Add the ability to extend CFLAGS as needed for several new distros

Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Peter Stuge <peter@stuge.se>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Jordan Crouse <jordan.crouse@amd.com>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3046 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

targets/buildtarget

@@ -53,4 +53,25 @@ fi
 export PYTHONPATH=$config_dir
 $PYTHON $config_py $config_lb $lbpath
 
+# now start checking for distro-specific breakage. 
+## This check is for the no stack protector mess.
+EXTRA_CFLAGS=
+
+if [ -z "$CC" ]; then
+       CC=gcc
+fi
+
+$CC -fno-stack-protector -S -xc /dev/null -o .$$.tmp
+
+if [ $? -eq 0 ]; then
+       EXTRA_CFLAGS=-fno-stack-protector
+fi
+
+rm -rf .$$.tmp
+
+for i in $build_dir/Makefile.settings $build_dir/*/Makefile.settings
+do
+	echo CFLAGS+=$EXTRA_CFLAGS >>$i
+done
+
 exit $?