funcref := get_UtimesNanoAtAddr()
	if validUtimensat() {
		*funcref = utimesNanoAtImpl
	} else {
		*funcref = legacyUtimesNanoAt
	}
	return (*funcref)(dirfd, path, ts, flags)
}

func utimesNanoAtImpl(dirfd int, path string, ts []Timespec, flags int) (err error) {
	if ts == nil {
		return utimensat(dirfd, path, nil, flags)
	}