From 06780a92b3e4ea14c09a169cc1d22c1371621fc3 Mon Sep 17 00:00:00 2001
From: Eric Blake <eblake@redhat.com>
Date: Tue, 31 Jul 2012 13:14:28 +0100
Subject: build: Allow building with new glibc headers and -O0.

This is a patch taken from libvirt.  See:

http://libvirt.org/git/?p=libvirt.git;a=commitdiff;h=2af63b1c349
---
 configure.ac | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index 7f99fe62..60f6ad85 100644
--- a/configure.ac
+++ b/configure.ac
@@ -158,9 +158,12 @@ if test "$gl_gcc_warnings" = yes; then
   AC_SUBST([WARN_CFLAGS])
 
   AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
-  AC_DEFINE([_FORTIFY_SOURCE], [2],
-    [enable compile-time and run-time bounds-checking, and some warnings])
   AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
+  AH_VERBATIM([FORTIFY_SOURCE],
+    [/* Enable compile-time and run-time bounds-checking, and some warnings. */
+#if __OPTIMIZE__
+# define _FORTIFY_SOURCE 2
+#endif])
 fi
 
 AC_C_PROTOTYPES
-- 
cgit