matchprint(match, nmatch + 1, nsub, NiL, test);
		}
		return 0;
	}
	return 1;
}

static void
sigunblock(int s)
{
#ifdef SIG_SETMASK
	int		op;
	sigset_t	mask;

	sigemptyset(&mask);
	if (s)
	{
		sigaddset(&mask, s);
		op = SIG_UNBLOCK;
	}
	else op = SIG_SETMASK;
	sigprocmask(op, &mask, NiL);
#else
#ifdef sigmask