.h:49:1:
+	HDLCDISC                  = 9          // ttycom.h:177:1:
+	HUPCL                     = 0x00004000 // termios.h:140:1:
+	ICANON                    = 0x00000100 // termios.h:172:1:
+	ICRNL                     = 0x00000100 // termios.h:98:1:
+	IEXTEN                    = 0x00000400 // termios.h:176:1:
+	IGNBRK                    = 0x00000001 // termios.h:90:1:
+	IGNCR                     = 0x00000080 // termios.h:97:1:
+	IGNPAR                    = 0x00000004 // termios.h:92:1:
+	IMAXBEL                   = 0x00002000 // termios.h:105:1:
+	INLCR                     = 0x00000040 // termios.h:96:1:
+	INPCK                     = 0x00000010 // termios.h:94:1:
+	IOCGROUP_SHIFT            = 8          // ioccom.h:49:1:
+	IOCPARM_MASK              = 0x1fff     // ioccom.h:47:1:
+	IOCPARM_SHIFT             = 16         // ioccom.h:48:1:
+	IOV_MAX                   = 1024       // syslimits.h:84:1:
+	ISIG                      = 0x00000080 // termios.h:171:1:
+	ISTRIP                    = 0x00000020 // termios.h:95:1:
+	IXANY                     = 0x00000800 // termios.h:102:1:
+	IXOFF                     = 0x00000400 // termios.h:100:1:
+	IXON                      = 0x00000200 // termios.h:99:1:
+	LINE_MAX                  = 2048       // syslimits.h:69:1:
+	LINK_MAX                  = 32767      // syslimits.h:50:1:
+	LOGIN_NAME_MAX            = 17         // syslimits.h:77:1:
+	MAX_CANON                 = 255        // syslimits.h:51:1:
+	MAX_INPUT                 = 255        // syslimits.h:52:1:
+	MDMBUF                    = 0x00100000 // termios.h:147:1:
+	NAME_MAX                  = 511        // syslimits.h:53:1:
+	NCCS                      = 20         // termios.h:79:1:
+	NGROUPS_MAX               = 16         // syslimits.h:55:1:
+	NOFLSH                    = 0x80000000 // termios.h:186:1:
+	NOKERNINFO                = 0x02000000 // termios.h:183:1:
+	NZERO                     = 20         // syslimits.h:85:1:
+	OCRNL                     = 0x00000010 // termios.h:120:1:
+	ONLCR                     = 0x00000002 // termios.h:113:1:
+	ONLRET                    = 0x00000040 // termios.h:122:1:
+	ONOCR                     = 0x00000020 // termios.h:121:1:
+	ONOEOT                    = 0x00000008 // termios.h:117:1:
+	OPEN_MAX                  = 128        // syslimits.h:58:1:
+	OPOST                     = 0x00000001 // termios.h:111:1:
+	OXTABS                    = 0x00000004 // termios.h:116:1:
+	PARENB                    = 0x00001000 // termios.h:138:1:
+	PARMRK                    = 0x00000008 // termios.h:93:1:
+	PARODD                    = 0x00002000 // termios.h:139:1:
+	PATH_MAX                  = 1024       // syslimits.h:60:1:
+	PENDIN                    = 0x20000000 // termios.h:184:1:
+	PIPE_BUF                  = 512        // syslimits.h:61:1:
+	PPPDISC                   = 5          // ttycom.h:175:1:
+	RE_DUP_MAX                = 255        // syslimits.h:70:1:
+	SLIPDISC                  = 4          // ttycom.h:174:1:
+	STRIPDISC                 = 6          // ttycom.h:176:1:
+	TABLDISC                  = 3          // ttycom.h:173:1:
+	TCIFLUSH                  = 1          // termios.h:255:1:
+	TCIOFF                    = 3          // termios.h:260:1:
+	TCIOFLUSH                 = 3          // termios.h:257:1:
+	TCION                     = 4          // termios.h:261:1:
+	TCOFLUSH                  = 2          // termios.h:256:1:
+	TCOOFF                    = 1          // termios.h:258:1:
+	TCOON                     = 2          // termios.h:259:1:
+	TCSADRAIN                 = 1          // termios.h:206:1:
+	TCSAFLUSH                 = 2          // termios.h:207:1:
+	TCSANOW                   = 0          // termios.h:205:1:
+	TCSASOFT                  = 0x10       // termios.h:209:1:
+	TIOCFLAG_CDTRCTS          = 0x10       // ttycom.h:158:1:
+	TIOCFLAG_CLOCAL           = 0x02       // ttycom.h:155:1:
+	TIOCFLAG_CRTSCTS          = 0x04       // ttycom.h:156:1:
+	TIOCFLAG_MDMBUF           = 0x08       // ttycom.h:157:1:
+	TIOCFLAG_SOFTCAR          = 0x01       // ttycom.h:154:1:
+	TIOCM_CAR                 = 0100       // ttycom.h:89:1:
+	TIOCM_CD                  = 64         // ttycom.h:90:1:
+	TIOCM_CTS                 = 0040       // ttycom.h:88:1:
+	TIOCM_DSR                 = 0400       // ttycom.h:93:1:
+	TIOCM_DTR                 = 0002       // ttycom.h:84:1:
+	TIOCM_LE                  = 0001       // ttycom.h:83:1:
+	TIOCM_RI                  = 128        // ttycom.h:92:1:
+	TIOCM_RNG                 = 0200       // ttycom.h:91:1:
+	TIOCM_RTS                 = 0004       // ttycom.h:85:1:
+	TIOCM_SR                  = 0020       // ttycom.h:87:1:
+	TIOCM_ST                  = 0010       // ttycom.h:86:1:
+	TIOCPKT_DATA              = 0x00       // ttycom.h:126:1:
+	TIOCPKT_DOSTOP            = 0x20       // ttycom.h:132:1:
+	TIOCPKT_FLUSHREAD         = 0x01       // ttycom.h:127:1:
+	TIOCPKT_FLUSHWRITE        = 0x02       // ttycom.h:128:1:
+	TIOCPKT_IOCTL             = 0x40       // ttycom.h:133:1:
+	TIOCPKT_NOSTOP            = 0x10       // ttycom.h:131:1:
+	TIOCPKT_START             = 0x08       // ttycom.h:130:1:
+	TIOCPKT_STOP              = 0x04       // ttycom.h:129:1:
+	TOSTOP                    = 0x00400000 // termios.h:180:1:
+	TTLINEDNAMELEN            = 32         // ttycom.h:110:1:
+	TTYDEF_CFLAG              = 19200      // ttydefaults.h:51:1:
+	TTYDEF_IFLAG              = 11010      // ttydefaults.h:48:1:
+	TTYDEF_LFLAG              = 1483       // ttydefaults.h:50:1:
+	TTYDEF_OFLAG              = 7          // ttydefaults.h:49:1:
+	TTYDEF_SPEED              = 9600       // ttydefaults.h:52:1:
+	TTYDISC                   = 0          // ttycom.h:172:1:
+	UID_MAX                   = 2147483647 // syslimits.h:56:1:
+	VDISCARD                  = 15         // termios.h:71:1:
+	VDSUSP                    = 11         // termios.h:65:1:
+	VEOF                      = 0          // termios.h:47:1:
+	VEOL                      = 1          // termios.h:48:1:
+	VEOL2                     = 2          // termios.h:50:1:
+	VERASE                    = 3          // termios.h:52:1:
+	VINTR                     = 8          // termios.h:61:1:
+	VKILL                     = 5          // termios.h:56:1:
+	VLNEXT                    = 14         // termios.h:70:1:
+	VMIN                      = 16         // termios.h:73:1:
+	VQUIT                     = 9          // termios.h:62:1:
+	VREPRINT                  = 6          // termios.h:58:1:
+	VSTART                    = 12         // termios.h:67:1:
+	VSTATUS                   = 18         // termios.h:76:1:
+	VSTOP                     = 13         // termios.h:68:1:
+	VSUSP                     = 10         // termios.h:63:1:
+	VTIME                     = 17         // termios.h:74:1:
+	VWERASE                   = 4          // termios.h:54:1:
+	X_AMD64_INT_TYPES_H_      = 0          // int_types.h:35:1:
+	X_FILE_OFFSET_BITS        = 64         // <builtin>:25:1:
+	X_LP64                    = 1          // <predefined>:268:1:
+	X_NETBSD_SOURCE           = 1          // featuretest.h:70:1:
+	X_NETBSD_SYS_TTYCOM_H_    = 0          // ttycom.h:65:1:
+	X_PATH_PTMDEV             = "/dev/ptm" // ttycom.h:81:1:
+	X_POSIX_SYS_TTYCOM_H_     = 0          // ttycom.h:40:1:
+	X_SYS_ANSI_H_             = 0          // ansi.h:33:1:
+	X_SYS_CDEFS_ELF_H_        = 0          // cdefs_elf.h:31:1:
+	X_SYS_CDEFS_H_            = 0          // cdefs.h:37:1:
+	X_SYS_COMMON_ANSI_H_      = 0          // common_ansi.h:33:1:
+	X_SYS_COMMON_INT_TYPES_H_ = 0          // common_int_types.h:33:1:
+	X_SYS_IOCCOM_H_           = 0          // ioccom.h:35:1:
+	X_SYS_SYSLIMITS_H_        = 0          // syslimits.h:35:1:
+	X_SYS_TERMIOS_H_          = 0          // termios.h:35:1:
+	X_SYS_TTYDEFAULTS_H_      = 0          // ttydefaults.h:43:1:
+	X_X86_64_CDEFS_H_         = 0          // cdefs.h:4:1:
+)
+
+type Ptrdiff_t = int64 /* <builtin>:3:26 */
+
+type Size_t = uint64 /* <builtin>:9:23 */
+
+type Wchar_t = int32 /* <builtin>:15:24 */
+
+type X__int128_t = struct {
+	Flo int64
+	Fhi int64
+} /* <builtin>:21:43 */ // must match modernc.org/mathutil.Int128
+type X__uint128_t = struct {
+	Flo uint64
+	Fhi uint64
+} /* <builtin>:22:44 */ // must match modernc.org/mathutil.Int128
+
+type X__builtin_va_list = uintptr /* <builtin>:46:14 */
+type X__float128 = float64        /* <builtin>:47:21 */
+
+// return true if value 'a' fits in type 't'
+
+//	$NetBSD: int_types.h,v 1.7 2014/07/25 21:43:13 joerg Exp $
+
+// -
+// Copyright (c) 1990 The Regents of the University of California.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	from: @(#)types.h	7.5 (Berkeley) 3/9/91
+
+//	$NetBSD: common_int_types.h,v 1.1 2014/07/25 21:43:13 joerg Exp $
+
+// -
+// Copyright (c) 2014 The NetBSD Foundation, Inc.
+// All rights reserved.
+//
+// This code is derived from software contributed to The NetBSD Foundation
+// by Joerg Sonnenberger.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+// ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+// PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+// BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+
+// 7.18.1 Integer types
+
+// 7.18.1.1 Exact-width integer types
+
+type X__int8_t = int8     /* common_int_types.h:45:27 */
+type X__uint8_t = uint8   /* common_int_types.h:46:27 */
+type X__int16_t = int16   /* common_int_types.h:47:27 */
+type X__uint16_t = uint16 /* common_int_types.h:48:27 */
+type X__int32_t = int32   /* common_int_types.h:49:27 */
+type X__uint32_t = uint32 /* common_int_types.h:50:27 */
+type X__int64_t = int64   /* common_int_types.h:51:27 */
+type X__uint64_t = uint64 /* common_int_types.h:52:27 */
+
+// 7.18.1.4 Integer types capable of holding object pointers
+
+type X__intptr_t = int64   /* common_int_types.h:58:27 */
+type X__uintptr_t = uint64 /* common_int_types.h:59:26 */
+
+// Types which are fundamental to the implementation and may appear in
+// more than one standard header are defined here.  Standard headers
+// then use:
+//	#ifdef	_BSD_SIZE_T_
+//	typedef	_BSD_SIZE_T_ size_t;
+//	#undef	_BSD_SIZE_T_
+//	#endif
+
+type X__caddr_t = uintptr        /* ansi.h:37:14 */ // core address
+type X__gid_t = X__uint32_t      /* ansi.h:38:20 */ // group id
+type X__in_addr_t = X__uint32_t  /* ansi.h:39:20 */ // IP(v4) address
+type X__in_port_t = X__uint16_t  /* ansi.h:40:20 */ // "Internet" port number
+type X__mode_t = X__uint32_t     /* ansi.h:41:20 */ // file permissions
+type X__off_t = X__int64_t       /* ansi.h:42:19 */ // file offset
+type X__pid_t = X__int32_t       /* ansi.h:43:19 */ // process id
+type X__sa_family_t = X__uint8_t /* ansi.h:44:19 */ // socket address family
+type X__socklen_t = uint32       /* ansi.h:45:22 */ // socket-related datum length
+type X__uid_t = X__uint32_t      /* ansi.h:46:20 */ // user id
+type X__fsblkcnt_t = X__uint64_t /* ansi.h:47:20 */ // fs block count (statvfs)
+type X__fsfilcnt_t = X__uint64_t /* ansi.h:48:20 */
+type X__wctrans_t = uintptr      /* ansi.h:51:32 */
+type X__wctype_t = uintptr       /* ansi.h:54:31 */
+
+// mbstate_t is an opaque object to keep conversion state, during multibyte
+// stream conversions.  The content must not be referenced by user programs.
+type X__mbstate_t = struct {
+	F__mbstateL  X__int64_t
+	F__ccgo_pad1 [120]byte
+} /* ansi.h:63:3 */
+
+type X__va_list = X__builtin_va_list /* ansi.h:72:27 */
+
+//	$NetBSD: featuretest.h,v 1.10 2013/04/26 18:29:06 christos Exp $
+
+// Written by Klaus Klein <kleink@NetBSD.org>, February 2, 1998.
+// Public domain.
+//
+// NOTE: Do not protect this header against multiple inclusion.  Doing
+// so can have subtle side-effects due to header file inclusion order
+// and testing of e.g. _POSIX_SOURCE vs. _POSIX_C_SOURCE.  Instead,
+// protect each CPP macro that we want to supply.
+
+// Feature-test macros are defined by several standards, and allow an
+// application to specify what symbols they want the system headers to
+// expose, and hence what standard they want them to conform to.
+// There are two classes of feature-test macros.  The first class
+// specify complete standards, and if one of these is defined, header
+// files will try to conform to the relevant standard.  They are:
+//
+// ANSI macros:
+// _ANSI_SOURCE			ANSI C89
+//
+// POSIX macros:
+// _POSIX_SOURCE == 1		IEEE Std 1003.1 (version?)
+// _POSIX_C_SOURCE == 1		IEEE Std 1003.1-1990
+// _POSIX_C_SOURCE == 2		IEEE Std 1003.2-1992
+// _POSIX_C_SOURCE == 199309L	IEEE Std 1003.1b-1993
+// _POSIX_C_SOURCE == 199506L	ISO/IEC 9945-1:1996
+// _POSIX_C_SOURCE == 200112L	IEEE Std 1003.1-2001
+// _POSIX_C_SOURCE == 200809L   IEEE Std 1003.1-2008
+//
+// X/Open macros:
+// _XOPEN_SOURCE		System Interfaces and Headers, Issue 4, Ver 2
+// _XOPEN_SOURCE_EXTENDED == 1	XSH4.2 UNIX extensions
+// _XOPEN_SOURCE == 500		System Interfaces and Headers, Issue 5
+// _XOPEN_SOURCE == 520		Networking Services (XNS), Issue 5.2
+// _XOPEN_SOURCE == 600		IEEE Std 1003.1-2001, XSI option
+// _XOPEN_SOURCE == 700		IEEE Std 1003.1-2008, XSI option
+//
+// NetBSD macros:
+// _NETBSD_SOURCE == 1		Make all NetBSD features available.
+//
+// If more than one of these "major" feature-test macros is defined,
+// then the set of facilities provided (and namespace used) is the
+// union of that specified by the relevant standards, and in case of
+// conflict, the earlier standard in the above list has precedence (so
+// if both _POSIX_C_SOURCE and _NETBSD_SOURCE are defined, the version
+// of rename() that's used is the POSIX one).  If none of the "major"
+// feature-test macros is defined, _NETBSD_SOURCE is assumed.
+//
+// There are also "minor" feature-test macros, which enable extra
+// functionality in addition to some base standard.  They should be
+// defined along with one of the "major" macros.  The "minor" macros
+// are:
+//
+// _REENTRANT
+// _ISOC99_SOURCE
+// _ISOC11_SOURCE
+// _LARGEFILE_SOURCE		Large File Support
+//		<http://ftp.sas.com/standards/large.file/x_open.20Mar96.html>
+
+// Special Control Characters
+//
+// Index into c_cc[] character array.
+//
+//	Name	     Subscript	Enabled by
+//			7	   spare 1
+//			19	   spare 2
+
+// Input flags - software input processing
+
+// Output flags - software output processing
+
+// Control flags - hardware control of terminal
+
+// "Local" flags - dumping ground for other state
+//
+// Warning: some flags in this structure begin with
+// the letter "I" and look like they belong in the
+// input flag.
+
+type Tcflag_t = uint32 /* termios.h:188:22 */
+type Cc_t = uint8      /* termios.h:189:23 */
+type Speed_t = uint32  /* termios.h:190:22 */
+
+type Termios = struct {
+	Fc_iflag  Tcflag_t
+	Fc_oflag  Tcflag_t
+	Fc_cflag  Tcflag_t
+	Fc_lflag  Tcflag_t
+	Fc_cc     [20]Cc_t
+	Fc_ispeed int32
+	Fc_ospeed int32
+} /* termios.h:192:1 */
+
+// Commands passed to tcsetattr() for setting the termios structure.
+
+// Standard speeds
+
+type Pid_t = X__pid_t /* termios.h:265:18 */
+
+// Include tty ioctl's that aren't just for backwards compatibility
+// with the old tty driver.  These ioctl definitions were previously
+// in <sys/ioctl.h>.   Most of this appears only when _NETBSD_SOURCE
+// is defined, but (at least) struct winsize has been made standard,
+// and needs to be visible here (as well as via the old <sys/ioctl.h>.)
+//	$NetBSD: ttycom.h,v 1.21 2017/10/25 06:32:59 kre Exp $
+
+// -
+// Copyright (c) 1982, 1986, 1990, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttycom.h	8.1 (Berkeley) 3/28/94
+
+//	$NetBSD: syslimits.h,v 1.28 2015/08/21 07:19:39 uebayasi Exp $
+
+// Copyright (c) 1988, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)syslimits.h	8.1 (Berkeley) 6/2/93
+
+//	$NetBSD: featuretest.h,v 1.10 2013/04/26 18:29:06 christos Exp $
+
+// Written by Klaus Klein <kleink@NetBSD.org>, February 2, 1998.
+// Public domain.
+//
+// NOTE: Do not protect this header against multiple inclusion.  Doing
+// so can have subtle side-effects due to header file inclusion order
+// and testing of e.g. _POSIX_SOURCE vs. _POSIX_C_SOURCE.  Instead,
+// protect each CPP macro that we want to supply.
+
+// Feature-test macros are defined by several standards, and allow an
+// application to specify what symbols they want the system headers to
+// expose, and hence what standard they want them to conform to.
+// There are two classes of feature-test macros.  The first class
+// specify complete standards, and if one of these is defined, header
+// files will try to conform to the relevant standard.  They are:
+//
+// ANSI macros:
+// _ANSI_SOURCE			ANSI C89
+//
+// POSIX macros:
+// _POSIX_SOURCE == 1		IEEE Std 1003.1 (version?)
+// _POSIX_C_SOURCE == 1		IEEE Std 1003.1-1990
+// _POSIX_C_SOURCE == 2		IEEE Std 1003.2-1992
+// _POSIX_C_SOURCE == 199309L	IEEE Std 1003.1b-1993
+// _POSIX_C_SOURCE == 199506L	ISO/IEC 9945-1:1996
+// _POSIX_C_SOURCE == 200112L	IEEE Std 1003.1-2001
+// _POSIX_C_SOURCE == 200809L   IEEE Std 1003.1-2008
+//
+// X/Open macros:
+// _XOPEN_SOURCE		System Interfaces and Headers, Issue 4, Ver 2
+// _XOPEN_SOURCE_EXTENDED == 1	XSH4.2 UNIX extensions
+// _XOPEN_SOURCE == 500		System Interfaces and Headers, Issue 5
+// _XOPEN_SOURCE == 520		Networking Services (XNS), Issue 5.2
+// _XOPEN_SOURCE == 600		IEEE Std 1003.1-2001, XSI option
+// _XOPEN_SOURCE == 700		IEEE Std 1003.1-2008, XSI option
+//
+// NetBSD macros:
+// _NETBSD_SOURCE == 1		Make all NetBSD features available.
+//
+// If more than one of these "major" feature-test macros is defined,
+// then the set of facilities provided (and namespace used) is the
+// union of that specified by the relevant standards, and in case of
+// conflict, the earlier standard in the above list has precedence (so
+// if both _POSIX_C_SOURCE and _NETBSD_SOURCE are defined, the version
+// of rename() that's used is the POSIX one).  If none of the "major"
+// feature-test macros is defined, _NETBSD_SOURCE is assumed.
+//
+// There are also "minor" feature-test macros, which enable extra
+// functionality in addition to some base standard.  They should be
+// defined along with one of the "major" macros.  The "minor" macros
+// are:
+//
+// _REENTRANT
+// _ISOC99_SOURCE
+// _ISOC11_SOURCE
+// _LARGEFILE_SOURCE		Large File Support
+//		<http://ftp.sas.com/standards/large.file/x_open.20Mar96.html>
+
+// kept in sync with MAXNAMLEN
+
+// IEEE Std 1003.1c-95, adopted in X/Open CAE Specification Issue 5 Version 2
+
+// X/Open CAE Specification Issue 5 Version 2
+
+//	$NetBSD: ioccom.h,v 1.13 2019/05/26 10:21:33 hannken Exp $
+
+// -
+// Copyright (c) 1982, 1986, 1990, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ioccom.h	8.3 (Berkeley) 1/9/95
+
+// Ioctl's have the command encoded in the lower word, and the size of
+// any in or out parameters in the upper word.  The high 3 bits of the
+// upper word are used to encode the in/out status of the parameter.
+//
+//	 31 29 28                     16 15            8 7             0
+//	+---------------------------------------------------------------+
+//	| I/O | Parameter Length        | Command Group | Command       |
+//	+---------------------------------------------------------------+
+
+// no parameters
+// copy parameters out
+// copy parameters in
+// copy parameters in and out
+// mask for IN/OUT/VOID
+
+// this should be _IORW, but stdio got there first
+
+// Tty ioctl's except for those supported only for backwards compatibility
+// with the old tty driver.
+
+// Window/terminal size structure.  This information is stored by the kernel
+// in order to provide a consistent interface, but is not used by the kernel.
+type Winsize = struct {
+	Fws_row    uint16
+	Fws_col    uint16
+	Fws_xpixel uint16
+	Fws_ypixel uint16
+} /* ttycom.h:54:1 */
+
+// The following are not exposed when imported via <termios.h>
+// when _POSIX_SOURCE (et.al.) is defined (and hence _NETBSD_SOURCE
+// is not, unless that is added manually.)
+
+// ptmget, for /dev/ptm pty getting ioctl TIOCPTMGET, and for TIOCPTSNAME
+type Ptmget = struct {
+	Fcfd int32
+	Fsfd int32
+	Fcn  [1024]int8
+	Fsn  [1024]int8
+} /* ttycom.h:74:1 */
+
+// 8-10 compat
+// 15 unused
+// 17-18 compat
+
+// This is the maximum length of a line discipline's name.
+type Linedn_t = [32]int8 /* ttycom.h:111:14 */
+
+// END OF PROTECTED INCLUDE.
+
+//	$NetBSD: ttydefaults.h,v 1.16 2008/05/24 14:06:39 yamt Exp $
+
+// -
+// Copyright (c) 1982, 1986, 1993
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttydefaults.h	8.4 (Berkeley) 1/21/94
+
+// System wide defaults for terminal state.
+
+// Defaults on "first" open.
+
+// Control Character Defaults
+// compat
+
+// PROTECTED INCLUSION ENDS HERE
+
+// #define TTYDEFCHARS to include an array of default control characters.
+var _ int8 /* gen.c:2:13: */
diff --git a/vendor/modernc.org/libc/termios/termios_netbsd_arm.go b/vendor/modernc.org/libc/termios/termios_netbsd_arm.go
new file mode 100644
index 0000000..88c400e
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/termios_netbsd_arm.go
@@ -0,0 +1,728 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_netbsd_arm.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+import (
+	"math"
+	"reflect"
+	"sync/atomic"
+	"unsafe"
+)
+
+var _ = math.Pi
+var _ reflect.Kind
+var _ atomic.Value
+var _ unsafe.Pointer
+
+const (
+	ALTWERASE                 = 0x00000200 // termios.h:174:1:
+	ARG_MAX                   = 262144     // syslimits.h:45:1:
+	B0                        = 0          // termios.h:215:1:
+	B1000000                  = 1000000    // termios.h:242:1:
+	B110                      = 110        // termios.h:218:1:
+	B115200                   = 115200     // termios.h:237:1:
+	B1200                     = 1200       // termios.h:224:1:
+	B134                      = 134        // termios.h:219:1:
+	B14400                    = 14400      // termios.h:233:1:
+	B150                      = 150        // termios.h:220:1:
+	B1500000                  = 1500000    // termios.h:243:1:
+	B1800                     = 1800       // termios.h:225:1:
+	B19200                    = 19200      // termios.h:229:1:
+	B200                      = 200        // termios.h:221:1:
+	B2000000                  = 2000000    // termios.h:244:1:
+	B230400                   = 230400     // termios.h:238:1:
+	B2400                     = 2400       // termios.h:226:1:
+	B2500000                  = 2500000    // termios.h:245:1:
+	B28800                    = 28800      // termios.h:234:1:
+	B300                      = 300        // termios.h:222:1:
+	B3000000                  = 3000000    // termios.h:246:1:
+	B3500000                  = 3500000    // termios.h:247:1:
+	B38400                    = 38400      // termios.h:230:1:
+	B4000000                  = 4000000    // termios.h:248:1:
+	B460800                   = 460800     // termios.h:239:1:
+	B4800                     = 4800       // termios.h:227:1:
+	B50                       = 50         // termios.h:216:1:
+	B500000                   = 500000     // termios.h:240:1:
+	B57600                    = 57600      // termios.h:235:1:
+	B600                      = 600        // termios.h:223:1:
+	B7200                     = 7200       // termios.h:232:1:
+	B75                       = 75         // termios.h:217:1:
+	B76800                    = 76800      // termios.h:236:1:
+	B921600                   = 921600     // termios.h:241:1:
+	B9600                     = 9600       // termios.h:228:1:
+	BC_DIM_MAX                = 65535      // syslimits.h:64:1:
+	BRKINT                    = 0x00000002 // termios.h:91:1:
+	CCTS_OFLOW                = 65536      // termios.h:145:1:
+	CDISCARD                  = 15         // ttydefaults.h:72:1:
+	CDSUSP                    = 25         // ttydefaults.h:68:1:
+	CDTRCTS                   = 0x00020000 // termios.h:146:1:
+	CEOF                      = 4          // ttydefaults.h:58:1:
+	CEOT                      = 4          // ttydefaults.h:75:1:
+	CERASE                    = 0177       // ttydefaults.h:60:1:
+	CFLUSH                    = 15         // ttydefaults.h:79:1:
+	CHILD_MAX                 = 160        // syslimits.h:47:1:
+	CHWFLOW                   = 1245184    // termios.h:148:1:
+	CIGNORE                   = 0x00000001 // termios.h:129:1:
+	CINTR                     = 3          // ttydefaults.h:61:1:
+	CKILL                     = 21         // ttydefaults.h:63:1:
+	CLNEXT                    = 22         // ttydefaults.h:71:1:
+	CLOCAL                    = 0x00008000 // termios.h:141:1:
+	CMIN                      = 1          // ttydefaults.h:64:1:
+	COLL_WEIGHTS_MAX          = 2          // syslimits.h:67:1:
+	CQUIT                     = 034        // ttydefaults.h:65:1:
+	CREAD                     = 0x00000800 // termios.h:137:1:
+	CREPRINT                  = 18         // ttydefaults.h:74:1:
+	CRPRNT                    = 18         // ttydefaults.h:78:1:
+	CRTSCTS                   = 0x00010000 // termios.h:143:1:
+	CRTS_IFLOW                = 65536      // termios.h:144:1:
+	CS5                       = 0x00000000 // termios.h:132:1:
+	CS6                       = 0x00000100 // termios.h:133:1:
+	CS7                       = 0x00000200 // termios.h:134:1:
+	CS8                       = 0x00000300 // termios.h:135:1:
+	CSIZE                     = 0x00000300 // termios.h:131:1:
+	CSTART                    = 17         // ttydefaults.h:69:1:
+	CSTATUS                   = 20         // ttydefaults.h:62:1:
+	CSTOP                     = 19         // ttydefaults.h:70:1:
+	CSTOPB                    = 0x00000400 // termios.h:136:1:
+	CSUSP                     = 26         // ttydefaults.h:66:1:
+	CTIME                     = 0          // ttydefaults.h:67:1:
+	CWERASE                   = 23         // ttydefaults.h:73:1:
+	ECHO                      = 0x00000008 // termios.h:165:1:
+	ECHOCTL                   = 0x00000040 // termios.h:169:1:
+	ECHOE                     = 0x00000002 // termios.h:163:1:
+	ECHOK                     = 0x00000004 // termios.h:164:1:
+	ECHOKE                    = 0x00000001 // termios.h:161:1:
+	ECHONL                    = 0x00000010 // termios.h:166:1:
+	ECHOPRT                   = 0x00000020 // termios.h:168:1:
+	EXPR_NEST_MAX             = 32         // syslimits.h:68:1:
+	EXTA                      = 19200      // termios.h:249:1:
+	EXTB                      = 38400      // termios.h:250:1:
+	EXTPROC                   = 0x00000800 // termios.h:178:1:
+	FLUSHO                    = 0x00800000 // termios.h:182:1:
+	GID_MAX                   = 2147483647 // syslimits.h:49:1:
+	HDLCDISC                  = 9          // ttycom.h:177:1:
+	HUPCL                     = 0x00004000 // termios.h:140:1:
+	ICANON                    = 0x00000100 // termios.h:172:1:
+	ICRNL                     = 0x00000100 // termios.h:98:1:
+	IEXTEN                    = 0x00000400 // termios.h:176:1:
+	IGNBRK                    = 0x00000001 // termios.h:90:1:
+	IGNCR                     = 0x00000080 // termios.h:97:1:
+	IGNPAR                    = 0x00000004 // termios.h:92:1:
+	IMAXBEL                   = 0x00002000 // termios.h:105:1:
+	INLCR                     = 0x00000040 // termios.h:96:1:
+	INPCK                     = 0x00000010 // termios.h:94:1:
+	IOCGROUP_SHIFT            = 8          // ioccom.h:49:1:
+	IOCPARM_MASK              = 0x1fff     // ioccom.h:47:1:
+	IOCPARM_SHIFT             = 16         // ioccom.h:48:1:
+	IOV_MAX                   = 1024       // syslimits.h:84:1:
+	ISIG                      = 0x00000080 // termios.h:171:1:
+	ISTRIP                    = 0x00000020 // termios.h:95:1:
+	IXANY                     = 0x00000800 // termios.h:102:1:
+	IXOFF                     = 0x00000400 // termios.h:100:1:
+	IXON                      = 0x00000200 // termios.h:99:1:
+	LINE_MAX                  = 2048       // syslimits.h:69:1:
+	LINK_MAX                  = 32767      // syslimits.h:50:1:
+	LOGIN_NAME_MAX            = 17         // syslimits.h:77:1:
+	MAX_CANON                 = 255        // syslimits.h:51:1:
+	MAX_INPUT                 = 255        // syslimits.h:52:1:
+	MDMBUF                    = 0x00100000 // termios.h:147:1:
+	NAME_MAX                  = 511        // syslimits.h:53:1:
+	NCCS                      = 20         // termios.h:79:1:
+	NGROUPS_MAX               = 16         // syslimits.h:55:1:
+	NOFLSH                    = 0x80000000 // termios.h:186:1:
+	NOKERNINFO                = 0x02000000 // termios.h:183:1:
+	NZERO                     = 20         // syslimits.h:85:1:
+	OCRNL                     = 0x00000010 // termios.h:120:1:
+	ONLCR                     = 0x00000002 // termios.h:113:1:
+	ONLRET                    = 0x00000040 // termios.h:122:1:
+	ONOCR                     = 0x00000020 // termios.h:121:1:
+	ONOEOT                    = 0x00000008 // termios.h:117:1:
+	OPEN_MAX                  = 128        // syslimits.h:58:1:
+	OPOST                     = 0x00000001 // termios.h:111:1:
+	OXTABS                    = 0x00000004 // termios.h:116:1:
+	PARENB                    = 0x00001000 // termios.h:138:1:
+	PARMRK                    = 0x00000008 // termios.h:93:1:
+	PARODD                    = 0x00002000 // termios.h:139:1:
+	PATH_MAX                  = 1024       // syslimits.h:60:1:
+	PENDIN                    = 0x20000000 // termios.h:184:1:
+	PIPE_BUF                  = 512        // syslimits.h:61:1:
+	PPPDISC                   = 5          // ttycom.h:175:1:
+	RE_DUP_MAX                = 255        // syslimits.h:70:1:
+	SLIPDISC                  = 4          // ttycom.h:174:1:
+	STRIPDISC                 = 6          // ttycom.h:176:1:
+	TABLDISC                  = 3          // ttycom.h:173:1:
+	TCIFLUSH                  = 1          // termios.h:255:1:
+	TCIOFF                    = 3          // termios.h:260:1:
+	TCIOFLUSH                 = 3          // termios.h:257:1:
+	TCION                     = 4          // termios.h:261:1:
+	TCOFLUSH                  = 2          // termios.h:256:1:
+	TCOOFF                    = 1          // termios.h:258:1:
+	TCOON                     = 2          // termios.h:259:1:
+	TCSADRAIN                 = 1          // termios.h:206:1:
+	TCSAFLUSH                 = 2          // termios.h:207:1:
+	TCSANOW                   = 0          // termios.h:205:1:
+	TCSASOFT                  = 0x10       // termios.h:209:1:
+	TIOCFLAG_CDTRCTS          = 0x10       // ttycom.h:158:1:
+	TIOCFLAG_CLOCAL           = 0x02       // ttycom.h:155:1:
+	TIOCFLAG_CRTSCTS          = 0x04       // ttycom.h:156:1:
+	TIOCFLAG_MDMBUF           = 0x08       // ttycom.h:157:1:
+	TIOCFLAG_SOFTCAR          = 0x01       // ttycom.h:154:1:
+	TIOCM_CAR                 = 0100       // ttycom.h:89:1:
+	TIOCM_CD                  = 64         // ttycom.h:90:1:
+	TIOCM_CTS                 = 0040       // ttycom.h:88:1:
+	TIOCM_DSR                 = 0400       // ttycom.h:93:1:
+	TIOCM_DTR                 = 0002       // ttycom.h:84:1:
+	TIOCM_LE                  = 0001       // ttycom.h:83:1:
+	TIOCM_RI                  = 128        // ttycom.h:92:1:
+	TIOCM_RNG                 = 0200       // ttycom.h:91:1:
+	TIOCM_RTS                 = 0004       // ttycom.h:85:1:
+	TIOCM_SR                  = 0020       // ttycom.h:87:1:
+	TIOCM_ST                  = 0010       // ttycom.h:86:1:
+	TIOCPKT_DATA              = 0x00       // ttycom.h:126:1:
+	TIOCPKT_DOSTOP            = 0x20       // ttycom.h:132:1:
+	TIOCPKT_FLUSHREAD         = 0x01       // ttycom.h:127:1:
+	TIOCPKT_FLUSHWRITE        = 0x02       // ttycom.h:128:1:
+	TIOCPKT_IOCTL             = 0x40       // ttycom.h:133:1:
+	TIOCPKT_NOSTOP            = 0x10       // ttycom.h:131:1:
+	TIOCPKT_START             = 0x08       // ttycom.h:130:1:
+	TIOCPKT_STOP              = 0x04       // ttycom.h:129:1:
+	TOSTOP                    = 0x00400000 // termios.h:180:1:
+	TTLINEDNAMELEN            = 32         // ttycom.h:110:1:
+	TTYDEF_CFLAG              = 19200      // ttydefaults.h:51:1:
+	TTYDEF_IFLAG              = 11010      // ttydefaults.h:48:1:
+	TTYDEF_LFLAG              = 1483       // ttydefaults.h:50:1:
+	TTYDEF_OFLAG              = 7          // ttydefaults.h:49:1:
+	TTYDEF_SPEED              = 9600       // ttydefaults.h:52:1:
+	TTYDISC                   = 0          // ttycom.h:172:1:
+	UID_MAX                   = 2147483647 // syslimits.h:56:1:
+	VDISCARD                  = 15         // termios.h:71:1:
+	VDSUSP                    = 11         // termios.h:65:1:
+	VEOF                      = 0          // termios.h:47:1:
+	VEOL                      = 1          // termios.h:48:1:
+	VEOL2                     = 2          // termios.h:50:1:
+	VERASE                    = 3          // termios.h:52:1:
+	VINTR                     = 8          // termios.h:61:1:
+	VKILL                     = 5          // termios.h:56:1:
+	VLNEXT                    = 14         // termios.h:70:1:
+	VMIN                      = 16         // termios.h:73:1:
+	VQUIT                     = 9          // termios.h:62:1:
+	VREPRINT                  = 6          // termios.h:58:1:
+	VSTART                    = 12         // termios.h:67:1:
+	VSTATUS                   = 18         // termios.h:76:1:
+	VSTOP                     = 13         // termios.h:68:1:
+	VSUSP                     = 10         // termios.h:63:1:
+	VTIME                     = 17         // termios.h:74:1:
+	VWERASE                   = 4          // termios.h:54:1:
+	X_ARM_ARCH_4T             = 0          // cdefs.h:44:1:
+	X_ARM_ARCH_5              = 0          // cdefs.h:40:1:
+	X_ARM_ARCH_5T             = 0          // cdefs.h:36:1:
+	X_ARM_ARCH_6              = 0          // cdefs.h:31:1:
+	X_ARM_ARCH_7              = 0          // cdefs.h:20:1:
+	X_ARM_ARCH_DWORD_OK       = 0          // cdefs.h:51:1:
+	X_ARM_ARCH_T2             = 0          // cdefs.h:24:1:
+	X_ARM_CDEFS_H_            = 0          // cdefs.h:4:1:
+	X_ARM_INT_TYPES_H_        = 0          // int_types.h:33:1:
+	X_FILE_OFFSET_BITS        = 64         // <builtin>:25:1:
+	X_NETBSD_SOURCE           = 1          // featuretest.h:70:1:
+	X_NETBSD_SYS_TTYCOM_H_    = 0          // ttycom.h:65:1:
+	X_PATH_PTMDEV             = "/dev/ptm" // ttycom.h:81:1:
+	X_POSIX_SYS_TTYCOM_H_     = 0          // ttycom.h:40:1:
+	X_SYS_ANSI_H_             = 0          // ansi.h:33:1:
+	X_SYS_CDEFS_ELF_H_        = 0          // cdefs_elf.h:31:1:
+	X_SYS_CDEFS_H_            = 0          // cdefs.h:37:1:
+	X_SYS_COMMON_ANSI_H_      = 0          // common_ansi.h:33:1:
+	X_SYS_COMMON_INT_TYPES_H_ = 0          // common_int_types.h:33:1:
+	X_SYS_IOCCOM_H_           = 0          // ioccom.h:35:1:
+	X_SYS_SYSLIMITS_H_        = 0          // syslimits.h:35:1:
+	X_SYS_TERMIOS_H_          = 0          // termios.h:35:1:
+	X_SYS_TTYDEFAULTS_H_      = 0          // ttydefaults.h:43:1:
+)
+
+type Ptrdiff_t = int32 /* <builtin>:3:26 */
+
+type Size_t = uint32 /* <builtin>:9:23 */
+
+type Wchar_t = int32 /* <builtin>:15:24 */
+
+type X__builtin_va_list = uintptr /* <builtin>:46:14 */
+type X__float128 = float64        /* <builtin>:47:21 */
+
+// return true if value 'a' fits in type 't'
+
+//	$NetBSD: int_types.h,v 1.17 2014/07/25 21:43:13 joerg Exp $
+
+// -
+// Copyright (c) 2014 The NetBSD Foundation, Inc.
+// All rights reserved.
+//
+// This code is derived from software contributed to The NetBSD Foundation
+// by Matt Thomas of 3am Software Foundry.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+// ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+// PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+// BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+
+//	$NetBSD: common_int_types.h,v 1.1 2014/07/25 21:43:13 joerg Exp $
+
+// -
+// Copyright (c) 2014 The NetBSD Foundation, Inc.
+// All rights reserved.
+//
+// This code is derived from software contributed to The NetBSD Foundation
+// by Joerg Sonnenberger.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+// ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+// PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+// BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+
+// 7.18.1 Integer types
+
+// 7.18.1.1 Exact-width integer types
+
+type X__int8_t = int8     /* common_int_types.h:45:27 */
+type X__uint8_t = uint8   /* common_int_types.h:46:27 */
+type X__int16_t = int16   /* common_int_types.h:47:27 */
+type X__uint16_t = uint16 /* common_int_types.h:48:27 */
+type X__int32_t = int32   /* common_int_types.h:49:27 */
+type X__uint32_t = uint32 /* common_int_types.h:50:27 */
+type X__int64_t = int64   /* common_int_types.h:51:27 */
+type X__uint64_t = uint64 /* common_int_types.h:52:27 */
+
+// 7.18.1.4 Integer types capable of holding object pointers
+
+type X__intptr_t = int32   /* common_int_types.h:58:27 */
+type X__uintptr_t = uint32 /* common_int_types.h:59:26 */
+
+// Types which are fundamental to the implementation and may appear in
+// more than one standard header are defined here.  Standard headers
+// then use:
+//	#ifdef	_BSD_SIZE_T_
+//	typedef	_BSD_SIZE_T_ size_t;
+//	#undef	_BSD_SIZE_T_
+//	#endif
+
+type X__caddr_t = uintptr        /* ansi.h:37:14 */ // core address
+type X__gid_t = X__uint32_t      /* ansi.h:38:20 */ // group id
+type X__in_addr_t = X__uint32_t  /* ansi.h:39:20 */ // IP(v4) address
+type X__in_port_t = X__uint16_t  /* ansi.h:40:20 */ // "Internet" port number
+type X__mode_t = X__uint32_t     /* ansi.h:41:20 */ // file permissions
+type X__off_t = X__int64_t       /* ansi.h:42:19 */ // file offset
+type X__pid_t = X__int32_t       /* ansi.h:43:19 */ // process id
+type X__sa_family_t = X__uint8_t /* ansi.h:44:19 */ // socket address family
+type X__socklen_t = uint32       /* ansi.h:45:22 */ // socket-related datum length
+type X__uid_t = X__uint32_t      /* ansi.h:46:20 */ // user id
+type X__fsblkcnt_t = X__uint64_t /* ansi.h:47:20 */ // fs block count (statvfs)
+type X__fsfilcnt_t = X__uint64_t /* ansi.h:48:20 */
+type X__wctrans_t = uintptr      /* ansi.h:51:32 */
+type X__wctype_t = uintptr       /* ansi.h:54:31 */
+
+// mbstate_t is an opaque object to keep conversion state, during multibyte
+// stream conversions.  The content must not be referenced by user programs.
+type X__mbstate_t = struct {
+	F__mbstateL  X__int64_t
+	F__ccgo_pad1 [120]byte
+} /* ansi.h:63:3 */
+
+type X__va_list = X__builtin_va_list /* ansi.h:72:27 */
+
+//	$NetBSD: featuretest.h,v 1.10 2013/04/26 18:29:06 christos Exp $
+
+// Written by Klaus Klein <kleink@NetBSD.org>, February 2, 1998.
+// Public domain.
+//
+// NOTE: Do not protect this header against multiple inclusion.  Doing
+// so can have subtle side-effects due to header file inclusion order
+// and testing of e.g. _POSIX_SOURCE vs. _POSIX_C_SOURCE.  Instead,
+// protect each CPP macro that we want to supply.
+
+// Feature-test macros are defined by several standards, and allow an
+// application to specify what symbols they want the system headers to
+// expose, and hence what standard they want them to conform to.
+// There are two classes of feature-test macros.  The first class
+// specify complete standards, and if one of these is defined, header
+// files will try to conform to the relevant standard.  They are:
+//
+// ANSI macros:
+// _ANSI_SOURCE			ANSI C89
+//
+// POSIX macros:
+// _POSIX_SOURCE == 1		IEEE Std 1003.1 (version?)
+// _POSIX_C_SOURCE == 1		IEEE Std 1003.1-1990
+// _POSIX_C_SOURCE == 2		IEEE Std 1003.2-1992
+// _POSIX_C_SOURCE == 199309L	IEEE Std 1003.1b-1993
+// _POSIX_C_SOURCE == 199506L	ISO/IEC 9945-1:1996
+// _POSIX_C_SOURCE == 200112L	IEEE Std 1003.1-2001
+// _POSIX_C_SOURCE == 200809L   IEEE Std 1003.1-2008
+//
+// X/Open macros:
+// _XOPEN_SOURCE		System Interfaces and Headers, Issue 4, Ver 2
+// _XOPEN_SOURCE_EXTENDED == 1	XSH4.2 UNIX extensions
+// _XOPEN_SOURCE == 500		System Interfaces and Headers, Issue 5
+// _XOPEN_SOURCE == 520		Networking Services (XNS), Issue 5.2
+// _XOPEN_SOURCE == 600		IEEE Std 1003.1-2001, XSI option
+// _XOPEN_SOURCE == 700		IEEE Std 1003.1-2008, XSI option
+//
+// NetBSD macros:
+// _NETBSD_SOURCE == 1		Make all NetBSD features available.
+//
+// If more than one of these "major" feature-test macros is defined,
+// then the set of facilities provided (and namespace used) is the
+// union of that specified by the relevant standards, and in case of
+// conflict, the earlier standard in the above list has precedence (so
+// if both _POSIX_C_SOURCE and _NETBSD_SOURCE are defined, the version
+// of rename() that's used is the POSIX one).  If none of the "major"
+// feature-test macros is defined, _NETBSD_SOURCE is assumed.
+//
+// There are also "minor" feature-test macros, which enable extra
+// functionality in addition to some base standard.  They should be
+// defined along with one of the "major" macros.  The "minor" macros
+// are:
+//
+// _REENTRANT
+// _ISOC99_SOURCE
+// _ISOC11_SOURCE
+// _LARGEFILE_SOURCE		Large File Support
+//		<http://ftp.sas.com/standards/large.file/x_open.20Mar96.html>
+
+// Special Control Characters
+//
+// Index into c_cc[] character array.
+//
+//	Name	     Subscript	Enabled by
+//			7	   spare 1
+//			19	   spare 2
+
+// Input flags - software input processing
+
+// Output flags - software output processing
+
+// Control flags - hardware control of terminal
+
+// "Local" flags - dumping ground for other state
+//
+// Warning: some flags in this structure begin with
+// the letter "I" and look like they belong in the
+// input flag.
+
+type Tcflag_t = uint32 /* termios.h:188:22 */
+type Cc_t = uint8      /* termios.h:189:23 */
+type Speed_t = uint32  /* termios.h:190:22 */
+
+type Termios = struct {
+	Fc_iflag  Tcflag_t
+	Fc_oflag  Tcflag_t
+	Fc_cflag  Tcflag_t
+	Fc_lflag  Tcflag_t
+	Fc_cc     [20]Cc_t
+	Fc_ispeed int32
+	Fc_ospeed int32
+} /* termios.h:192:1 */
+
+// Commands passed to tcsetattr() for setting the termios structure.
+
+// Standard speeds
+
+type Pid_t = X__pid_t /* termios.h:265:18 */
+
+// Include tty ioctl's that aren't just for backwards compatibility
+// with the old tty driver.  These ioctl definitions were previously
+// in <sys/ioctl.h>.   Most of this appears only when _NETBSD_SOURCE
+// is defined, but (at least) struct winsize has been made standard,
+// and needs to be visible here (as well as via the old <sys/ioctl.h>.)
+//	$NetBSD: ttycom.h,v 1.21 2017/10/25 06:32:59 kre Exp $
+
+// -
+// Copyright (c) 1982, 1986, 1990, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttycom.h	8.1 (Berkeley) 3/28/94
+
+//	$NetBSD: syslimits.h,v 1.28 2015/08/21 07:19:39 uebayasi Exp $
+
+// Copyright (c) 1988, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)syslimits.h	8.1 (Berkeley) 6/2/93
+
+//	$NetBSD: featuretest.h,v 1.10 2013/04/26 18:29:06 christos Exp $
+
+// Written by Klaus Klein <kleink@NetBSD.org>, February 2, 1998.
+// Public domain.
+//
+// NOTE: Do not protect this header against multiple inclusion.  Doing
+// so can have subtle side-effects due to header file inclusion order
+// and testing of e.g. _POSIX_SOURCE vs. _POSIX_C_SOURCE.  Instead,
+// protect each CPP macro that we want to supply.
+
+// Feature-test macros are defined by several standards, and allow an
+// application to specify what symbols they want the system headers to
+// expose, and hence what standard they want them to conform to.
+// There are two classes of feature-test macros.  The first class
+// specify complete standards, and if one of these is defined, header
+// files will try to conform to the relevant standard.  They are:
+//
+// ANSI macros:
+// _ANSI_SOURCE			ANSI C89
+//
+// POSIX macros:
+// _POSIX_SOURCE == 1		IEEE Std 1003.1 (version?)
+// _POSIX_C_SOURCE == 1		IEEE Std 1003.1-1990
+// _POSIX_C_SOURCE == 2		IEEE Std 1003.2-1992
+// _POSIX_C_SOURCE == 199309L	IEEE Std 1003.1b-1993
+// _POSIX_C_SOURCE == 199506L	ISO/IEC 9945-1:1996
+// _POSIX_C_SOURCE == 200112L	IEEE Std 1003.1-2001
+// _POSIX_C_SOURCE == 200809L   IEEE Std 1003.1-2008
+//
+// X/Open macros:
+// _XOPEN_SOURCE		System Interfaces and Headers, Issue 4, Ver 2
+// _XOPEN_SOURCE_EXTENDED == 1	XSH4.2 UNIX extensions
+// _XOPEN_SOURCE == 500		System Interfaces and Headers, Issue 5
+// _XOPEN_SOURCE == 520		Networking Services (XNS), Issue 5.2
+// _XOPEN_SOURCE == 600		IEEE Std 1003.1-2001, XSI option
+// _XOPEN_SOURCE == 700		IEEE Std 1003.1-2008, XSI option
+//
+// NetBSD macros:
+// _NETBSD_SOURCE == 1		Make all NetBSD features available.
+//
+// If more than one of these "major" feature-test macros is defined,
+// then the set of facilities provided (and namespace used) is the
+// union of that specified by the relevant standards, and in case of
+// conflict, the earlier standard in the above list has precedence (so
+// if both _POSIX_C_SOURCE and _NETBSD_SOURCE are defined, the version
+// of rename() that's used is the POSIX one).  If none of the "major"
+// feature-test macros is defined, _NETBSD_SOURCE is assumed.
+//
+// There are also "minor" feature-test macros, which enable extra
+// functionality in addition to some base standard.  They should be
+// defined along with one of the "major" macros.  The "minor" macros
+// are:
+//
+// _REENTRANT
+// _ISOC99_SOURCE
+// _ISOC11_SOURCE
+// _LARGEFILE_SOURCE		Large File Support
+//		<http://ftp.sas.com/standards/large.file/x_open.20Mar96.html>
+
+// kept in sync with MAXNAMLEN
+
+// IEEE Std 1003.1c-95, adopted in X/Open CAE Specification Issue 5 Version 2
+
+// X/Open CAE Specification Issue 5 Version 2
+
+//	$NetBSD: ioccom.h,v 1.13 2019/05/26 10:21:33 hannken Exp $
+
+// -
+// Copyright (c) 1982, 1986, 1990, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ioccom.h	8.3 (Berkeley) 1/9/95
+
+// Ioctl's have the command encoded in the lower word, and the size of
+// any in or out parameters in the upper word.  The high 3 bits of the
+// upper word are used to encode the in/out status of the parameter.
+//
+//	 31 29 28                     16 15            8 7             0
+//	+---------------------------------------------------------------+
+//	| I/O | Parameter Length        | Command Group | Command       |
+//	+---------------------------------------------------------------+
+
+// no parameters
+// copy parameters out
+// copy parameters in
+// copy parameters in and out
+// mask for IN/OUT/VOID
+
+// this should be _IORW, but stdio got there first
+
+// Tty ioctl's except for those supported only for backwards compatibility
+// with the old tty driver.
+
+// Window/terminal size structure.  This information is stored by the kernel
+// in order to provide a consistent interface, but is not used by the kernel.
+type Winsize = struct {
+	Fws_row    uint16
+	Fws_col    uint16
+	Fws_xpixel uint16
+	Fws_ypixel uint16
+} /* ttycom.h:54:1 */
+
+// The following are not exposed when imported via <termios.h>
+// when _POSIX_SOURCE (et.al.) is defined (and hence _NETBSD_SOURCE
+// is not, unless that is added manually.)
+
+// ptmget, for /dev/ptm pty getting ioctl TIOCPTMGET, and for TIOCPTSNAME
+type Ptmget = struct {
+	Fcfd int32
+	Fsfd int32
+	Fcn  [1024]uint8
+	Fsn  [1024]uint8
+} /* ttycom.h:74:1 */
+
+// 8-10 compat
+// 15 unused
+// 17-18 compat
+
+// This is the maximum length of a line discipline's name.
+type Linedn_t = [32]uint8 /* ttycom.h:111:14 */
+
+// END OF PROTECTED INCLUDE.
+
+//	$NetBSD: ttydefaults.h,v 1.16 2008/05/24 14:06:39 yamt Exp $
+
+// -
+// Copyright (c) 1982, 1986, 1993
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttydefaults.h	8.4 (Berkeley) 1/21/94
+
+// System wide defaults for terminal state.
+
+// Defaults on "first" open.
+
+// Control Character Defaults
+// compat
+
+// PROTECTED INCLUSION ENDS HERE
+
+// #define TTYDEFCHARS to include an array of default control characters.
+var _ uint8 /* gen.c:2:13: */
diff --git a/vendor/modernc.org/libc/termios/termios_openbsd_386.go b/vendor/modernc.org/libc/termios/termios_openbsd_386.go
new file mode 100644
index 0000000..db235e6
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/termios_openbsd_386.go
@@ -0,0 +1,779 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_openbsd_386.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+import (
+	"math"
+	"reflect"
+	"sync/atomic"
+	"unsafe"
+)
+
+var _ = math.Pi
+var _ reflect.Kind
+var _ atomic.Value
+var _ unsafe.Pointer
+
+const (
+	ALTWERASE            = 0x00000200 // termios.h:172:1:
+	B0                   = 0          // termios.h:212:1:
+	B110                 = 110        // termios.h:215:1:
+	B115200              = 115200     // termios.h:234:1:
+	B1200                = 1200       // termios.h:221:1:
+	B134                 = 134        // termios.h:216:1:
+	B14400               = 14400      // termios.h:230:1:
+	B150                 = 150        // termios.h:217:1:
+	B1800                = 1800       // termios.h:222:1:
+	B19200               = 19200      // termios.h:226:1:
+	B200                 = 200        // termios.h:218:1:
+	B230400              = 230400     // termios.h:235:1:
+	B2400                = 2400       // termios.h:223:1:
+	B28800               = 28800      // termios.h:231:1:
+	B300                 = 300        // termios.h:219:1:
+	B38400               = 38400      // termios.h:227:1:
+	B4800                = 4800       // termios.h:224:1:
+	B50                  = 50         // termios.h:213:1:
+	B57600               = 57600      // termios.h:232:1:
+	B600                 = 600        // termios.h:220:1:
+	B7200                = 7200       // termios.h:229:1:
+	B75                  = 75         // termios.h:214:1:
+	B76800               = 76800      // termios.h:233:1:
+	B9600                = 9600       // termios.h:225:1:
+	BRKINT               = 0x00000002 // termios.h:91:1:
+	CCTS_OFLOW           = 65536      // termios.h:145:1:
+	CDISCARD             = 15         // ttydefaults.h:73:1:
+	CDSUSP               = 25         // ttydefaults.h:69:1:
+	CEOF                 = 4          // ttydefaults.h:59:1:
+	CEOT                 = 4          // ttydefaults.h:76:1:
+	CERASE               = 0177       // ttydefaults.h:61:1:
+	CFLUSH               = 15         // ttydefaults.h:80:1:
+	CHWFLOW              = 1114112    // termios.h:147:1:
+	CIGNORE              = 0x00000001 // termios.h:129:1:
+	CINTR                = 3          // ttydefaults.h:62:1:
+	CKILL                = 21         // ttydefaults.h:64:1:
+	CLNEXT               = 22         // ttydefaults.h:72:1:
+	CLOCAL               = 0x00008000 // termios.h:141:1:
+	CMIN                 = 1          // ttydefaults.h:65:1:
+	CQUIT                = 034        // ttydefaults.h:66:1:
+	CREAD                = 0x00000800 // termios.h:137:1:
+	CREPRINT             = 18         // ttydefaults.h:75:1:
+	CRPRNT               = 18         // ttydefaults.h:79:1:
+	CRTSCTS              = 0x00010000 // termios.h:143:1:
+	CRTS_IFLOW           = 65536      // termios.h:144:1:
+	CS5                  = 0x00000000 // termios.h:132:1:
+	CS6                  = 0x00000100 // termios.h:133:1:
+	CS7                  = 0x00000200 // termios.h:134:1:
+	CS8                  = 0x00000300 // termios.h:135:1:
+	CSIZE                = 0x00000300 // termios.h:131:1:
+	CSTART               = 17         // ttydefaults.h:70:1:
+	CSTOP                = 19         // ttydefaults.h:71:1:
+	CSTOPB               = 0x00000400 // termios.h:136:1:
+	CSUSP                = 26         // ttydefaults.h:67:1:
+	CTIME                = 0          // ttydefaults.h:68:1:
+	CWERASE              = 23         // ttydefaults.h:74:1:
+	ECHO                 = 0x00000008 // termios.h:163:1:
+	ECHOCTL              = 0x00000040 // termios.h:167:1:
+	ECHOE                = 0x00000002 // termios.h:161:1:
+	ECHOK                = 0x00000004 // termios.h:162:1:
+	ECHOKE               = 0x00000001 // termios.h:159:1:
+	ECHONL               = 0x00000010 // termios.h:164:1:
+	ECHOPRT              = 0x00000020 // termios.h:166:1:
+	ENDRUNDISC           = 9          // ttycom.h:149:1:
+	EXTA                 = 19200      // termios.h:236:1:
+	EXTB                 = 38400      // termios.h:237:1:
+	EXTPROC              = 0x00000800 // termios.h:175:1:
+	FLUSHO               = 0x00800000 // termios.h:178:1:
+	HUPCL                = 0x00004000 // termios.h:140:1:
+	ICANON               = 0x00000100 // termios.h:170:1:
+	ICRNL                = 0x00000100 // termios.h:98:1:
+	IEXTEN               = 0x00000400 // termios.h:174:1:
+	IGNBRK               = 0x00000001 // termios.h:90:1:
+	IGNCR                = 0x00000080 // termios.h:97:1:
+	IGNPAR               = 0x00000004 // termios.h:92:1:
+	IMAXBEL              = 0x00002000 // termios.h:104:1:
+	INLCR                = 0x00000040 // termios.h:96:1:
+	INPCK                = 0x00000010 // termios.h:94:1:
+	IOCPARM_MASK         = 0x1fff     // ioccom.h:43:1:
+	ISIG                 = 0x00000080 // termios.h:169:1:
+	ISTRIP               = 0x00000020 // termios.h:95:1:
+	IUCLC                = 0x00001000 // termios.h:103:1:
+	IXANY                = 0x00000800 // termios.h:102:1:
+	IXOFF                = 0x00000400 // termios.h:100:1:
+	IXON                 = 0x00000200 // termios.h:99:1:
+	MDMBUF               = 0x00100000 // termios.h:146:1:
+	MSTSDISC             = 8          // ttycom.h:148:1:
+	NCCS                 = 20         // termios.h:79:1:
+	NMEADISC             = 7          // ttycom.h:147:1:
+	NOFLSH               = 0x80000000 // termios.h:183:1:
+	NOKERNINFO           = 0x02000000 // termios.h:180:1:
+	OCRNL                = 0x00000010 // termios.h:119:1:
+	OLCUC                = 0x00000020 // termios.h:120:1:
+	ONLCR                = 0x00000002 // termios.h:112:1:
+	ONLRET               = 0x00000080 // termios.h:122:1:
+	ONOCR                = 0x00000040 // termios.h:121:1:
+	ONOEOT               = 0x00000008 // termios.h:116:1:
+	OPOST                = 0x00000001 // termios.h:110:1:
+	OXTABS               = 0x00000004 // termios.h:115:1:
+	PARENB               = 0x00001000 // termios.h:138:1:
+	PARMRK               = 0x00000008 // termios.h:93:1:
+	PARODD               = 0x00002000 // termios.h:139:1:
+	PENDIN               = 0x20000000 // termios.h:181:1:
+	PPPDISC              = 5          // ttycom.h:145:1:
+	SLIPDISC             = 4          // ttycom.h:144:1:
+	STRIPDISC            = 6          // ttycom.h:146:1:
+	TABLDISC             = 3          // ttycom.h:143:1:
+	TCIFLUSH             = 1          // termios.h:242:1:
+	TCIOFF               = 3          // termios.h:247:1:
+	TCIOFLUSH            = 3          // termios.h:244:1:
+	TCION                = 4          // termios.h:248:1:
+	TCOFLUSH             = 2          // termios.h:243:1:
+	TCOOFF               = 1          // termios.h:245:1:
+	TCOON                = 2          // termios.h:246:1:
+	TCSADRAIN            = 1          // termios.h:203:1:
+	TCSAFLUSH            = 2          // termios.h:204:1:
+	TCSANOW              = 0          // termios.h:202:1:
+	TCSASOFT             = 0x10       // termios.h:206:1:
+	TIOCFLAG_CLOCAL      = 0x02       // ttycom.h:131:1:
+	TIOCFLAG_CRTSCTS     = 0x04       // ttycom.h:132:1:
+	TIOCFLAG_MDMBUF      = 0x08       // ttycom.h:133:1:
+	TIOCFLAG_PPS         = 0x10       // ttycom.h:134:1:
+	TIOCFLAG_SOFTCAR     = 0x01       // ttycom.h:130:1:
+	TIOCM_CAR            = 0100       // ttycom.h:69:1:
+	TIOCM_CD             = 64         // ttycom.h:70:1:
+	TIOCM_CTS            = 0040       // ttycom.h:68:1:
+	TIOCM_DSR            = 0400       // ttycom.h:73:1:
+	TIOCM_DTR            = 0002       // ttycom.h:64:1:
+	TIOCM_LE             = 0001       // ttycom.h:63:1:
+	TIOCM_RI             = 128        // ttycom.h:72:1:
+	TIOCM_RNG            = 0200       // ttycom.h:71:1:
+	TIOCM_RTS            = 0004       // ttycom.h:65:1:
+	TIOCM_SR             = 0020       // ttycom.h:67:1:
+	TIOCM_ST             = 0010       // ttycom.h:66:1:
+	TIOCPKT_DATA         = 0x00       // ttycom.h:100:1:
+	TIOCPKT_DOSTOP       = 0x20       // ttycom.h:106:1:
+	TIOCPKT_FLUSHREAD    = 0x01       // ttycom.h:101:1:
+	TIOCPKT_FLUSHWRITE   = 0x02       // ttycom.h:102:1:
+	TIOCPKT_IOCTL        = 0x40       // ttycom.h:107:1:
+	TIOCPKT_NOSTOP       = 0x10       // ttycom.h:105:1:
+	TIOCPKT_START        = 0x08       // ttycom.h:104:1:
+	TIOCPKT_STOP         = 0x04       // ttycom.h:103:1:
+	TOSTOP               = 0x00400000 // termios.h:176:1:
+	TTYDEF_CFLAG         = 19200      // ttydefaults.h:52:1:
+	TTYDEF_IFLAG         = 11010      // ttydefaults.h:49:1:
+	TTYDEF_LFLAG         = 1483       // ttydefaults.h:51:1:
+	TTYDEF_OFLAG         = 3          // ttydefaults.h:50:1:
+	TTYDEF_SPEED         = 9600       // ttydefaults.h:53:1:
+	TTYDISC              = 0          // ttycom.h:142:1:
+	VDISCARD             = 15         // termios.h:71:1:
+	VDSUSP               = 11         // termios.h:65:1:
+	VEOF                 = 0          // termios.h:47:1:
+	VEOL                 = 1          // termios.h:48:1:
+	VEOL2                = 2          // termios.h:50:1:
+	VERASE               = 3          // termios.h:52:1:
+	VINTR                = 8          // termios.h:61:1:
+	VKILL                = 5          // termios.h:56:1:
+	VLNEXT               = 14         // termios.h:70:1:
+	VMIN                 = 16         // termios.h:73:1:
+	VQUIT                = 9          // termios.h:62:1:
+	VREPRINT             = 6          // termios.h:58:1:
+	VSTART               = 12         // termios.h:67:1:
+	VSTATUS              = 18         // termios.h:76:1:
+	VSTOP                = 13         // termios.h:68:1:
+	VSUSP                = 10         // termios.h:63:1:
+	VTIME                = 17         // termios.h:74:1:
+	VWERASE              = 4          // termios.h:54:1:
+	XCASE                = 0x01000000 // termios.h:179:1:
+	X_FILE_OFFSET_BITS   = 64         // <builtin>:25:1:
+	X_ILP32              = 1          // <predefined>:1:1:
+	X_MACHINE_CDEFS_H_   = 0          // cdefs.h:9:1:
+	X_MACHINE__TYPES_H_  = 0          // _types.h:36:1:
+	X_MAX_PAGE_SHIFT     = 12         // _types.h:52:1:
+	X_PID_T_DEFINED_     = 0          // termios.h:254:1:
+	X_POSIX_VDISABLE     = 255        // termios.h:81:1:
+	X_STACKALIGNBYTES    = 15         // _types.h:49:1:
+	X_SYS_CDEFS_H_       = 0          // cdefs.h:39:1:
+	X_SYS_IOCCOM_H_      = 0          // ioccom.h:36:1:
+	X_SYS_TERMIOS_H_     = 0          // termios.h:36:1:
+	X_SYS_TTYCOM_H_      = 0          // ttycom.h:41:1:
+	X_SYS_TTYDEFAULTS_H_ = 0          // ttydefaults.h:44:1:
+	X_SYS__TYPES_H_      = 0          // _types.h:35:1:
+	I386                 = 1          // <predefined>:339:1:
+	Unix                 = 1          // <predefined>:340:1:
+)
+
+type Ptrdiff_t = int32 /* <builtin>:3:26 */
+
+type Size_t = uint32 /* <builtin>:9:23 */
+
+type Wchar_t = int32 /* <builtin>:15:24 */
+
+type X__builtin_va_list = uintptr /* <builtin>:46:14 */
+type X__float128 = float64        /* <builtin>:47:21 */
+
+//	$OpenBSD: termios.h,v 1.13 2016/09/20 21:10:22 fcambus Exp $
+//	$NetBSD: termios.h,v 1.14 1996/04/09 20:55:41 cgd Exp $
+
+// Copyright (c) 1988, 1989, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)termios.h	8.3 (Berkeley) 3/28/94
+
+//	$OpenBSD: cdefs.h,v 1.43 2018/10/29 17:10:40 guenther Exp $
+//	$NetBSD: cdefs.h,v 1.16 1996/04/03 20:46:39 christos Exp $
+
+// Copyright (c) 1991, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// This code is derived from software contributed to Berkeley by
+// Berkeley Software Design, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)cdefs.h	8.7 (Berkeley) 1/21/94
+
+//	$OpenBSD: cdefs.h,v 1.10 2013/03/28 17:30:45 martynas Exp $
+
+// Written by J.T. Conklin <jtc@wimsey.com> 01/17/95.
+// Public domain.
+
+// Macro to test if we're using a specific version of gcc or later.
+
+// The __CONCAT macro is used to concatenate parts of symbol names, e.g.
+// with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
+// The __CONCAT macro is a bit tricky -- make sure you don't put spaces
+// in between its arguments.  Do not use __CONCAT on double-quoted strings,
+// such as those from the __STRING macro: to concatenate strings just put
+// them next to each other.
+
+// GCC1 and some versions of GCC2 declare dead (non-returning) and
+// pure (no side effects) functions using "volatile" and "const";
+// unfortunately, these then cause warnings under "-ansi -pedantic".
+// GCC >= 2.5 uses the __attribute__((attrs)) style.  All of these
+// work for GNU C++ (modulo a slight glitch in the C++ grammar in
+// the distribution version of 2.5.5).
+
+// __returns_twice makes the compiler not assume the function
+// only returns once.  This affects registerisation of variables:
+// even local variables need to be in memory across such a call.
+// Example: setjmp()
+
+// __only_inline makes the compiler only use this function definition
+// for inlining; references that can't be inlined will be left as
+// external references instead of generating a local copy.  The
+// matching library should include a simple extern definition for
+// the function to handle those references.  c.f. ctype.h
+
+// GNU C version 2.96 adds explicit branch prediction so that
+// the CPU back-end can hint the processor and also so that
+// code blocks can be reordered such that the predicted path
+// sees a more linear flow, thus improving cache behavior, etc.
+//
+// The following two macros provide us with a way to utilize this
+// compiler feature.  Use __predict_true() if you expect the expression
+// to evaluate to true, and __predict_false() if you expect the
+// expression to evaluate to false.
+//
+// A few notes about usage:
+//
+//	* Generally, __predict_false() error condition checks (unless
+//	  you have some _strong_ reason to do otherwise, in which case
+//	  document it), and/or __predict_true() `no-error' condition
+//	  checks, assuming you want to optimize for the no-error case.
+//
+//	* Other than that, if you don't know the likelihood of a test
+//	  succeeding from empirical or other `hard' evidence, don't
+//	  make predictions.
+//
+//	* These are meant to be used in places that are run `a lot'.
+//	  It is wasteful to make predictions in code that is run
+//	  seldomly (e.g. at subsystem initialization time) as the
+//	  basic block reordering that this affects can often generate
+//	  larger code.
+
+// Delete pseudo-keywords wherever they are not available or needed.
+
+// The __packed macro indicates that a variable or structure members
+// should have the smallest possible alignment, despite any host CPU
+// alignment requirements.
+//
+// The __aligned(x) macro specifies the minimum alignment of a
+// variable or structure.
+//
+// These macros together are useful for describing the layout and
+// alignment of messages exchanged with hardware or other systems.
+
+// "The nice thing about standards is that there are so many to choose from."
+// There are a number of "feature test macros" specified by (different)
+// standards that determine which interfaces and types the header files
+// should expose.
+//
+// Because of inconsistencies in these macros, we define our own
+// set in the private name space that end in _VISIBLE.  These are
+// always defined and so headers can test their values easily.
+// Things can get tricky when multiple feature macros are defined.
+// We try to take the union of all the features requested.
+//
+// The following macros are guaranteed to have a value after cdefs.h
+// has been included:
+//	__POSIX_VISIBLE
+//	__XPG_VISIBLE
+//	__ISO_C_VISIBLE
+//	__BSD_VISIBLE
+
+// X/Open Portability Guides and Single Unix Specifications.
+// _XOPEN_SOURCE				XPG3
+// _XOPEN_SOURCE && _XOPEN_VERSION = 4		XPG4
+// _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED = 1	XPG4v2
+// _XOPEN_SOURCE == 500				XPG5
+// _XOPEN_SOURCE == 520				XPG5v2
+// _XOPEN_SOURCE == 600				POSIX 1003.1-2001 with XSI
+// _XOPEN_SOURCE == 700				POSIX 1003.1-2008 with XSI
+//
+// The XPG spec implies a specific value for _POSIX_C_SOURCE.
+
+// POSIX macros, these checks must follow the XOPEN ones above.
+//
+// _POSIX_SOURCE == 1		1003.1-1988 (superseded by _POSIX_C_SOURCE)
+// _POSIX_C_SOURCE == 1		1003.1-1990
+// _POSIX_C_SOURCE == 2		1003.2-1992
+// _POSIX_C_SOURCE == 199309L	1003.1b-1993
+// _POSIX_C_SOURCE == 199506L   1003.1c-1995, 1003.1i-1995,
+//				and the omnibus ISO/IEC 9945-1:1996
+// _POSIX_C_SOURCE == 200112L   1003.1-2001
+// _POSIX_C_SOURCE == 200809L   1003.1-2008
+//
+// The POSIX spec implies a specific value for __ISO_C_VISIBLE, though
+// this may be overridden by the _ISOC99_SOURCE macro later.
+
+// _ANSI_SOURCE means to expose ANSI C89 interfaces only.
+// If the user defines it in addition to one of the POSIX or XOPEN
+// macros, assume the POSIX/XOPEN macro(s) should take precedence.
+
+// _ISOC99_SOURCE, _ISOC11_SOURCE, __STDC_VERSION__, and __cplusplus
+// override any of the other macros since they are non-exclusive.
+
+// Finally deal with BSD-specific interfaces that are not covered
+// by any standards.  We expose these when none of the POSIX or XPG
+// macros is defined or if the user explicitly asks for them.
+
+// Default values.
+
+// Special Control Characters
+//
+// Index into c_cc[] character array.
+//
+//	Name	     Subscript	Enabled by
+//			7	   spare 1
+//			19	   spare 2
+
+// Input flags - software input processing
+
+// Output flags - software output processing
+
+// Control flags - hardware control of terminal
+
+// "Local" flags - dumping ground for other state
+//
+// Warning: some flags in this structure begin with
+// the letter "I" and look like they belong in the
+// input flag.
+
+type Tcflag_t = uint32 /* termios.h:185:22 */
+type Cc_t = uint8      /* termios.h:186:23 */
+type Speed_t = uint32  /* termios.h:187:22 */
+
+type Termios = struct {
+	Fc_iflag  Tcflag_t
+	Fc_oflag  Tcflag_t
+	Fc_cflag  Tcflag_t
+	Fc_lflag  Tcflag_t
+	Fc_cc     [20]Cc_t
+	Fc_ispeed int32
+	Fc_ospeed int32
+} /* termios.h:189:1 */
+
+// Commands passed to tcsetattr() for setting the termios structure.
+
+// Standard speeds
+
+//	$OpenBSD: _types.h,v 1.10 2022/08/06 13:31:13 semarie Exp $
+
+// -
+// Copyright (c) 1990, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)types.h	8.3 (Berkeley) 1/5/94
+
+//	$OpenBSD: _types.h,v 1.23 2018/03/05 01:15:25 deraadt Exp $
+
+// -
+// Copyright (c) 1990, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)types.h	8.3 (Berkeley) 1/5/94
+//	@(#)ansi.h	8.2 (Berkeley) 1/4/94
+
+// _ALIGN(p) rounds p (pointer or byte index) up to a correctly-aligned
+// value for all data types (int, long, ...).   The result is an
+// unsigned long and must be cast to any desired pointer type.
+//
+// _ALIGNED_POINTER is a boolean macro that checks whether an address
+// is valid to fetch data elements of type t from on this architecture.
+// This does not reflect the optimal alignment, just the possibility
+// (within reasonable limits).
+
+// 7.18.1.1 Exact-width integer types
+type X__int8_t = int8     /* _types.h:61:22 */
+type X__uint8_t = uint8   /* _types.h:62:24 */
+type X__int16_t = int16   /* _types.h:63:17 */
+type X__uint16_t = uint16 /* _types.h:64:25 */
+type X__int32_t = int32   /* _types.h:65:15 */
+type X__uint32_t = uint32 /* _types.h:66:23 */
+type X__int64_t = int64   /* _types.h:67:20 */
+type X__uint64_t = uint64 /* _types.h:68:28 */
+
+// 7.18.1.2 Minimum-width integer types
+type X__int_least8_t = X__int8_t     /* _types.h:71:19 */
+type X__uint_least8_t = X__uint8_t   /* _types.h:72:20 */
+type X__int_least16_t = X__int16_t   /* _types.h:73:20 */
+type X__uint_least16_t = X__uint16_t /* _types.h:74:21 */
+type X__int_least32_t = X__int32_t   /* _types.h:75:20 */
+type X__uint_least32_t = X__uint32_t /* _types.h:76:21 */
+type X__int_least64_t = X__int64_t   /* _types.h:77:20 */
+type X__uint_least64_t = X__uint64_t /* _types.h:78:21 */
+
+// 7.18.1.3 Fastest minimum-width integer types
+type X__int_fast8_t = X__int32_t    /* _types.h:81:20 */
+type X__uint_fast8_t = X__uint32_t  /* _types.h:82:21 */
+type X__int_fast16_t = X__int32_t   /* _types.h:83:20 */
+type X__uint_fast16_t = X__uint32_t /* _types.h:84:21 */
+type X__int_fast32_t = X__int32_t   /* _types.h:85:20 */
+type X__uint_fast32_t = X__uint32_t /* _types.h:86:21 */
+type X__int_fast64_t = X__int64_t   /* _types.h:87:20 */
+type X__uint_fast64_t = X__uint64_t /* _types.h:88:21 */
+
+// 7.18.1.4 Integer types capable of holding object pointers
+type X__intptr_t = int32   /* _types.h:103:16 */
+type X__uintptr_t = uint32 /* _types.h:104:24 */
+
+// 7.18.1.5 Greatest-width integer types
+type X__intmax_t = X__int64_t   /* _types.h:107:20 */
+type X__uintmax_t = X__uint64_t /* _types.h:108:21 */
+
+// Register size
+type X__register_t = int32 /* _types.h:111:16 */
+
+// VM system types
+type X__vaddr_t = uint32 /* _types.h:114:24 */
+type X__paddr_t = uint32 /* _types.h:115:24 */
+type X__vsize_t = uint32 /* _types.h:116:24 */
+type X__psize_t = uint32 /* _types.h:117:24 */
+
+// Standard system types
+type X__double_t = float64           /* _types.h:120:22 */
+type X__float_t = float64            /* _types.h:121:22 */
+type X__ptrdiff_t = int32            /* _types.h:122:16 */
+type X__size_t = uint32              /* _types.h:123:24 */
+type X__ssize_t = int32              /* _types.h:124:16 */
+type X__va_list = X__builtin_va_list /* _types.h:126:27 */
+
+// Wide character support types
+type X__wchar_t = int32     /* _types.h:133:15 */
+type X__wint_t = int32      /* _types.h:135:15 */
+type X__rune_t = int32      /* _types.h:136:15 */
+type X__wctrans_t = uintptr /* _types.h:137:14 */
+type X__wctype_t = uintptr  /* _types.h:138:14 */
+
+type X__blkcnt_t = X__int64_t    /* _types.h:39:19 */ // blocks allocated for file
+type X__blksize_t = X__int32_t   /* _types.h:40:19 */ // optimal blocksize for I/O
+type X__clock_t = X__int64_t     /* _types.h:41:19 */ // ticks in CLOCKS_PER_SEC
+type X__clockid_t = X__int32_t   /* _types.h:42:19 */ // CLOCK_* identifiers
+type X__cpuid_t = uint32         /* _types.h:43:23 */ // CPU id
+type X__dev_t = X__int32_t       /* _types.h:44:19 */ // device number
+type X__fixpt_t = X__uint32_t    /* _types.h:45:20 */ // fixed point number
+type X__fsblkcnt_t = X__uint64_t /* _types.h:46:20 */ // file system block count
+type X__fsfilcnt_t = X__uint64_t /* _types.h:47:20 */ // file system file count
+type X__gid_t = X__uint32_t      /* _types.h:48:20 */ // group id
+type X__id_t = X__uint32_t       /* _types.h:49:20 */ // may contain pid, uid or gid
+type X__in_addr_t = X__uint32_t  /* _types.h:50:20 */ // base type for internet address
+type X__in_port_t = X__uint16_t  /* _types.h:51:20 */ // IP port type
+type X__ino_t = X__uint64_t      /* _types.h:52:20 */ // inode number
+type X__key_t = int32            /* _types.h:53:15 */ // IPC key (for Sys V IPC)
+type X__mode_t = X__uint32_t     /* _types.h:54:20 */ // permissions
+type X__nlink_t = X__uint32_t    /* _types.h:55:20 */ // link count
+type X__off_t = X__int64_t       /* _types.h:56:19 */ // file offset or size
+type X__pid_t = X__int32_t       /* _types.h:57:19 */ // process id
+type X__rlim_t = X__uint64_t     /* _types.h:58:20 */ // resource limit
+type X__sa_family_t = X__uint8_t /* _types.h:59:19 */ // sockaddr address family type
+type X__segsz_t = X__int32_t     /* _types.h:60:19 */ // segment size
+type X__socklen_t = X__uint32_t  /* _types.h:61:20 */ // length type for network syscalls
+type X__suseconds_t = int32      /* _types.h:62:15 */ // microseconds (signed)
+type X__time_t = X__int64_t      /* _types.h:63:19 */ // epoch time
+type X__timer_t = X__int32_t     /* _types.h:64:19 */ // POSIX timer identifiers
+type X__uid_t = X__uint32_t      /* _types.h:65:20 */ // user id
+type X__useconds_t = X__uint32_t /* _types.h:66:20 */ // microseconds
+
+// mbstate_t is an opaque object to keep conversion state, during multibyte
+// stream conversions. The content must not be referenced by user programs.
+type X__mbstate_t = struct {
+	F__ccgo_pad1 [0]uint32
+	F__mbstate8  [128]int8
+} /* _types.h:75:3 */
+
+type Pid_t = X__pid_t /* termios.h:255:18 */
+
+// Include tty ioctl's that aren't just for backwards compatibility
+// with the old tty driver.  These ioctl definitions were previously
+// in <sys/ioctl.h>.
+//	$OpenBSD: ttycom.h,v 1.17 2018/06/16 13:55:03 deraadt Exp $
+//	$NetBSD: ttycom.h,v 1.4 1996/05/19 17:17:53 jonathan Exp $
+
+// -
+// Copyright (c) 1982, 1986, 1990, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttycom.h	8.1 (Berkeley) 3/28/94
+
+//	$OpenBSD: ioccom.h,v 1.5 2013/03/22 21:22:05 deraadt Exp $
+//	$NetBSD: ioccom.h,v 1.4 1994/10/30 21:49:56 cgd Exp $
+
+// -
+// Copyright (c) 1982, 1986, 1990, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ioccom.h	8.2 (Berkeley) 3/28/94
+
+// Ioctl's have the command encoded in the lower word, and the size of
+// any in or out parameters in the upper word.  The high 3 bits of the
+// upper word are used to encode the in/out status of the parameter.
+
+// no parameters
+// copy parameters out
+// copy parameters in
+// copy parameters in and out
+// mask for IN/OUT/VOID
+
+// this should be _IORW, but stdio got there first
+
+// Tty ioctl's.
+
+// Window/terminal size structure.  This information is stored by the kernel
+// in order to provide a consistent interface, but is not used by the kernel.
+type Winsize = struct {
+	Fws_row    uint16
+	Fws_col    uint16
+	Fws_xpixel uint16
+	Fws_ypixel uint16
+} /* ttycom.h:51:1 */
+
+type Tstamps = struct {
+	Fts_set int32
+	Fts_clr int32
+} /* ttycom.h:58:1 */
+
+// 8-10 compat
+// 15 unused
+// 17-18 compat
+// 127-124 compat
+// 117-116 compat
+
+// Backwards compatibility
+
+// END OF PROTECTED INCLUDE.
+
+//	$OpenBSD: ttydefaults.h,v 1.7 2019/03/12 11:01:25 nicm Exp $
+//	$NetBSD: ttydefaults.h,v 1.8 1996/04/09 20:55:45 cgd Exp $
+
+// -
+// Copyright (c) 1982, 1986, 1993
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttydefaults.h	8.4 (Berkeley) 1/21/94
+
+// System wide defaults for terminal state.
+
+// Defaults on "first" open.
+
+// Control Character Defaults
+// compat
+
+// PROTECTED INCLUSION ENDS HERE
+
+// #define TTYDEFCHARS to include an array of default control characters.
+var _ int8 /* gen.c:2:13: */
diff --git a/vendor/modernc.org/libc/termios/termios_openbsd_amd64.go b/vendor/modernc.org/libc/termios/termios_openbsd_amd64.go
new file mode 100644
index 0000000..baf9ce5
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/termios_openbsd_amd64.go
@@ -0,0 +1,788 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_openbsd_amd64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+import (
+	"math"
+	"reflect"
+	"sync/atomic"
+	"unsafe"
+)
+
+var _ = math.Pi
+var _ reflect.Kind
+var _ atomic.Value
+var _ unsafe.Pointer
+
+const (
+	ALTWERASE            = 0x00000200 // termios.h:172:1:
+	B0                   = 0          // termios.h:212:1:
+	B110                 = 110        // termios.h:215:1:
+	B115200              = 115200     // termios.h:234:1:
+	B1200                = 1200       // termios.h:221:1:
+	B134                 = 134        // termios.h:216:1:
+	B14400               = 14400      // termios.h:230:1:
+	B150                 = 150        // termios.h:217:1:
+	B1800                = 1800       // termios.h:222:1:
+	B19200               = 19200      // termios.h:226:1:
+	B200                 = 200        // termios.h:218:1:
+	B230400              = 230400     // termios.h:235:1:
+	B2400                = 2400       // termios.h:223:1:
+	B28800               = 28800      // termios.h:231:1:
+	B300                 = 300        // termios.h:219:1:
+	B38400               = 38400      // termios.h:227:1:
+	B4800                = 4800       // termios.h:224:1:
+	B50                  = 50         // termios.h:213:1:
+	B57600               = 57600      // termios.h:232:1:
+	B600                 = 600        // termios.h:220:1:
+	B7200                = 7200       // termios.h:229:1:
+	B75                  = 75         // termios.h:214:1:
+	B76800               = 76800      // termios.h:233:1:
+	B9600                = 9600       // termios.h:225:1:
+	BRKINT               = 0x00000002 // termios.h:91:1:
+	CCTS_OFLOW           = 65536      // termios.h:145:1:
+	CDISCARD             = 15         // ttydefaults.h:73:1:
+	CDSUSP               = 25         // ttydefaults.h:69:1:
+	CEOF                 = 4          // ttydefaults.h:59:1:
+	CEOT                 = 4          // ttydefaults.h:76:1:
+	CERASE               = 0177       // ttydefaults.h:61:1:
+	CFLUSH               = 15         // ttydefaults.h:80:1:
+	CHWFLOW              = 1114112    // termios.h:147:1:
+	CIGNORE              = 0x00000001 // termios.h:129:1:
+	CINTR                = 3          // ttydefaults.h:62:1:
+	CKILL                = 21         // ttydefaults.h:64:1:
+	CLNEXT               = 22         // ttydefaults.h:72:1:
+	CLOCAL               = 0x00008000 // termios.h:141:1:
+	CMIN                 = 1          // ttydefaults.h:65:1:
+	CQUIT                = 034        // ttydefaults.h:66:1:
+	CREAD                = 0x00000800 // termios.h:137:1:
+	CREPRINT             = 18         // ttydefaults.h:75:1:
+	CRPRNT               = 18         // ttydefaults.h:79:1:
+	CRTSCTS              = 0x00010000 // termios.h:143:1:
+	CRTS_IFLOW           = 65536      // termios.h:144:1:
+	CS5                  = 0x00000000 // termios.h:132:1:
+	CS6                  = 0x00000100 // termios.h:133:1:
+	CS7                  = 0x00000200 // termios.h:134:1:
+	CS8                  = 0x00000300 // termios.h:135:1:
+	CSIZE                = 0x00000300 // termios.h:131:1:
+	CSTART               = 17         // ttydefaults.h:70:1:
+	CSTOP                = 19         // ttydefaults.h:71:1:
+	CSTOPB               = 0x00000400 // termios.h:136:1:
+	CSUSP                = 26         // ttydefaults.h:67:1:
+	CTIME                = 0          // ttydefaults.h:68:1:
+	CWERASE              = 23         // ttydefaults.h:74:1:
+	ECHO                 = 0x00000008 // termios.h:163:1:
+	ECHOCTL              = 0x00000040 // termios.h:167:1:
+	ECHOE                = 0x00000002 // termios.h:161:1:
+	ECHOK                = 0x00000004 // termios.h:162:1:
+	ECHOKE               = 0x00000001 // termios.h:159:1:
+	ECHONL               = 0x00000010 // termios.h:164:1:
+	ECHOPRT              = 0x00000020 // termios.h:166:1:
+	ENDRUNDISC           = 9          // ttycom.h:149:1:
+	EXTA                 = 19200      // termios.h:236:1:
+	EXTB                 = 38400      // termios.h:237:1:
+	EXTPROC              = 0x00000800 // termios.h:175:1:
+	FLUSHO               = 0x00800000 // termios.h:178:1:
+	HUPCL                = 0x00004000 // termios.h:140:1:
+	ICANON               = 0x00000100 // termios.h:170:1:
+	ICRNL                = 0x00000100 // termios.h:98:1:
+	IEXTEN               = 0x00000400 // termios.h:174:1:
+	IGNBRK               = 0x00000001 // termios.h:90:1:
+	IGNCR                = 0x00000080 // termios.h:97:1:
+	IGNPAR               = 0x00000004 // termios.h:92:1:
+	IMAXBEL              = 0x00002000 // termios.h:104:1:
+	INLCR                = 0x00000040 // termios.h:96:1:
+	INPCK                = 0x00000010 // termios.h:94:1:
+	IOCPARM_MASK         = 0x1fff     // ioccom.h:43:1:
+	ISIG                 = 0x00000080 // termios.h:169:1:
+	ISTRIP               = 0x00000020 // termios.h:95:1:
+	IUCLC                = 0x00001000 // termios.h:103:1:
+	IXANY                = 0x00000800 // termios.h:102:1:
+	IXOFF                = 0x00000400 // termios.h:100:1:
+	IXON                 = 0x00000200 // termios.h:99:1:
+	MDMBUF               = 0x00100000 // termios.h:146:1:
+	MSTSDISC             = 8          // ttycom.h:148:1:
+	NCCS                 = 20         // termios.h:79:1:
+	NMEADISC             = 7          // ttycom.h:147:1:
+	NOFLSH               = 0x80000000 // termios.h:183:1:
+	NOKERNINFO           = 0x02000000 // termios.h:180:1:
+	OCRNL                = 0x00000010 // termios.h:119:1:
+	OLCUC                = 0x00000020 // termios.h:120:1:
+	ONLCR                = 0x00000002 // termios.h:112:1:
+	ONLRET               = 0x00000080 // termios.h:122:1:
+	ONOCR                = 0x00000040 // termios.h:121:1:
+	ONOEOT               = 0x00000008 // termios.h:116:1:
+	OPOST                = 0x00000001 // termios.h:110:1:
+	OXTABS               = 0x00000004 // termios.h:115:1:
+	PARENB               = 0x00001000 // termios.h:138:1:
+	PARMRK               = 0x00000008 // termios.h:93:1:
+	PARODD               = 0x00002000 // termios.h:139:1:
+	PENDIN               = 0x20000000 // termios.h:181:1:
+	PPPDISC              = 5          // ttycom.h:145:1:
+	SLIPDISC             = 4          // ttycom.h:144:1:
+	STRIPDISC            = 6          // ttycom.h:146:1:
+	TABLDISC             = 3          // ttycom.h:143:1:
+	TCIFLUSH             = 1          // termios.h:242:1:
+	TCIOFF               = 3          // termios.h:247:1:
+	TCIOFLUSH            = 3          // termios.h:244:1:
+	TCION                = 4          // termios.h:248:1:
+	TCOFLUSH             = 2          // termios.h:243:1:
+	TCOOFF               = 1          // termios.h:245:1:
+	TCOON                = 2          // termios.h:246:1:
+	TCSADRAIN            = 1          // termios.h:203:1:
+	TCSAFLUSH            = 2          // termios.h:204:1:
+	TCSANOW              = 0          // termios.h:202:1:
+	TCSASOFT             = 0x10       // termios.h:206:1:
+	TIOCFLAG_CLOCAL      = 0x02       // ttycom.h:131:1:
+	TIOCFLAG_CRTSCTS     = 0x04       // ttycom.h:132:1:
+	TIOCFLAG_MDMBUF      = 0x08       // ttycom.h:133:1:
+	TIOCFLAG_PPS         = 0x10       // ttycom.h:134:1:
+	TIOCFLAG_SOFTCAR     = 0x01       // ttycom.h:130:1:
+	TIOCM_CAR            = 0100       // ttycom.h:69:1:
+	TIOCM_CD             = 64         // ttycom.h:70:1:
+	TIOCM_CTS            = 0040       // ttycom.h:68:1:
+	TIOCM_DSR            = 0400       // ttycom.h:73:1:
+	TIOCM_DTR            = 0002       // ttycom.h:64:1:
+	TIOCM_LE             = 0001       // ttycom.h:63:1:
+	TIOCM_RI             = 128        // ttycom.h:72:1:
+	TIOCM_RNG            = 0200       // ttycom.h:71:1:
+	TIOCM_RTS            = 0004       // ttycom.h:65:1:
+	TIOCM_SR             = 0020       // ttycom.h:67:1:
+	TIOCM_ST             = 0010       // ttycom.h:66:1:
+	TIOCPKT_DATA         = 0x00       // ttycom.h:100:1:
+	TIOCPKT_DOSTOP       = 0x20       // ttycom.h:106:1:
+	TIOCPKT_FLUSHREAD    = 0x01       // ttycom.h:101:1:
+	TIOCPKT_FLUSHWRITE   = 0x02       // ttycom.h:102:1:
+	TIOCPKT_IOCTL        = 0x40       // ttycom.h:107:1:
+	TIOCPKT_NOSTOP       = 0x10       // ttycom.h:105:1:
+	TIOCPKT_START        = 0x08       // ttycom.h:104:1:
+	TIOCPKT_STOP         = 0x04       // ttycom.h:103:1:
+	TOSTOP               = 0x00400000 // termios.h:176:1:
+	TTYDEF_CFLAG         = 19200      // ttydefaults.h:52:1:
+	TTYDEF_IFLAG         = 11010      // ttydefaults.h:49:1:
+	TTYDEF_LFLAG         = 1483       // ttydefaults.h:51:1:
+	TTYDEF_OFLAG         = 3          // ttydefaults.h:50:1:
+	TTYDEF_SPEED         = 9600       // ttydefaults.h:53:1:
+	TTYDISC              = 0          // ttycom.h:142:1:
+	VDISCARD             = 15         // termios.h:71:1:
+	VDSUSP               = 11         // termios.h:65:1:
+	VEOF                 = 0          // termios.h:47:1:
+	VEOL                 = 1          // termios.h:48:1:
+	VEOL2                = 2          // termios.h:50:1:
+	VERASE               = 3          // termios.h:52:1:
+	VINTR                = 8          // termios.h:61:1:
+	VKILL                = 5          // termios.h:56:1:
+	VLNEXT               = 14         // termios.h:70:1:
+	VMIN                 = 16         // termios.h:73:1:
+	VQUIT                = 9          // termios.h:62:1:
+	VREPRINT             = 6          // termios.h:58:1:
+	VSTART               = 12         // termios.h:67:1:
+	VSTATUS              = 18         // termios.h:76:1:
+	VSTOP                = 13         // termios.h:68:1:
+	VSUSP                = 10         // termios.h:63:1:
+	VTIME                = 17         // termios.h:74:1:
+	VWERASE              = 4          // termios.h:54:1:
+	XCASE                = 0x01000000 // termios.h:179:1:
+	X_FILE_OFFSET_BITS   = 64         // <builtin>:25:1:
+	X_LP64               = 1          // <predefined>:1:1:
+	X_MACHINE_CDEFS_H_   = 0          // cdefs.h:9:1:
+	X_MACHINE__TYPES_H_  = 0          // _types.h:36:1:
+	X_MAX_PAGE_SHIFT     = 12         // _types.h:52:1:
+	X_PID_T_DEFINED_     = 0          // termios.h:254:1:
+	X_POSIX_VDISABLE     = 255        // termios.h:81:1:
+	X_RET_PROTECTOR      = 1          // <predefined>:2:1:
+	X_STACKALIGNBYTES    = 15         // _types.h:49:1:
+	X_SYS_CDEFS_H_       = 0          // cdefs.h:39:1:
+	X_SYS_IOCCOM_H_      = 0          // ioccom.h:36:1:
+	X_SYS_TERMIOS_H_     = 0          // termios.h:36:1:
+	X_SYS_TTYCOM_H_      = 0          // ttycom.h:41:1:
+	X_SYS_TTYDEFAULTS_H_ = 0          // ttydefaults.h:44:1:
+	X_SYS__TYPES_H_      = 0          // _types.h:35:1:
+	Unix                 = 1          // <predefined>:344:1:
+)
+
+type Ptrdiff_t = int64 /* <builtin>:3:26 */
+
+type Size_t = uint64 /* <builtin>:9:23 */
+
+type Wchar_t = int32 /* <builtin>:15:24 */
+
+type X__int128_t = struct {
+	Flo int64
+	Fhi int64
+} /* <builtin>:21:43 */ // must match modernc.org/mathutil.Int128
+type X__uint128_t = struct {
+	Flo uint64
+	Fhi uint64
+} /* <builtin>:22:44 */ // must match modernc.org/mathutil.Int128
+
+type X__builtin_va_list = uintptr /* <builtin>:46:14 */
+type X__float128 = float64        /* <builtin>:47:21 */
+
+//	$OpenBSD: termios.h,v 1.13 2016/09/20 21:10:22 fcambus Exp $
+//	$NetBSD: termios.h,v 1.14 1996/04/09 20:55:41 cgd Exp $
+
+// Copyright (c) 1988, 1989, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)termios.h	8.3 (Berkeley) 3/28/94
+
+//	$OpenBSD: cdefs.h,v 1.43 2018/10/29 17:10:40 guenther Exp $
+//	$NetBSD: cdefs.h,v 1.16 1996/04/03 20:46:39 christos Exp $
+
+// Copyright (c) 1991, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// This code is derived from software contributed to Berkeley by
+// Berkeley Software Design, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)cdefs.h	8.7 (Berkeley) 1/21/94
+
+//	$OpenBSD: cdefs.h,v 1.3 2013/03/28 17:30:45 martynas Exp $
+
+// Written by J.T. Conklin <jtc@wimsey.com> 01/17/95.
+// Public domain.
+
+// Macro to test if we're using a specific version of gcc or later.
+
+// The __CONCAT macro is used to concatenate parts of symbol names, e.g.
+// with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
+// The __CONCAT macro is a bit tricky -- make sure you don't put spaces
+// in between its arguments.  Do not use __CONCAT on double-quoted strings,
+// such as those from the __STRING macro: to concatenate strings just put
+// them next to each other.
+
+// GCC1 and some versions of GCC2 declare dead (non-returning) and
+// pure (no side effects) functions using "volatile" and "const";
+// unfortunately, these then cause warnings under "-ansi -pedantic".
+// GCC >= 2.5 uses the __attribute__((attrs)) style.  All of these
+// work for GNU C++ (modulo a slight glitch in the C++ grammar in
+// the distribution version of 2.5.5).
+
+// __returns_twice makes the compiler not assume the function
+// only returns once.  This affects registerisation of variables:
+// even local variables need to be in memory across such a call.
+// Example: setjmp()
+
+// __only_inline makes the compiler only use this function definition
+// for inlining; references that can't be inlined will be left as
+// external references instead of generating a local copy.  The
+// matching library should include a simple extern definition for
+// the function to handle those references.  c.f. ctype.h
+
+// GNU C version 2.96 adds explicit branch prediction so that
+// the CPU back-end can hint the processor and also so that
+// code blocks can be reordered such that the predicted path
+// sees a more linear flow, thus improving cache behavior, etc.
+//
+// The following two macros provide us with a way to utilize this
+// compiler feature.  Use __predict_true() if you expect the expression
+// to evaluate to true, and __predict_false() if you expect the
+// expression to evaluate to false.
+//
+// A few notes about usage:
+//
+//	* Generally, __predict_false() error condition checks (unless
+//	  you have some _strong_ reason to do otherwise, in which case
+//	  document it), and/or __predict_true() `no-error' condition
+//	  checks, assuming you want to optimize for the no-error case.
+//
+//	* Other than that, if you don't know the likelihood of a test
+//	  succeeding from empirical or other `hard' evidence, don't
+//	  make predictions.
+//
+//	* These are meant to be used in places that are run `a lot'.
+//	  It is wasteful to make predictions in code that is run
+//	  seldomly (e.g. at subsystem initialization time) as the
+//	  basic block reordering that this affects can often generate
+//	  larger code.
+
+// Delete pseudo-keywords wherever they are not available or needed.
+
+// The __packed macro indicates that a variable or structure members
+// should have the smallest possible alignment, despite any host CPU
+// alignment requirements.
+//
+// The __aligned(x) macro specifies the minimum alignment of a
+// variable or structure.
+//
+// These macros together are useful for describing the layout and
+// alignment of messages exchanged with hardware or other systems.
+
+// "The nice thing about standards is that there are so many to choose from."
+// There are a number of "feature test macros" specified by (different)
+// standards that determine which interfaces and types the header files
+// should expose.
+//
+// Because of inconsistencies in these macros, we define our own
+// set in the private name space that end in _VISIBLE.  These are
+// always defined and so headers can test their values easily.
+// Things can get tricky when multiple feature macros are defined.
+// We try to take the union of all the features requested.
+//
+// The following macros are guaranteed to have a value after cdefs.h
+// has been included:
+//	__POSIX_VISIBLE
+//	__XPG_VISIBLE
+//	__ISO_C_VISIBLE
+//	__BSD_VISIBLE
+
+// X/Open Portability Guides and Single Unix Specifications.
+// _XOPEN_SOURCE				XPG3
+// _XOPEN_SOURCE && _XOPEN_VERSION = 4		XPG4
+// _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED = 1	XPG4v2
+// _XOPEN_SOURCE == 500				XPG5
+// _XOPEN_SOURCE == 520				XPG5v2
+// _XOPEN_SOURCE == 600				POSIX 1003.1-2001 with XSI
+// _XOPEN_SOURCE == 700				POSIX 1003.1-2008 with XSI
+//
+// The XPG spec implies a specific value for _POSIX_C_SOURCE.
+
+// POSIX macros, these checks must follow the XOPEN ones above.
+//
+// _POSIX_SOURCE == 1		1003.1-1988 (superseded by _POSIX_C_SOURCE)
+// _POSIX_C_SOURCE == 1		1003.1-1990
+// _POSIX_C_SOURCE == 2		1003.2-1992
+// _POSIX_C_SOURCE == 199309L	1003.1b-1993
+// _POSIX_C_SOURCE == 199506L   1003.1c-1995, 1003.1i-1995,
+//				and the omnibus ISO/IEC 9945-1:1996
+// _POSIX_C_SOURCE == 200112L   1003.1-2001
+// _POSIX_C_SOURCE == 200809L   1003.1-2008
+//
+// The POSIX spec implies a specific value for __ISO_C_VISIBLE, though
+// this may be overridden by the _ISOC99_SOURCE macro later.
+
+// _ANSI_SOURCE means to expose ANSI C89 interfaces only.
+// If the user defines it in addition to one of the POSIX or XOPEN
+// macros, assume the POSIX/XOPEN macro(s) should take precedence.
+
+// _ISOC99_SOURCE, _ISOC11_SOURCE, __STDC_VERSION__, and __cplusplus
+// override any of the other macros since they are non-exclusive.
+
+// Finally deal with BSD-specific interfaces that are not covered
+// by any standards.  We expose these when none of the POSIX or XPG
+// macros is defined or if the user explicitly asks for them.
+
+// Default values.
+
+// Special Control Characters
+//
+// Index into c_cc[] character array.
+//
+//	Name	     Subscript	Enabled by
+//			7	   spare 1
+//			19	   spare 2
+
+// Input flags - software input processing
+
+// Output flags - software output processing
+
+// Control flags - hardware control of terminal
+
+// "Local" flags - dumping ground for other state
+//
+// Warning: some flags in this structure begin with
+// the letter "I" and look like they belong in the
+// input flag.
+
+type Tcflag_t = uint32 /* termios.h:185:22 */
+type Cc_t = uint8      /* termios.h:186:23 */
+type Speed_t = uint32  /* termios.h:187:22 */
+
+type Termios = struct {
+	Fc_iflag  Tcflag_t
+	Fc_oflag  Tcflag_t
+	Fc_cflag  Tcflag_t
+	Fc_lflag  Tcflag_t
+	Fc_cc     [20]Cc_t
+	Fc_ispeed int32
+	Fc_ospeed int32
+} /* termios.h:189:1 */
+
+// Commands passed to tcsetattr() for setting the termios structure.
+
+// Standard speeds
+
+//	$OpenBSD: _types.h,v 1.10 2022/08/06 13:31:13 semarie Exp $
+
+// -
+// Copyright (c) 1990, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)types.h	8.3 (Berkeley) 1/5/94
+
+//	$OpenBSD: _types.h,v 1.17 2018/03/05 01:15:25 deraadt Exp $
+
+// -
+// Copyright (c) 1990, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)types.h	8.3 (Berkeley) 1/5/94
+//	@(#)ansi.h	8.2 (Berkeley) 1/4/94
+
+// _ALIGN(p) rounds p (pointer or byte index) up to a correctly-aligned
+// value for all data types (int, long, ...).   The result is an
+// unsigned long and must be cast to any desired pointer type.
+//
+// _ALIGNED_POINTER is a boolean macro that checks whether an address
+// is valid to fetch data elements of type t from on this architecture.
+// This does not reflect the optimal alignment, just the possibility
+// (within reasonable limits).
+
+// 7.18.1.1 Exact-width integer types
+type X__int8_t = int8     /* _types.h:61:22 */
+type X__uint8_t = uint8   /* _types.h:62:24 */
+type X__int16_t = int16   /* _types.h:63:17 */
+type X__uint16_t = uint16 /* _types.h:64:25 */
+type X__int32_t = int32   /* _types.h:65:15 */
+type X__uint32_t = uint32 /* _types.h:66:23 */
+type X__int64_t = int64   /* _types.h:67:20 */
+type X__uint64_t = uint64 /* _types.h:68:28 */
+
+// 7.18.1.2 Minimum-width integer types
+type X__int_least8_t = X__int8_t     /* _types.h:71:19 */
+type X__uint_least8_t = X__uint8_t   /* _types.h:72:20 */
+type X__int_least16_t = X__int16_t   /* _types.h:73:20 */
+type X__uint_least16_t = X__uint16_t /* _types.h:74:21 */
+type X__int_least32_t = X__int32_t   /* _types.h:75:20 */
+type X__uint_least32_t = X__uint32_t /* _types.h:76:21 */
+type X__int_least64_t = X__int64_t   /* _types.h:77:20 */
+type X__uint_least64_t = X__uint64_t /* _types.h:78:21 */
+
+// 7.18.1.3 Fastest minimum-width integer types
+type X__int_fast8_t = X__int32_t    /* _types.h:81:20 */
+type X__uint_fast8_t = X__uint32_t  /* _types.h:82:21 */
+type X__int_fast16_t = X__int32_t   /* _types.h:83:20 */
+type X__uint_fast16_t = X__uint32_t /* _types.h:84:21 */
+type X__int_fast32_t = X__int32_t   /* _types.h:85:20 */
+type X__uint_fast32_t = X__uint32_t /* _types.h:86:21 */
+type X__int_fast64_t = X__int64_t   /* _types.h:87:20 */
+type X__uint_fast64_t = X__uint64_t /* _types.h:88:21 */
+
+// 7.18.1.4 Integer types capable of holding object pointers
+type X__intptr_t = int64   /* _types.h:103:16 */
+type X__uintptr_t = uint64 /* _types.h:104:24 */
+
+// 7.18.1.5 Greatest-width integer types
+type X__intmax_t = X__int64_t   /* _types.h:107:20 */
+type X__uintmax_t = X__uint64_t /* _types.h:108:21 */
+
+// Register size
+type X__register_t = int64 /* _types.h:111:16 */
+
+// VM system types
+type X__vaddr_t = uint64 /* _types.h:114:24 */
+type X__paddr_t = uint64 /* _types.h:115:24 */
+type X__vsize_t = uint64 /* _types.h:116:24 */
+type X__psize_t = uint64 /* _types.h:117:24 */
+
+// Standard system types
+type X__double_t = float64           /* _types.h:120:18 */
+type X__float_t = float32            /* _types.h:121:17 */
+type X__ptrdiff_t = int64            /* _types.h:122:16 */
+type X__size_t = uint64              /* _types.h:123:24 */
+type X__ssize_t = int64              /* _types.h:124:16 */
+type X__va_list = X__builtin_va_list /* _types.h:126:27 */
+
+// Wide character support types
+type X__wchar_t = int32     /* _types.h:133:15 */
+type X__wint_t = int32      /* _types.h:135:15 */
+type X__rune_t = int32      /* _types.h:136:15 */
+type X__wctrans_t = uintptr /* _types.h:137:14 */
+type X__wctype_t = uintptr  /* _types.h:138:14 */
+
+type X__blkcnt_t = X__int64_t    /* _types.h:39:19 */ // blocks allocated for file
+type X__blksize_t = X__int32_t   /* _types.h:40:19 */ // optimal blocksize for I/O
+type X__clock_t = X__int64_t     /* _types.h:41:19 */ // ticks in CLOCKS_PER_SEC
+type X__clockid_t = X__int32_t   /* _types.h:42:19 */ // CLOCK_* identifiers
+type X__cpuid_t = uint64         /* _types.h:43:23 */ // CPU id
+type X__dev_t = X__int32_t       /* _types.h:44:19 */ // device number
+type X__fixpt_t = X__uint32_t    /* _types.h:45:20 */ // fixed point number
+type X__fsblkcnt_t = X__uint64_t /* _types.h:46:20 */ // file system block count
+type X__fsfilcnt_t = X__uint64_t /* _types.h:47:20 */ // file system file count
+type X__gid_t = X__uint32_t      /* _types.h:48:20 */ // group id
+type X__id_t = X__uint32_t       /* _types.h:49:20 */ // may contain pid, uid or gid
+type X__in_addr_t = X__uint32_t  /* _types.h:50:20 */ // base type for internet address
+type X__in_port_t = X__uint16_t  /* _types.h:51:20 */ // IP port type
+type X__ino_t = X__uint64_t      /* _types.h:52:20 */ // inode number
+type X__key_t = int64            /* _types.h:53:15 */ // IPC key (for Sys V IPC)
+type X__mode_t = X__uint32_t     /* _types.h:54:20 */ // permissions
+type X__nlink_t = X__uint32_t    /* _types.h:55:20 */ // link count
+type X__off_t = X__int64_t       /* _types.h:56:19 */ // file offset or size
+type X__pid_t = X__int32_t       /* _types.h:57:19 */ // process id
+type X__rlim_t = X__uint64_t     /* _types.h:58:20 */ // resource limit
+type X__sa_family_t = X__uint8_t /* _types.h:59:19 */ // sockaddr address family type
+type X__segsz_t = X__int32_t     /* _types.h:60:19 */ // segment size
+type X__socklen_t = X__uint32_t  /* _types.h:61:20 */ // length type for network syscalls
+type X__suseconds_t = int64      /* _types.h:62:15 */ // microseconds (signed)
+type X__time_t = X__int64_t      /* _types.h:63:19 */ // epoch time
+type X__timer_t = X__int32_t     /* _types.h:64:19 */ // POSIX timer identifiers
+type X__uid_t = X__uint32_t      /* _types.h:65:20 */ // user id
+type X__useconds_t = X__uint32_t /* _types.h:66:20 */ // microseconds
+
+// mbstate_t is an opaque object to keep conversion state, during multibyte
+// stream conversions. The content must not be referenced by user programs.
+type X__mbstate_t = struct {
+	F__ccgo_pad1 [0]uint64
+	F__mbstate8  [128]int8
+} /* _types.h:75:3 */
+
+type Pid_t = X__pid_t /* termios.h:255:18 */
+
+// Include tty ioctl's that aren't just for backwards compatibility
+// with the old tty driver.  These ioctl definitions were previously
+// in <sys/ioctl.h>.
+//	$OpenBSD: ttycom.h,v 1.17 2018/06/16 13:55:03 deraadt Exp $
+//	$NetBSD: ttycom.h,v 1.4 1996/05/19 17:17:53 jonathan Exp $
+
+// -
+// Copyright (c) 1982, 1986, 1990, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttycom.h	8.1 (Berkeley) 3/28/94
+
+//	$OpenBSD: ioccom.h,v 1.5 2013/03/22 21:22:05 deraadt Exp $
+//	$NetBSD: ioccom.h,v 1.4 1994/10/30 21:49:56 cgd Exp $
+
+// -
+// Copyright (c) 1982, 1986, 1990, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ioccom.h	8.2 (Berkeley) 3/28/94
+
+// Ioctl's have the command encoded in the lower word, and the size of
+// any in or out parameters in the upper word.  The high 3 bits of the
+// upper word are used to encode the in/out status of the parameter.
+
+// no parameters
+// copy parameters out
+// copy parameters in
+// copy parameters in and out
+// mask for IN/OUT/VOID
+
+// this should be _IORW, but stdio got there first
+
+// Tty ioctl's.
+
+// Window/terminal size structure.  This information is stored by the kernel
+// in order to provide a consistent interface, but is not used by the kernel.
+type Winsize = struct {
+	Fws_row    uint16
+	Fws_col    uint16
+	Fws_xpixel uint16
+	Fws_ypixel uint16
+} /* ttycom.h:51:1 */
+
+type Tstamps = struct {
+	Fts_set int32
+	Fts_clr int32
+} /* ttycom.h:58:1 */
+
+// 8-10 compat
+// 15 unused
+// 17-18 compat
+// 127-124 compat
+// 117-116 compat
+
+// Backwards compatibility
+
+// END OF PROTECTED INCLUDE.
+
+//	$OpenBSD: ttydefaults.h,v 1.7 2019/03/12 11:01:25 nicm Exp $
+//	$NetBSD: ttydefaults.h,v 1.8 1996/04/09 20:55:45 cgd Exp $
+
+// -
+// Copyright (c) 1982, 1986, 1993
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttydefaults.h	8.4 (Berkeley) 1/21/94
+
+// System wide defaults for terminal state.
+
+// Defaults on "first" open.
+
+// Control Character Defaults
+// compat
+
+// PROTECTED INCLUSION ENDS HERE
+
+// #define TTYDEFCHARS to include an array of default control characters.
+var _ int8 /* gen.c:2:13: */
diff --git a/vendor/modernc.org/libc/termios/termios_openbsd_arm64.go b/vendor/modernc.org/libc/termios/termios_openbsd_arm64.go
new file mode 100644
index 0000000..0836019
--- /dev/null
+++ b/vendor/modernc.org/libc/termios/termios_openbsd_arm64.go
@@ -0,0 +1,786 @@
+// Code generated by 'ccgo termios/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -ignore-unsupported-alignment -o termios/termios_openbsd_arm64.go -pkgname termios', DO NOT EDIT.
+
+package termios
+
+import (
+	"math"
+	"reflect"
+	"sync/atomic"
+	"unsafe"
+)
+
+var _ = math.Pi
+var _ reflect.Kind
+var _ atomic.Value
+var _ unsafe.Pointer
+
+const (
+	ALTWERASE            = 0x00000200 // termios.h:172:1:
+	B0                   = 0          // termios.h:212:1:
+	B110                 = 110        // termios.h:215:1:
+	B115200              = 115200     // termios.h:234:1:
+	B1200                = 1200       // termios.h:221:1:
+	B134                 = 134        // termios.h:216:1:
+	B14400               = 14400      // termios.h:230:1:
+	B150                 = 150        // termios.h:217:1:
+	B1800                = 1800       // termios.h:222:1:
+	B19200               = 19200      // termios.h:226:1:
+	B200                 = 200        // termios.h:218:1:
+	B230400              = 230400     // termios.h:235:1:
+	B2400                = 2400       // termios.h:223:1:
+	B28800               = 28800      // termios.h:231:1:
+	B300                 = 300        // termios.h:219:1:
+	B38400               = 38400      // termios.h:227:1:
+	B4800                = 4800       // termios.h:224:1:
+	B50                  = 50         // termios.h:213:1:
+	B57600               = 57600      // termios.h:232:1:
+	B600                 = 600        // termios.h:220:1:
+	B7200                = 7200       // termios.h:229:1:
+	B75                  = 75         // termios.h:214:1:
+	B76800               = 76800      // termios.h:233:1:
+	B9600                = 9600       // termios.h:225:1:
+	BRKINT               = 0x00000002 // termios.h:91:1:
+	CCTS_OFLOW           = 65536      // termios.h:145:1:
+	CDISCARD             = 15         // ttydefaults.h:73:1:
+	CDSUSP               = 25         // ttydefaults.h:69:1:
+	CEOF                 = 4          // ttydefaults.h:59:1:
+	CEOT                 = 4          // ttydefaults.h:76:1:
+	CERASE               = 0177       // ttydefaults.h:61:1:
+	CFLUSH               = 15         // ttydefaults.h:80:1:
+	CHWFLOW              = 1114112    // termios.h:147:1:
+	CIGNORE              = 0x00000001 // termios.h:129:1:
+	CINTR                = 3          // ttydefaults.h:62:1:
+	CKILL                = 21         // ttydefaults.h:64:1:
+	CLNEXT               = 22         // ttydefaults.h:72:1:
+	CLOCAL               = 0x00008000 // termios.h:141:1:
+	CMIN                 = 1          // ttydefaults.h:65:1:
+	CQUIT                = 034        // ttydefaults.h:66:1:
+	CREAD                = 0x00000800 // termios.h:137:1:
+	CREPRINT             = 18         // ttydefaults.h:75:1:
+	CRPRNT               = 18         // ttydefaults.h:79:1:
+	CRTSCTS              = 0x00010000 // termios.h:143:1:
+	CRTS_IFLOW           = 65536      // termios.h:144:1:
+	CS5                  = 0x00000000 // termios.h:132:1:
+	CS6                  = 0x00000100 // termios.h:133:1:
+	CS7                  = 0x00000200 // termios.h:134:1:
+	CS8                  = 0x00000300 // termios.h:135:1:
+	CSIZE                = 0x00000300 // termios.h:131:1:
+	CSTART               = 17         // ttydefaults.h:70:1:
+	CSTOP                = 19         // ttydefaults.h:71:1:
+	CSTOPB               = 0x00000400 // termios.h:136:1:
+	CSUSP                = 26         // ttydefaults.h:67:1:
+	CTIME                = 0          // ttydefaults.h:68:1:
+	CWERASE              = 23         // ttydefaults.h:74:1:
+	ECHO                 = 0x00000008 // termios.h:163:1:
+	ECHOCTL              = 0x00000040 // termios.h:167:1:
+	ECHOE                = 0x00000002 // termios.h:161:1:
+	ECHOK                = 0x00000004 // termios.h:162:1:
+	ECHOKE               = 0x00000001 // termios.h:159:1:
+	ECHONL               = 0x00000010 // termios.h:164:1:
+	ECHOPRT              = 0x00000020 // termios.h:166:1:
+	ENDRUNDISC           = 9          // ttycom.h:149:1:
+	EXTA                 = 19200      // termios.h:236:1:
+	EXTB                 = 38400      // termios.h:237:1:
+	EXTPROC              = 0x00000800 // termios.h:175:1:
+	FLUSHO               = 0x00800000 // termios.h:178:1:
+	HUPCL                = 0x00004000 // termios.h:140:1:
+	ICANON               = 0x00000100 // termios.h:170:1:
+	ICRNL                = 0x00000100 // termios.h:98:1:
+	IEXTEN               = 0x00000400 // termios.h:174:1:
+	IGNBRK               = 0x00000001 // termios.h:90:1:
+	IGNCR                = 0x00000080 // termios.h:97:1:
+	IGNPAR               = 0x00000004 // termios.h:92:1:
+	IMAXBEL              = 0x00002000 // termios.h:104:1:
+	INLCR                = 0x00000040 // termios.h:96:1:
+	INPCK                = 0x00000010 // termios.h:94:1:
+	IOCPARM_MASK         = 0x1fff     // ioccom.h:43:1:
+	ISIG                 = 0x00000080 // termios.h:169:1:
+	ISTRIP               = 0x00000020 // termios.h:95:1:
+	IUCLC                = 0x00001000 // termios.h:103:1:
+	IXANY                = 0x00000800 // termios.h:102:1:
+	IXOFF                = 0x00000400 // termios.h:100:1:
+	IXON                 = 0x00000200 // termios.h:99:1:
+	MDMBUF               = 0x00100000 // termios.h:146:1:
+	MSTSDISC             = 8          // ttycom.h:148:1:
+	NCCS                 = 20         // termios.h:79:1:
+	NMEADISC             = 7          // ttycom.h:147:1:
+	NOFLSH               = 0x80000000 // termios.h:183:1:
+	NOKERNINFO           = 0x02000000 // termios.h:180:1:
+	OCRNL                = 0x00000010 // termios.h:119:1:
+	OLCUC                = 0x00000020 // termios.h:120:1:
+	ONLCR                = 0x00000002 // termios.h:112:1:
+	ONLRET               = 0x00000080 // termios.h:122:1:
+	ONOCR                = 0x00000040 // termios.h:121:1:
+	ONOEOT               = 0x00000008 // termios.h:116:1:
+	OPOST                = 0x00000001 // termios.h:110:1:
+	OXTABS               = 0x00000004 // termios.h:115:1:
+	PARENB               = 0x00001000 // termios.h:138:1:
+	PARMRK               = 0x00000008 // termios.h:93:1:
+	PARODD               = 0x00002000 // termios.h:139:1:
+	PENDIN               = 0x20000000 // termios.h:181:1:
+	PPPDISC              = 5          // ttycom.h:145:1:
+	SLIPDISC             = 4          // ttycom.h:144:1:
+	STRIPDISC            = 6          // ttycom.h:146:1:
+	TABLDISC             = 3          // ttycom.h:143:1:
+	TCIFLUSH             = 1          // termios.h:242:1:
+	TCIOFF               = 3          // termios.h:247:1:
+	TCIOFLUSH            = 3          // termios.h:244:1:
+	TCION                = 4          // termios.h:248:1:
+	TCOFLUSH             = 2          // termios.h:243:1:
+	TCOOFF               = 1          // termios.h:245:1:
+	TCOON                = 2          // termios.h:246:1:
+	TCSADRAIN            = 1          // termios.h:203:1:
+	TCSAFLUSH            = 2          // termios.h:204:1:
+	TCSANOW              = 0          // termios.h:202:1:
+	TCSASOFT             = 0x10       // termios.h:206:1:
+	TIOCFLAG_CLOCAL      = 0x02       // ttycom.h:131:1:
+	TIOCFLAG_CRTSCTS     = 0x04       // ttycom.h:132:1:
+	TIOCFLAG_MDMBUF      = 0x08       // ttycom.h:133:1:
+	TIOCFLAG_PPS         = 0x10       // ttycom.h:134:1:
+	TIOCFLAG_SOFTCAR     = 0x01       // ttycom.h:130:1:
+	TIOCM_CAR            = 0100       // ttycom.h:69:1:
+	TIOCM_CD             = 64         // ttycom.h:70:1:
+	TIOCM_CTS            = 0040       // ttycom.h:68:1:
+	TIOCM_DSR            = 0400       // ttycom.h:73:1:
+	TIOCM_DTR            = 0002       // ttycom.h:64:1:
+	TIOCM_LE             = 0001       // ttycom.h:63:1:
+	TIOCM_RI             = 128        // ttycom.h:72:1:
+	TIOCM_RNG            = 0200       // ttycom.h:71:1:
+	TIOCM_RTS            = 0004       // ttycom.h:65:1:
+	TIOCM_SR             = 0020       // ttycom.h:67:1:
+	TIOCM_ST             = 0010       // ttycom.h:66:1:
+	TIOCPKT_DATA         = 0x00       // ttycom.h:100:1:
+	TIOCPKT_DOSTOP       = 0x20       // ttycom.h:106:1:
+	TIOCPKT_FLUSHREAD    = 0x01       // ttycom.h:101:1:
+	TIOCPKT_FLUSHWRITE   = 0x02       // ttycom.h:102:1:
+	TIOCPKT_IOCTL        = 0x40       // ttycom.h:107:1:
+	TIOCPKT_NOSTOP       = 0x10       // ttycom.h:105:1:
+	TIOCPKT_START        = 0x08       // ttycom.h:104:1:
+	TIOCPKT_STOP         = 0x04       // ttycom.h:103:1:
+	TOSTOP               = 0x00400000 // termios.h:176:1:
+	TTYDEF_CFLAG         = 19200      // ttydefaults.h:52:1:
+	TTYDEF_IFLAG         = 11010      // ttydefaults.h:49:1:
+	TTYDEF_LFLAG         = 1483       // ttydefaults.h:51:1:
+	TTYDEF_OFLAG         = 3          // ttydefaults.h:50:1:
+	TTYDEF_SPEED         = 9600       // ttydefaults.h:53:1:
+	TTYDISC              = 0          // ttycom.h:142:1:
+	VDISCARD             = 15         // termios.h:71:1:
+	VDSUSP               = 11         // termios.h:65:1:
+	VEOF                 = 0          // termios.h:47:1:
+	VEOL                 = 1          // termios.h:48:1:
+	VEOL2                = 2          // termios.h:50:1:
+	VERASE               = 3          // termios.h:52:1:
+	VINTR                = 8          // termios.h:61:1:
+	VKILL                = 5          // termios.h:56:1:
+	VLNEXT               = 14         // termios.h:70:1:
+	VMIN                 = 16         // termios.h:73:1:
+	VQUIT                = 9          // termios.h:62:1:
+	VREPRINT             = 6          // termios.h:58:1:
+	VSTART               = 12         // termios.h:67:1:
+	VSTATUS              = 18         // termios.h:76:1:
+	VSTOP                = 13         // termios.h:68:1:
+	VSUSP                = 10         // termios.h:63:1:
+	VTIME                = 17         // termios.h:74:1:
+	VWERASE              = 4          // termios.h:54:1:
+	XCASE                = 0x01000000 // termios.h:179:1:
+	X_FILE_OFFSET_BITS   = 64         // <builtin>:25:1:
+	X_LP64               = 1          // <predefined>:1:1:
+	X_MACHINE_CDEFS_H_   = 0          // cdefs.h:4:1:
+	X_MACHINE__TYPES_H_  = 0          // _types.h:35:1:
+	X_MAX_PAGE_SHIFT     = 12         // _types.h:57:1:
+	X_PID_T_DEFINED_     = 0          // termios.h:254:1:
+	X_POSIX_VDISABLE     = 255        // termios.h:81:1:
+	X_RET_PROTECTOR      = 1          // <predefined>:2:1:
+	X_STACKALIGNBYTES    = 15         // _types.h:54:1:
+	X_SYS_CDEFS_H_       = 0          // cdefs.h:39:1:
+	X_SYS_IOCCOM_H_      = 0          // ioccom.h:36:1:
+	X_SYS_TERMIOS_H_     = 0          // termios.h:36:1:
+	X_SYS_TTYCOM_H_      = 0          // ttycom.h:41:1:
+	X_SYS_TTYDEFAULTS_H_ = 0          // ttydefaults.h:44:1:
+	X_SYS__TYPES_H_      = 0          // _types.h:35:1:
+	Unix                 = 1          // <predefined>:360:1:
+)
+
+type Ptrdiff_t = int64 /* <builtin>:3:26 */
+
+type Size_t = uint64 /* <builtin>:9:23 */
+
+type Wchar_t = int32 /* <builtin>:15:24 */
+
+type X__int128_t = struct {
+	Flo int64
+	Fhi int64
+} /* <builtin>:21:43 */ // must match modernc.org/mathutil.Int128
+type X__uint128_t = struct {
+	Flo uint64
+	Fhi uint64
+} /* <builtin>:22:44 */ // must match modernc.org/mathutil.Int128
+
+type X__builtin_va_list = uintptr /* <builtin>:46:14 */
+type X__float128 = float64        /* <builtin>:47:21 */
+
+//	$OpenBSD: termios.h,v 1.13 2016/09/20 21:10:22 fcambus Exp $
+//	$NetBSD: termios.h,v 1.14 1996/04/09 20:55:41 cgd Exp $
+
+// Copyright (c) 1988, 1989, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)termios.h	8.3 (Berkeley) 3/28/94
+
+//	$OpenBSD: cdefs.h,v 1.43 2018/10/29 17:10:40 guenther Exp $
+//	$NetBSD: cdefs.h,v 1.16 1996/04/03 20:46:39 christos Exp $
+
+// Copyright (c) 1991, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// This code is derived from software contributed to Berkeley by
+// Berkeley Software Design, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)cdefs.h	8.7 (Berkeley) 1/21/94
+
+//	$OpenBSD: cdefs.h,v 1.1 2016/12/17 23:38:33 patrick Exp $
+
+// Macro to test if we're using a specific version of gcc or later.
+
+// The __CONCAT macro is used to concatenate parts of symbol names, e.g.
+// with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
+// The __CONCAT macro is a bit tricky -- make sure you don't put spaces
+// in between its arguments.  Do not use __CONCAT on double-quoted strings,
+// such as those from the __STRING macro: to concatenate strings just put
+// them next to each other.
+
+// GCC1 and some versions of GCC2 declare dead (non-returning) and
+// pure (no side effects) functions using "volatile" and "const";
+// unfortunately, these then cause warnings under "-ansi -pedantic".
+// GCC >= 2.5 uses the __attribute__((attrs)) style.  All of these
+// work for GNU C++ (modulo a slight glitch in the C++ grammar in
+// the distribution version of 2.5.5).
+
+// __returns_twice makes the compiler not assume the function
+// only returns once.  This affects registerisation of variables:
+// even local variables need to be in memory across such a call.
+// Example: setjmp()
+
+// __only_inline makes the compiler only use this function definition
+// for inlining; references that can't be inlined will be left as
+// external references instead of generating a local copy.  The
+// matching library should include a simple extern definition for
+// the function to handle those references.  c.f. ctype.h
+
+// GNU C version 2.96 adds explicit branch prediction so that
+// the CPU back-end can hint the processor and also so that
+// code blocks can be reordered such that the predicted path
+// sees a more linear flow, thus improving cache behavior, etc.
+//
+// The following two macros provide us with a way to utilize this
+// compiler feature.  Use __predict_true() if you expect the expression
+// to evaluate to true, and __predict_false() if you expect the
+// expression to evaluate to false.
+//
+// A few notes about usage:
+//
+//	* Generally, __predict_false() error condition checks (unless
+//	  you have some _strong_ reason to do otherwise, in which case
+//	  document it), and/or __predict_true() `no-error' condition
+//	  checks, assuming you want to optimize for the no-error case.
+//
+//	* Other than that, if you don't know the likelihood of a test
+//	  succeeding from empirical or other `hard' evidence, don't
+//	  make predictions.
+//
+//	* These are meant to be used in places that are run `a lot'.
+//	  It is wasteful to make predictions in code that is run
+//	  seldomly (e.g. at subsystem initialization time) as the
+//	  basic block reordering that this affects can often generate
+//	  larger code.
+
+// Delete pseudo-keywords wherever they are not available or needed.
+
+// The __packed macro indicates that a variable or structure members
+// should have the smallest possible alignment, despite any host CPU
+// alignment requirements.
+//
+// The __aligned(x) macro specifies the minimum alignment of a
+// variable or structure.
+//
+// These macros together are useful for describing the layout and
+// alignment of messages exchanged with hardware or other systems.
+
+// "The nice thing about standards is that there are so many to choose from."
+// There are a number of "feature test macros" specified by (different)
+// standards that determine which interfaces and types the header files
+// should expose.
+//
+// Because of inconsistencies in these macros, we define our own
+// set in the private name space that end in _VISIBLE.  These are
+// always defined and so headers can test their values easily.
+// Things can get tricky when multiple feature macros are defined.
+// We try to take the union of all the features requested.
+//
+// The following macros are guaranteed to have a value after cdefs.h
+// has been included:
+//	__POSIX_VISIBLE
+//	__XPG_VISIBLE
+//	__ISO_C_VISIBLE
+//	__BSD_VISIBLE
+
+// X/Open Portability Guides and Single Unix Specifications.
+// _XOPEN_SOURCE				XPG3
+// _XOPEN_SOURCE && _XOPEN_VERSION = 4		XPG4
+// _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED = 1	XPG4v2
+// _XOPEN_SOURCE == 500				XPG5
+// _XOPEN_SOURCE == 520				XPG5v2
+// _XOPEN_SOURCE == 600				POSIX 1003.1-2001 with XSI
+// _XOPEN_SOURCE == 700				POSIX 1003.1-2008 with XSI
+//
+// The XPG spec implies a specific value for _POSIX_C_SOURCE.
+
+// POSIX macros, these checks must follow the XOPEN ones above.
+//
+// _POSIX_SOURCE == 1		1003.1-1988 (superseded by _POSIX_C_SOURCE)
+// _POSIX_C_SOURCE == 1		1003.1-1990
+// _POSIX_C_SOURCE == 2		1003.2-1992
+// _POSIX_C_SOURCE == 199309L	1003.1b-1993
+// _POSIX_C_SOURCE == 199506L   1003.1c-1995, 1003.1i-1995,
+//				and the omnibus ISO/IEC 9945-1:1996
+// _POSIX_C_SOURCE == 200112L   1003.1-2001
+// _POSIX_C_SOURCE == 200809L   1003.1-2008
+//
+// The POSIX spec implies a specific value for __ISO_C_VISIBLE, though
+// this may be overridden by the _ISOC99_SOURCE macro later.
+
+// _ANSI_SOURCE means to expose ANSI C89 interfaces only.
+// If the user defines it in addition to one of the POSIX or XOPEN
+// macros, assume the POSIX/XOPEN macro(s) should take precedence.
+
+// _ISOC99_SOURCE, _ISOC11_SOURCE, __STDC_VERSION__, and __cplusplus
+// override any of the other macros since they are non-exclusive.
+
+// Finally deal with BSD-specific interfaces that are not covered
+// by any standards.  We expose these when none of the POSIX or XPG
+// macros is defined or if the user explicitly asks for them.
+
+// Default values.
+
+// Special Control Characters
+//
+// Index into c_cc[] character array.
+//
+//	Name	     Subscript	Enabled by
+//			7	   spare 1
+//			19	   spare 2
+
+// Input flags - software input processing
+
+// Output flags - software output processing
+
+// Control flags - hardware control of terminal
+
+// "Local" flags - dumping ground for other state
+//
+// Warning: some flags in this structure begin with
+// the letter "I" and look like they belong in the
+// input flag.
+
+type Tcflag_t = uint32 /* termios.h:185:22 */
+type Cc_t = uint8      /* termios.h:186:23 */
+type Speed_t = uint32  /* termios.h:187:22 */
+
+type Termios = struct {
+	Fc_iflag  Tcflag_t
+	Fc_oflag  Tcflag_t
+	Fc_cflag  Tcflag_t
+	Fc_lflag  Tcflag_t
+	Fc_cc     [20]Cc_t
+	Fc_ispeed int32
+	Fc_ospeed int32
+} /* termios.h:189:1 */
+
+// Commands passed to tcsetattr() for setting the termios structure.
+
+// Standard speeds
+
+//	$OpenBSD: _types.h,v 1.10 2022/08/06 13:31:13 semarie Exp $
+
+// -
+// Copyright (c) 1990, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)types.h	8.3 (Berkeley) 1/5/94
+
+// $OpenBSD: _types.h,v 1.4 2018/03/05 01:15:25 deraadt Exp $
+// -
+// Copyright (c) 1990, 1993
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)types.h	8.3 (Berkeley) 1/5/94
+//	@(#)ansi.h	8.2 (Berkeley) 1/4/94
+
+// _ALIGN(p) rounds p (pointer or byte index) up to a correctly-aligned
+// value for all data types (int, long, ...).   The result is an
+// unsigned long and must be cast to any desired pointer type.
+//
+// _ALIGNED_POINTER is a boolean macro that checks whether an address
+// is valid to fetch data elements of type t from on this architecture.
+// This does not reflect the optimal alignment, just the possibility
+// (within reasonable limits).
+
+// 7.18.1.1 Exact-width integer types
+type X__int8_t = int8     /* _types.h:60:22 */
+type X__uint8_t = uint8   /* _types.h:61:24 */
+type X__int16_t = int16   /* _types.h:62:17 */
+type X__uint16_t = uint16 /* _types.h:63:25 */
+type X__int32_t = int32   /* _types.h:64:15 */
+type X__uint32_t = uint32 /* _types.h:65:23 */
+// LONGLONG
+type X__int64_t = int64 /* _types.h:67:20 */
+// LONGLONG
+type X__uint64_t = uint64 /* _types.h:69:28 */
+
+// 7.18.1.2 Minimum-width integer types
+type X__int_least8_t = X__int8_t     /* _types.h:72:19 */
+type X__uint_least8_t = X__uint8_t   /* _types.h:73:20 */
+type X__int_least16_t = X__int16_t   /* _types.h:74:20 */
+type X__uint_least16_t = X__uint16_t /* _types.h:75:21 */
+type X__int_least32_t = X__int32_t   /* _types.h:76:20 */
+type X__uint_least32_t = X__uint32_t /* _types.h:77:21 */
+type X__int_least64_t = X__int64_t   /* _types.h:78:20 */
+type X__uint_least64_t = X__uint64_t /* _types.h:79:21 */
+
+// 7.18.1.3 Fastest minimum-width integer types
+type X__int_fast8_t = X__int32_t    /* _types.h:82:20 */
+type X__uint_fast8_t = X__uint32_t  /* _types.h:83:21 */
+type X__int_fast16_t = X__int32_t   /* _types.h:84:20 */
+type X__uint_fast16_t = X__uint32_t /* _types.h:85:21 */
+type X__int_fast32_t = X__int32_t   /* _types.h:86:20 */
+type X__uint_fast32_t = X__uint32_t /* _types.h:87:21 */
+type X__int_fast64_t = X__int64_t   /* _types.h:88:20 */
+type X__uint_fast64_t = X__uint64_t /* _types.h:89:21 */
+
+// 7.18.1.4 Integer types capable of holding object pointers
+type X__intptr_t = int64   /* _types.h:104:16 */
+type X__uintptr_t = uint64 /* _types.h:105:24 */
+
+// 7.18.1.5 Greatest-width integer types
+type X__intmax_t = X__int64_t   /* _types.h:108:20 */
+type X__uintmax_t = X__uint64_t /* _types.h:109:21 */
+
+// Register size
+type X__register_t = int64 /* _types.h:112:16 */
+
+// VM system types
+type X__vaddr_t = uint64 /* _types.h:115:24 */
+type X__paddr_t = uint64 /* _types.h:116:24 */
+type X__vsize_t = uint64 /* _types.h:117:24 */
+type X__psize_t = uint64 /* _types.h:118:24 */
+
+// Standard system types
+type X__double_t = float64           /* _types.h:121:18 */
+type X__float_t = float32            /* _types.h:122:17 */
+type X__ptrdiff_t = int64            /* _types.h:123:16 */
+type X__size_t = uint64              /* _types.h:124:24 */
+type X__ssize_t = int64              /* _types.h:125:16 */
+type X__va_list = X__builtin_va_list /* _types.h:127:27 */
+
+// Wide character support types
+type X__wchar_t = int32     /* _types.h:137:15 */
+type X__wint_t = int32      /* _types.h:140:15 */
+type X__rune_t = int32      /* _types.h:141:15 */
+type X__wctrans_t = uintptr /* _types.h:142:14 */
+type X__wctype_t = uintptr  /* _types.h:143:14 */
+
+type X__blkcnt_t = X__int64_t    /* _types.h:39:19 */ // blocks allocated for file
+type X__blksize_t = X__int32_t   /* _types.h:40:19 */ // optimal blocksize for I/O
+type X__clock_t = X__int64_t     /* _types.h:41:19 */ // ticks in CLOCKS_PER_SEC
+type X__clockid_t = X__int32_t   /* _types.h:42:19 */ // CLOCK_* identifiers
+type X__cpuid_t = uint64         /* _types.h:43:23 */ // CPU id
+type X__dev_t = X__int32_t       /* _types.h:44:19 */ // device number
+type X__fixpt_t = X__uint32_t    /* _types.h:45:20 */ // fixed point number
+type X__fsblkcnt_t = X__uint64_t /* _types.h:46:20 */ // file system block count
+type X__fsfilcnt_t = X__uint64_t /* _types.h:47:20 */ // file system file count
+type X__gid_t = X__uint32_t      /* _types.h:48:20 */ // group id
+type X__id_t = X__uint32_t       /* _types.h:49:20 */ // may contain pid, uid or gid
+type X__in_addr_t = X__uint32_t  /* _types.h:50:20 */ // base type for internet address
+type X__in_port_t = X__uint16_t  /* _types.h:51:20 */ // IP port type
+type X__ino_t = X__uint64_t      /* _types.h:52:20 */ // inode number
+type X__key_t = int64            /* _types.h:53:15 */ // IPC key (for Sys V IPC)
+type X__mode_t = X__uint32_t     /* _types.h:54:20 */ // permissions
+type X__nlink_t = X__uint32_t    /* _types.h:55:20 */ // link count
+type X__off_t = X__int64_t       /* _types.h:56:19 */ // file offset or size
+type X__pid_t = X__int32_t       /* _types.h:57:19 */ // process id
+type X__rlim_t = X__uint64_t     /* _types.h:58:20 */ // resource limit
+type X__sa_family_t = X__uint8_t /* _types.h:59:19 */ // sockaddr address family type
+type X__segsz_t = X__int32_t     /* _types.h:60:19 */ // segment size
+type X__socklen_t = X__uint32_t  /* _types.h:61:20 */ // length type for network syscalls
+type X__suseconds_t = int64      /* _types.h:62:15 */ // microseconds (signed)
+type X__time_t = X__int64_t      /* _types.h:63:19 */ // epoch time
+type X__timer_t = X__int32_t     /* _types.h:64:19 */ // POSIX timer identifiers
+type X__uid_t = X__uint32_t      /* _types.h:65:20 */ // user id
+type X__useconds_t = X__uint32_t /* _types.h:66:20 */ // microseconds
+
+// mbstate_t is an opaque object to keep conversion state, during multibyte
+// stream conversions. The content must not be referenced by user programs.
+type X__mbstate_t = struct {
+	F__ccgo_pad1 [0]uint64
+	F__mbstate8  [128]int8
+} /* _types.h:75:3 */
+
+type Pid_t = X__pid_t /* termios.h:255:18 */
+
+// Include tty ioctl's that aren't just for backwards compatibility
+// with the old tty driver.  These ioctl definitions were previously
+// in <sys/ioctl.h>.
+//	$OpenBSD: ttycom.h,v 1.17 2018/06/16 13:55:03 deraadt Exp $
+//	$NetBSD: ttycom.h,v 1.4 1996/05/19 17:17:53 jonathan Exp $
+
+// -
+// Copyright (c) 1982, 1986, 1990, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttycom.h	8.1 (Berkeley) 3/28/94
+
+//	$OpenBSD: ioccom.h,v 1.5 2013/03/22 21:22:05 deraadt Exp $
+//	$NetBSD: ioccom.h,v 1.4 1994/10/30 21:49:56 cgd Exp $
+
+// -
+// Copyright (c) 1982, 1986, 1990, 1993, 1994
+//	The Regents of the University of California.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ioccom.h	8.2 (Berkeley) 3/28/94
+
+// Ioctl's have the command encoded in the lower word, and the size of
+// any in or out parameters in the upper word.  The high 3 bits of the
+// upper word are used to encode the in/out status of the parameter.
+
+// no parameters
+// copy parameters out
+// copy parameters in
+// copy parameters in and out
+// mask for IN/OUT/VOID
+
+// this should be _IORW, but stdio got there first
+
+// Tty ioctl's.
+
+// Window/terminal size structure.  This information is stored by the kernel
+// in order to provide a consistent interface, but is not used by the kernel.
+type Winsize = struct {
+	Fws_row    uint16
+	Fws_col    uint16
+	Fws_xpixel uint16
+	Fws_ypixel uint16
+} /* ttycom.h:51:1 */
+
+type Tstamps = struct {
+	Fts_set int32
+	Fts_clr int32
+} /* ttycom.h:58:1 */
+
+// 8-10 compat
+// 15 unused
+// 17-18 compat
+// 127-124 compat
+// 117-116 compat
+
+// Backwards compatibility
+
+// END OF PROTECTED INCLUDE.
+
+//	$OpenBSD: ttydefaults.h,v 1.7 2019/03/12 11:01:25 nicm Exp $
+//	$NetBSD: ttydefaults.h,v 1.8 1996/04/09 20:55:45 cgd Exp $
+
+// -
+// Copyright (c) 1982, 1986, 1993
+//	The Regents of the University of California.  All rights reserved.
+// (c) UNIX System Laboratories, Inc.
+// All or some portions of this file are derived from material licensed
+// to the University of California by American Telephone and Telegraph
+// Co. or Unix System Laboratories, Inc. and are reproduced herein with
+// the permission of UNIX System Laboratories, Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the University nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+//	@(#)ttydefaults.h	8.4 (Berkeley) 1/21/94
+
+// System wide defaults for terminal state.
+
+// Defaults on "first" open.
+
+// Control Character Defaults
+// compat
+
+// PROTECTED INCLUSION ENDS HERE
+
+// #define TTYDEFCHARS to include an array of default control characters.
+var _ int8 /* gen.c:2:13: */