var utimes [2]syscall.Timespec
	set := func(i int, t time.Time) {
		if t.IsZero() {
			utimes[i] = syscall.Timespec{Sec: _UTIME_OMIT, Nsec: _UTIME_OMIT}
		} else {
			utimes[i] = syscall.NsecToTimespec(t.UnixNano())
		}
	}
	set(0, atime)
	set(1, mtime)
	if e := syscall.UtimesNano(fixLongPath(name), utimes[0:]); e != nil {
		return &PathError{Op: "chtimes", Path: name, Err: e}
	}

	}
	if n != unsafe.Sizeof(tv) {
		return nil, EIO
	}
	return &tv, nil
}

//sys	utimes(path string, timeval *[2]Timeval) (err error)

func Utimes(path string, tv []Timeval) error {
	if tv == nil {
		return utimes(path, nil)
	}
	if len(tv) != 2 {
		return EINVAL
	}
	return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
}

func UtimesNano(path string, ts []Timespec) error {

}

func Time(t *Time_t) (Time_t, error) {
	var tv Timeval
	err := Gettimeofday(&tv)
	if err != nil {
		return 0, err
	}
	if t != nil {
		*t = Time_t(tv.Sec)
	}
	return Time_t(tv.Sec), nil
}

func Utime(path string, buf *Utimbuf) error {
	tv := []Timeval{
		{Sec: buf.Actime},
		{Sec: buf.Modtime},
	}
	return Utimes(path, tv)
}

}

func Time(t *Time_t) (Time_t, error) {
	var tv Timeval
	err := Gettimeofday(&tv)
	if err != nil {
		return 0, err
	}
	if t != nil {
		*t = Time_t(tv.Sec)
	}
	return Time_t(tv.Sec), nil
}

func Utime(path string, buf *Utimbuf) error {
	tv := []Timeval{
		{Sec: buf.Actime},
		{Sec: buf.Modtime},
	}
	return Utimes(path, tv)
}

		{Sec: buf.Modtime},
	}
	return Utimes(path, tv)
}

//sys	utimes(path string, times *[2]Timeval) (err error)

//sys	pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
//sys	pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
//sys	Truncate(path string, length int64) (err error) = SYS_TRUNCATE64
//sys	Ftruncate(fd int, length int64) (err error) = SYS_FTRUNCATE64

		NsecToTimeval(TimespecToNsec(ts[0])),
		NsecToTimeval(TimespecToNsec(ts[1])),
	}
	return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
}

//sys	futimes(fd int, timeval *[2]Timeval) (err error)

func Futimes(fd int, tv []Timeval) (err error) {
	if len(tv) != 2 {
		return EINVAL
	}
	return futimes(fd, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
}

//sys	fcntl(fd int, cmd int, arg int) (val int, err error)

}

func Time(t *Time_t) (Time_t, error) {
	var tv Timeval
	err := Gettimeofday(&tv)
	if err != nil {
		return 0, err
	}
	if t != nil {
		*t = Time_t(tv.Sec)
	}
	return Time_t(tv.Sec), nil
}

func Utime(path string, buf *Utimbuf) error {
	tv := []Timeval{
		{Sec: buf.Actime},
		{Sec: buf.Modtime},
	}
	return Utimes(path, tv)
}

}

func Time(t *Time_t) (Time_t, error) {
	var tv Timeval
	err := Gettimeofday(&tv)
	if err != nil {
		return 0, err
	}
	if t != nil {
		*t = Time_t(tv.Sec)
	}
	return Time_t(tv.Sec), nil
}

func Utime(path string, buf *Utimbuf) error {
	tv := []Timeval{
		{Sec: buf.Actime},
		{Sec: buf.Modtime},
	}
	return Utimes(path, tv)
}

}

func Time(t *Time_t) (Time_t, error) {
	var tv Timeval
	err := Gettimeofday(&tv)
	if err != nil {
		return 0, err
	}
	if t != nil {
		*t = Time_t(tv.Sec)
	}
	return Time_t(tv.Sec), nil
}

func Utime(path string, buf *Utimbuf) error {
	tv := []Timeval{
		{Sec: buf.Actime},
		{Sec: buf.Modtime},
	}
	return Utimes(path, tv)
}

}

func Time(t *Time_t) (Time_t, error) {
	var tv Timeval
	err := Gettimeofday(&tv)
	if err != nil {
		return 0, err
	}
	if t != nil {
		*t = Time_t(tv.Sec)
	}
	return Time_t(tv.Sec), nil
}

func Utime(path string, buf *Utimbuf) error {
	tv := []Timeval{
		{Sec: buf.Actime},
		{Sec: buf.Modtime},
	}
	return Utimes(path, tv)
}