mktime regression test from Andy Shevchenko

regress/lib/libc/time/Makefile

@@ -1,5 +1,5 @@
-#	$NetBSD: Makefile,v 1.1 1998/01/21 05:46:30 mycroft Exp $
+#	$NetBSD: Makefile,v 1.2 2008/08/27 08:50:04 christos Exp $
 
-SUBDIR+=strptime
+SUBDIR+=mktime strptime
 
 .include <bsd.subdir.mk>

regress/lib/libc/time/mktime/Makefile

@@ -0,0 +1,10 @@
+#	$NetBSD: Makefile,v 1.1 2008/08/27 08:50:04 christos Exp $
+
+NOMAN=		# defined
+
+PROG=		mktime
+
+regress:
+	./${PROG}
+
+.include <bsd.prog.mk>

regress/lib/libc/time/mktime/mktime.c

@@ -0,0 +1,22 @@
+#include <err.h>
+#include <errno.h>
+#include <string.h>
+#include <time.h>
+
+int
+main(void)
+{
+	time_t rc;
+	struct tm tms;
+
+	(void)memset(&tms, 0, sizeof(tms));
+	tms.tm_year = ~0;
+
+	errno = 0;
+	rc = mktime(&tms);
+
+	if (errno != 0)
+		errx(1, "mktime(): errno was %d", errno);
+
+	return 0;
+}