10. module private {
our sub waitpid(Int $pid, CArray[int]
$status, Int $options)
returns Int is native { ... }
}
sub waitpid(Int $pid, Int $options) is export {
my $status = CArray[int].new;
$status[0] = 0;
my $ret_pid = private::waitpid($pid, $status,
$options);
return ($ret_pid, $status[0]);
}