SYS_SETFIB                   = 175 // { int setfib(int fibnum); }
	SYS_NTP_ADJTIME              = 176 // { int ntp_adjtime(struct timex *tp); }
	SYS_SETGID                   = 181 // { int setgid(gid_t gid); }
	SYS_SETEGID                  = 182 // { int setegid(gid_t egid); }
	SYS_SETEUID                  = 183 // { int seteuid(uid_t euid); }

	SYS_SETFIB                   = 175 // { int setfib(int fibnum); }
	SYS_NTP_ADJTIME              = 176 // { int ntp_adjtime(struct timex *tp); }
	SYS_SETGID                   = 181 // { int setgid(gid_t gid); }
	SYS_SETEGID                  = 182 // { int setegid(gid_t egid); }
	SYS_SETEUID                  = 183 // { int seteuid(uid_t euid); }

	// BSD mkdir(2) inherits the parent directory group, and other platforms
	// can inherit the parent directory group via setgid. The test setup (chmod
	// setgid) will fail if the process does not have the group permission to
	// the new temporary directory.
	err = os.Chown(setgiddir, os.Getuid(), os.Getgid())
	if err != nil {
		if testenv.SyscallIsNotSupported(err) {
			t.Skip("skipping: chown is not supported on " + runtime.GOOS)

	SYS_SETFIB                   = 175 // { int setfib(int fibnum); }
	SYS_NTP_ADJTIME              = 176 // { int ntp_adjtime(struct timex *tp); }
	SYS_SETGID                   = 181 // { int setgid(gid_t gid); }
	SYS_SETEGID                  = 182 // { int setegid(gid_t egid); }
	SYS_SETEUID                  = 183 // { int seteuid(uid_t euid); }

//sys	Setdomainname(p []byte) (err error)
//sys	Sethostname(p []byte) (err error)
//sysnb	Setpgid(pid int, pgid int) (err error)
//sysnb	Setsid() (pid int, err error)
//sysnb	Settimeofday(tv *Timeval) (err error)

//sys	Setuid(uid int) (err error)
//sys	Setgid(uid int) (err error)

//sys	Setpriority(which int, who int, prio int) (err error)

//sys	Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error)
//sysnb	Setegid(egid int) (err error)
//sysnb	Seteuid(euid int) (err error)
//sysnb	Setgid(gid int) (err error)
//sys	Setlogin(name string) (err error)
//sysnb	Setpgid(pid int, pgid int) (err error)
//sys	Setpriority(which int, who int, prio int) (err error)
//sysnb	Setregid(rgid int, egid int) (err error)

//sys	sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) = libsendfile.sendfile
//sysnb	Setegid(egid int) (err error)
//sysnb	Seteuid(euid int) (err error)
//sysnb	Setgid(gid int) (err error)
//sysnb	Setpgid(pid int, pgid int) (err error)
//sys	Setpriority(which int, who int, prio int) (err error)
//sysnb	Setregid(rgid int, egid int) (err error)

	SYS_SETFIB                   = 175 // { int setfib(int fibnum); }
	SYS_NTP_ADJTIME              = 176 // { int ntp_adjtime(struct timex *tp); }
	SYS_SETGID                   = 181 // { int setgid(gid_t gid); }
	SYS_SETEGID                  = 182 // { int setegid(gid_t egid); }
	SYS_SETEUID                  = 183 // { int seteuid(uid_t euid); }

	SYS_SETFIB                   = 175 // { int setfib(int fibnum); }
	SYS_NTP_ADJTIME              = 176 // { int ntp_adjtime(struct timex *tp); }
	SYS_SETGID                   = 181 // { int setgid(gid_t gid); }
	SYS_SETEGID                  = 182 // { int setegid(gid_t egid); }
	SYS_SETEUID                  = 183 // { int seteuid(uid_t euid); }

	ModeNamedPipe  = fs.ModeNamedPipe  // p: named pipe (FIFO)
	ModeSocket     = fs.ModeSocket     // S: Unix domain socket
	ModeSetuid     = fs.ModeSetuid     // u: setuid
	ModeSetgid     = fs.ModeSetgid     // g: setgid
	ModeCharDevice = fs.ModeCharDevice // c: Unix character device, when ModeDevice is set
	ModeSticky     = fs.ModeSticky     // t: sticky