From 3b1845a2acc6b7128f96a2ea89fee04572af10e8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Diego=20=27Flameeyes=27=20Petten=C3=B2?=
 <flameeyes@gmail.com>
Date: Thu, 29 Jun 2006 10:18:22 +0000
Subject: When available, enable -Wformat warnings class. This prevents adding
 more possible format string vulnerabilities.

CVS patchset: 8075
CVS date: 2006/06/29 10:18:22
---
 configure.ac | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/configure.ac b/configure.ac
index a7193933f..52caba968 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2295,6 +2295,15 @@ _AM_DEPENDENCIES([OBJC])
 
 AM_CONDITIONAL([BUILD_DMX_IMAGE], [test x"$have_imagemagick" = "xyes" -o x"$no_gdkpixbuf" != "xyes"])
 
+dnl Important warnings we _don't_ want to skip
+dnl Don't put these under conditional for optimisations, because these
+dnl need always to be enabled.
+AC_TRY_CFLAGS("-Wformat", wformat="-Wformat")
+AC_TRY_CFLAGS("-Wformat=2", wformat="-Wformat=2")
+if test "x$wformat" != "x"; then
+   AC_TRY_CFLAGS("-Wno-format-zero-length", wformat="$wformat -Wno-format-zero-length")
+fi
+CFLAGS="$CFLAGS $wformat"
 
 dnl ---------------------------------------------
 dnl Output configuration files
-- 
cgit v1.2.3