X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/41b7f8bc6c4511ab6fcf7f6b1f9e7fdcd8592821..7f8e742833e058fa41c273ff35351b02b6e8d42b:/m4/time_r.m4

diff --git a/m4/time_r.m4 b/m4/time_r.m4
index c3579fb3b8..21b4a2cc18 100644
--- a/m4/time_r.m4
+++ b/m4/time_r.m4
@@ -1,6 +1,6 @@
 dnl Reentrant time functions: localtime_r, gmtime_r.
 
-dnl Copyright (C) 2003, 2006-2012 Free Software Foundation, Inc.
+dnl Copyright (C) 2003, 2006-2016 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -17,7 +17,7 @@ AC_DEFUN([gl_TIME_R],
 
   dnl Some systems don't declare localtime_r() and gmtime_r() if _REENTRANT is
   dnl not defined.
-  AC_CHECK_DECLS_ONCE([localtime_r])
+  AC_CHECK_DECLS([localtime_r], [], [], [[#include <time.h>]])
   if test $ac_cv_have_decl_localtime_r = no; then
     HAVE_DECL_LOCALTIME_R=0
   fi