Y2038: add function __gmtime64_r

Tested with 'make check' on x86_64-linux-gnu and i686-linux.gnu.

	* include/time.h
	(__gmtime64_r): Add.
	* time/gmtime.c
	(__gmtime64_r): Add.
	[__TIMESIZE != 64] (__gmtime): Turn into a wrapper.

1 files changed, 17 insertions, 1 deletions

diff --git a/time/gmtime.c b/time/gmtime.c
index ee901c3..dff50f0 100644
--- a/time/gmtime.c
+++ b/time/gmtime.c
@@ -21,10 +21,26 @@
 /* Return the `struct tm' representation of *T in UTC,
    using *TP to store the result.  */
 struct tm *
-__gmtime_r (const time_t *t, struct tm *tp)
+__gmtime64_r (const __time64_t *t, struct tm *tp)
 {
   return __tz_convert (*t, 0, tp);
 }
+
+/* Provide a 32-bit variant if needed.  */
+
+#if __TIMESIZE != 64
+
+libc_hidden_def (__gmtime64_r)
+
+struct tm *
+__gmtime_r (const time_t *t, struct tm *tp)
+{
+  __time64_t t64 = *t;
+  return __gmtime64_r (&t64, tp);
+}
+
+#endif
+
 libc_hidden_def (__gmtime_r)
 weak_alias (__gmtime_r, gmtime_r)