From 115dcb2a1ade67d78b430081e225f46aad742e7b Mon Sep 17 00:00:00 2001
From: Bruno Haible <bruno@clisp.org>
Date: Fri, 31 Dec 2010 14:01:33 +0100
Subject: time_r: Add missing declarations on HP-UX 11.

* lib/time.in.h (localtime_r, gmtime_r): Test HAVE_DECL_LOCALTIME_R
instead of HAVE_LOCALTIME_R.
* m4/time_r.m4 (gl_TIME_R): Test whether localtime_r is declared. Set
HAVE_LOCALTIME_R always.
* m4/time_h.m4 (gl_HEADER_TIME_H_DEFAULTS): Initialize
HAVE_DECL_LOCALTIME_R, not HAVE_LOCALTIME_R.
* modules/time (Makefile.am): Substitute HAVE_DECL_LOCALTIME_R, not
HAVE_LOCALTIME_R.
* doc/posix-functions/gmtime_r.texi: Document the HP-UX 11 problem.
* doc/posix-functions/localtime_r.texi: Likewise.
---
 m4/time_r.m4 | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'm4/time_r.m4')

diff --git a/m4/time_r.m4 b/m4/time_r.m4
index 9e82d39ffb..f9bed0c5c8 100644
--- a/m4/time_r.m4
+++ b/m4/time_r.m4
@@ -15,8 +15,16 @@ AC_DEFUN([gl_TIME_R],
   AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS])
   AC_REQUIRE([AC_C_RESTRICT])
 
+  dnl Some systems don't declare localtime_r() and gmtime_r() if _REENTRANT is
+  dnl not defined.
+  AC_CHECK_DECLS_ONCE([localtime_r])
+  if test $ac_cv_have_decl_localtime_r = no; then
+    HAVE_DECL_LOCALTIME_R=0
+  fi
+
   AC_CHECK_FUNCS_ONCE([localtime_r])
   if test $ac_cv_func_localtime_r = yes; then
+    HAVE_LOCALTIME_R=1
     AC_CACHE_CHECK([whether localtime_r is compatible with its POSIX signature],
       [gl_cv_time_r_posix],
       [AC_COMPILE_IFELSE(
-- 
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