From b1c030b0ba59eed6da5271ed592d6b93ed088518 Mon Sep 17 00:00:00 2001
From: Ondrej Zajicek <santiago@crfreenet.org>
Date: Wed, 24 Mar 2010 16:39:18 +0100
Subject: Adds autoconf test for -Wno-pointer-sign compliler option.

---
 configure.in | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

(limited to 'configure.in')

diff --git a/configure.in b/configure.in
index c931c18..3c988b1 100644
--- a/configure.in
+++ b/configure.in
@@ -55,17 +55,28 @@ AC_SEARCH_LIBS(clock_gettime,[c rt posix4])
 
 AC_CANONICAL_HOST
 
-AC_MSG_CHECKING([what CFLAGS should we use])
+# Store this value because ac_test_CFLAGS is overwritten by AC_PROG_CC
 if test "$ac_test_CFLAGS" != set ; then
-	CFLAGS="$CFLAGS -Wall -Wstrict-prototypes -Wno-pointer-sign -Wno-parentheses"
+	bird_cflags_default=yes
 fi
-AC_MSG_RESULT($CFLAGS)
 
 AC_PROG_CC
 if test -z "$GCC" ; then
 	AC_MSG_ERROR([This program requires the GNU C Compiler.])
 fi
 
+AC_MSG_CHECKING([what CFLAGS should we use])
+if test "$bird_cflags_default" == yes ; then
+	BIRD_CHECK_GCC_OPTIONS
+
+	CFLAGS="$CFLAGS -Wall -Wstrict-prototypes -Wno-parentheses"
+	if test "$bird_cv_c_option_no_pointer_sign" == yes ; then
+		CFLAGS="$CFLAGS -Wno-pointer-sign"
+	fi
+fi
+AC_MSG_RESULT($CFLAGS)
+
+
 AC_PROG_CPP
 AC_PROG_INSTALL
 AC_PROG_RANLIB
-- 
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