--- /dev/null
+#include <locale.h>
+#include <time.h>
+#include <stdio.h>
+
+static int
+do_test (void)
+{
+ if (setlocale (LC_ALL, "vi_VN.TCVN5712-1") == NULL)
+ {
+ puts ("cannot set locale");
+ return 1;
+ }
+ struct tm tm;
+ /* This is November in Vietnamese encoded using TCVN5712-1. */
+ static const char s[] = "\
+\x54\x68\xb8\x6e\x67\x20\x6d\xad\xea\x69\x20\x6d\xe9\x74";
+ char *r = strptime (s, "%b", &tm);
+ printf ("r = %p, r-s = %ju, tm.tm_mon = %d\n", r, r - s, tm.tm_mon);
+ return r == NULL || r - s != 14 || tm.tm_mon != 10;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"