pkg syscall (darwin-386), const B115200 ideal-int
pkg syscall (darwin-386), const B1200 = 1200
pkg syscall (darwin-386), const B1200 ideal-int
pkg syscall (darwin-386), const B134 = 134
pkg syscall (darwin-386), const B134 ideal-int
pkg syscall (darwin-386), const B14400 = 14400
pkg syscall (darwin-386), const B14400 ideal-int
pkg syscall (darwin-386), const B150 = 150
pkg syscall (darwin-386), const B150 ideal-int

pkg syscall (openbsd-386), const S_IRWXO = 7
pkg syscall (openbsd-386), const S_IRWXO ideal-int
pkg syscall (openbsd-386-cgo), const S_IRWXG = 56
pkg syscall (openbsd-386-cgo), const S_IRWXG ideal-int
pkg syscall (openbsd-386-cgo), const S_IRWXO = 7
pkg syscall (openbsd-386-cgo), const S_IRWXO ideal-int
pkg syscall (openbsd-amd64), const S_IRWXG = 56
pkg syscall (openbsd-amd64), const S_IRWXG ideal-int

pkg syscall (freebsd-amd64), const SYS_FSTATAT = 552 #53280
pkg syscall (freebsd-amd64), const SYS_FSTATFS = 556 #53280
pkg syscall (freebsd-amd64), const SYS_GETDIRENTRIES = 554 #53280
pkg syscall (freebsd-amd64), const SYS_GETFSSTAT = 557 #53280
pkg syscall (freebsd-amd64), const SYS_MKNODAT = 559 #53280
pkg syscall (freebsd-amd64), const SYS_STATFS = 555 #53280
pkg syscall (freebsd-arm-cgo), const SYS_FSTAT = 551 #53280

pkg syscall (netbsd-arm64-cgo), const AF_DATAKIT ideal-int
pkg syscall (netbsd-arm64-cgo), const AF_DECnet = 12
pkg syscall (netbsd-arm64-cgo), const AF_DECnet ideal-int
pkg syscall (netbsd-arm64-cgo), const AF_DLI = 13
pkg syscall (netbsd-arm64-cgo), const AF_DLI ideal-int
pkg syscall (netbsd-arm64-cgo), const AF_E164 = 26
pkg syscall (netbsd-arm64-cgo), const AF_E164 ideal-int
pkg syscall (netbsd-arm64-cgo), const AF_ECMA = 8

		fallthrough
	case syscall.O_WRONLY | syscall.O_CREAT:
		access = syscall.GENERIC_READ | syscall.GENERIC_WRITE
	case syscall.O_WRONLY | syscall.O_CREAT | syscall.O_APPEND:
		access = syscall.FILE_APPEND_DATA
	default:
		return nil, fmt.Errorf("Unsupported flag (%d)", flag)
	}

	var createflag uint32
	switch {
	case flag&syscall.O_CREAT == syscall.O_CREAT:
		createflag = syscall.OPEN_ALWAYS
	default:

pkg syscall (windows-386), func SyscallN(uintptr, ...uintptr) (uintptr, uintptr, Errno)
pkg syscall (windows-amd64), func Syscall //deprecated
pkg syscall (windows-amd64), func Syscall12 //deprecated
pkg syscall (windows-amd64), func Syscall15 //deprecated
pkg syscall (windows-amd64), func Syscall18 //deprecated
pkg syscall (windows-amd64), func Syscall6 //deprecated
pkg syscall (windows-amd64), func Syscall9 //deprecated

pkg syscall (freebsd-386), const AF_INET6_SDP = 42
pkg syscall (freebsd-386), const AF_INET6_SDP ideal-int
pkg syscall (freebsd-386), const AF_INET_SDP = 40
pkg syscall (freebsd-386), const AF_INET_SDP ideal-int
pkg syscall (freebsd-386), const AF_MAX = 42
pkg syscall (freebsd-386), const DLT_MATCHING_MAX = 246
pkg syscall (freebsd-386), const DLT_MPEG_2_TS = 243
pkg syscall (freebsd-386), const DLT_MPEG_2_TS ideal-int

pkg syscall (darwin-386-cgo), const ICMP6_FILTER ideal-int
pkg syscall (darwin-386-cgo), const ImplementsGetwd = true
pkg syscall (darwin-386-cgo), const PRIO_PGRP = 1
pkg syscall (darwin-386-cgo), const PRIO_PGRP ideal-int
pkg syscall (darwin-386-cgo), const PRIO_PROCESS = 0
pkg syscall (darwin-386-cgo), const PRIO_PROCESS ideal-int
pkg syscall (darwin-386-cgo), const PRIO_USER = 2
pkg syscall (darwin-386-cgo), const PRIO_USER ideal-int

pkg syscall (freebsd-386), func Pipe2([]int, int) error
pkg syscall (freebsd-386), type Credential struct, NoSetGroups bool
pkg syscall (freebsd-amd64-cgo), func Pipe2([]int, int) error
pkg syscall (freebsd-amd64-cgo), type Credential struct, NoSetGroups bool
pkg syscall (freebsd-amd64), func Pipe2([]int, int) error
pkg syscall (freebsd-amd64), type Credential struct, NoSetGroups bool
pkg syscall (freebsd-arm-cgo), func Pipe2([]int, int) error

		fallthrough
	case syscall.O_RDWR | syscall.O_CREAT:
		lockType |= syscall.LOCK_EX
	default:
		return nil, &os.PathError{
			Op:   "open",
			Path: path,
			Err:  syscall.EINVAL,
		}
	}

	f, err := os.OpenFile(path, flag|syscall.O_SYNC, perm)
	if err != nil {
		return nil, err
	}

	if err = syscall.Flock(int(f.Fd()), lockType); err != nil {
		f.Close()
		if err == syscall.EWOULDBLOCK {
			err = ErrAlreadyLocked