===================================================================
RCS file: /cvs/mandoc/test-strptime.c,v
retrieving revision 1.1
retrieving revision 1.3
diff -u -p -r1.1 -r1.3
--- mandoc/test-strptime.c	2011/07/24 18:15:14	1.1
+++ mandoc/test-strptime.c	2015/10/06 18:32:20	1.3
@@ -1,13 +1,14 @@
 #if defined(__linux__) || defined(__MINT__)
-# define _GNU_SOURCE /* strptime(), getsubopt() */
+# define _GNU_SOURCE /* strptime() */
 #endif
 
 #include <time.h>
 
 int
-main(int argc, char **argv)
+main(void)
 {
 	struct tm tm;
-	strptime(*argv, "%D", &tm);
-	return 0;
+	const char input[] = "2014-01-04";
+	return ! (strptime(input, "%Y-%m-%d", &tm) == input + 10 &&
+	    tm.tm_year == 114 && tm.tm_mon == 0 && tm.tm_mday == 4);
 }