--- configure.orig	2014-02-11 10:04:07.000000000 +0100
+++ configure	2014-02-11 21:06:31.000000000 +0100
@@ -11863,7 +11863,11 @@
         case $host in
         *)
                 DEBUG="-g -Wall -Wno-parentheses -DDEBUG -D__NO_MATH_INLINES"
-                CFLAGS="-Wall -Wno-parentheses -O3 -fforce-addr -fomit-frame-pointer -finline-functions -funroll-loops"
+                if $CC -v 2>&1 | grep clang > /dev/null; then
+                        CFLAGS="-Wall -Wno-parentheses -O3 -fomit-frame-pointer -finline-functions -funroll-loops"
+                else
+                        CFLAGS="-Wall -Wno-parentheses -O3 -fforce-addr -fomit-frame-pointer -finline-functions -funroll-loops"
+                fi
                 PROFILE="-Wall -Wno-parentheses -pg -g -O3 -fno-inline-functions -DDEBUG";;
         esac
 fi