funcref := get_Renameat2Addr()
	if funcptrtest(GetZosLibVec()+SYS___RENAMEAT2_A<<4, "") == 0 {
		*funcref = impl_Renameat2
	} else {
		*funcref = error_Renameat2
	}
	return (*funcref)(olddirfd, oldpath, newdirfd, newpath, flags)
}

func error_Renameat2(olddirfd int, oldpath string, newdirfd int, newpath string, flags uint) (err error) {
	err = ENOSYS
	return
}