Y2038: add function __ctime64

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

	* include/time.h
	(__ctime64): Add.
	* time/gmtime.c
	(__ctime64): Add.
	[__TIMESIZE != 64] (ctime): Turn into a wrapper.

1 files changed, 17 insertions, 2 deletions

diff --git a/time/ctime.c b/time/ctime.c
index 1222614f29..7925662a0a 100644
--- a/time/ctime.c
+++ b/time/ctime.c
@@ -20,9 +20,24 @@
 /* Return a string as returned by asctime which
    is the representation of *T in that form.  */
 char *
-ctime (const time_t *t)
+__ctime64 (const __time64_t *t)
 {
   /* The C Standard says ctime (t) is equivalent to asctime (localtime (t)).
      In particular, ctime and asctime must yield the same pointer.  */
-  return asctime (localtime (t));
+  return asctime (__localtime64 (t));
+}
+
+/* Provide a 32-bit variant if needed.  */
+
+#if __TIMESIZE != 64
+
+libc_hidden_def (__ctime64)
+
+char *
+ctime (const time_t *t)
+{
+  __time64_t t64 = *t;
+  return __ctime64 (&t64);
 }
+
+#endif