From patchwork Fri Jan 13 10:51:29 2012
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Subject: [01/12] configure: Modify detection of supported warning options
Date: Fri, 13 Jan 2012 00:51:29 -0000
From: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
X-Patchwork-Id: 135784
Message-Id: <1326451900-18325-2-git-send-email-stefanha@linux.vnet.ibm.com>
To: Anthony Liguori <aliguori@us.ibm.com>
Cc: Stefan Weil <sw@weilnetz.de>, qemu-devel@nongnu.org,
 Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>

From: Stefan Weil <sw@weilnetz.de>

Reversing the order of the warning options and -Werror is important
when clang is used instead of gcc. It changes nothing for gcc.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>

---
configure |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/configure b/configure
index eb9a01d..467e87b 100755
--- a/configure
+++ b/configure
@@ -1105,7 +1105,7 @@ cat > $TMPC << EOF
 int main(void) { return 0; }
 EOF
 for flag in $gcc_flags; do
-    if compile_prog "$flag -Werror" "" ; then
+    if compile_prog "-Werror $flag" "" ; then
 	QEMU_CFLAGS="$QEMU_CFLAGS $flag"
     fi
 done