From 65788e2e93a48015493514b7e8b712700d31a7a2 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Sat, 29 Sep 2012 21:19:32 -0700
Subject: [PATCH] Merge from gnulib.

---
 ChangeLog           | 5 +++++
 m4/extern-inline.m4 | 6 ++++--
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index c7de7d7c14d..411ef633420 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2012-09-30  Paul Eggert  <eggert@cs.ucla.edu>
+
+	Merge from gnulib, incorporating:
+	2012-09-28 extern-inline: provide a -Wundef safe config.h
+
 2012-09-27  Paul Eggert  <eggert@cs.ucla.edu>
 
 	Check more robustly for timer_settime.
diff --git a/m4/extern-inline.m4 b/m4/extern-inline.m4
index 12f24fab95f..600c8d3fa17 100644
--- a/m4/extern-inline.m4
+++ b/m4/extern-inline.m4
@@ -18,7 +18,9 @@ AC_DEFUN([gl_EXTERN_INLINE],
      <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54113>.
    _GL_INLINE_HEADER_END contains useful stuff to put
      in the same include file, after uses of _GL_INLINE.  */
-#if __GNUC__ ? __GNUC_STDC_INLINE__ : 199901L <= __STDC_VERSION__
+#if (__GNUC__ \
+     ? defined __GNUC_STDC_INLINE__ && __GNUC_STDC_INLINE__ \
+     : 199901L <= __STDC_VERSION__)
 # define _GL_INLINE inline
 # define _GL_EXTERN_INLINE extern inline
 #elif 2 < __GNUC__ + (7 <= __GNUC_MINOR__)
@@ -35,7 +37,7 @@ AC_DEFUN([gl_EXTERN_INLINE],
 #endif
 
 #if 4 < __GNUC__ + (6 <= __GNUC_MINOR__)
-# if __GNUC_STDC_INLINE__
+# if defined __GNUC_STDC_INLINE__ && __GNUC_STDC_INLINE__
 #  define _GL_INLINE_HEADER_CONST_PRAGMA
 # else
 #  define _GL_INLINE_HEADER_CONST_PRAGMA \
-- 
2.11.4.GIT