commit 180e0e4b29e4950cd411144c7b9dab1f850853d9
Author: Siddhesh Poyarekar <siddhesh@redhat.com>
Date:   Thu Jul 10 14:21:27 2014 +0530

    Fix -Wundef warning for HAVE_LOCALTIME_R
    
    Define it to 0.  There is a gnulib copy for this, but it is out of
    sync with our copy.

diff --git a/time/strptime_l.c b/time/strptime_l.c
index 7bc5ed3eb0a349ce..14d50a2e879a2c5c 100644
--- a/time/strptime_l.c
+++ b/time/strptime_l.c
@@ -28,6 +28,7 @@
 #include <stdbool.h>
 
 #ifdef _LIBC
+# define HAVE_LOCALTIME_R 0
 # include "../locale/localeinfo.h"
 #endif