From e5fdbfe19de286f70dd8729e63caa07356e6add4 Mon Sep 17 00:00:00 2001
From: zimmerma <zimmerma@211d60ee-9f03-0410-a15a-8952a2c7a4e4>
Date: Mon, 14 May 2012 15:56:24 +0000
Subject: [configure.ac] only add warning flags to CFLAGS when the user did not
 define it (see
 http://lists.gforge.inria.fr/pipermail/mpc-discuss/2012-May/001115.html)

git-svn-id: svn://scm.gforge.inria.fr/svn/mpc/trunk@1157 211d60ee-9f03-0410-a15a-8952a2c7a4e4
---
 configure.ac | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 6e5d127..4e2b35b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -119,7 +119,12 @@ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
 ])
 
 # Check if compiler accepts warning flags and add them to CFLAGS
-MPC_C_CHECK_WARNINGCFLAGS
+# Note: don't do this if the user defined CFLAGS, since adding new flags
+# might override the user's settings, see
+# http://lists.gforge.inria.fr/pipermail/mpc-discuss/2012-May/001115.html
+if test -z "$CFLAGS"; then
+   MPC_C_CHECK_WARNINGCFLAGS
+fi
 
 
 # Checks for header files.
-- 
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