1 files changed, 28 insertions, 4 deletions
diff --git a/lib/timegm.c b/lib/timegm.c
index 2ca57444d43..c440480cb2d 100644
--- a/lib/timegm.c
+++ b/lib/timegm.c
@@ -18,17 +18,41 @@
    <http://www.gnu.org/licenses/>.  */
 
 #ifndef _LIBC
-# include <config.h>
+# include <libc-config.h>
 #endif
 
 #include <time.h>
+#include <errno.h>
 
 #include "mktime-internal.h"
 
-time_t
-timegm (struct tm *tmp)
+__time64_t
+__timegm64 (struct tm *tmp)
 {
   static mktime_offset_t gmtime_offset;
   tmp->tm_isdst = 0;
-  return __mktime_internal (tmp, __gmtime_r, &gmtime_offset);
+  return __mktime_internal (tmp, __gmtime64_r, &gmtime_offset);
 }
+
+#if defined _LIBC && __TIMESIZE != 64
+
+libc_hidden_def (__timegm64)
+
+time_t
+timegm (struct tm *tmp)
+{
+  struct tm tm = *tmp;
+  __time64_t t = __timegm64 (&tm);
+  if (in_time_t_range (t))
+    {
+      *tmp = tm;
+      return t;
+    }
+  else
+    {
+      __set_errno (EOVERFLOW);
+      return -1;
+    }
+}
+
+#endif