diff -ur fribidi.orig/configure.ac fribidi/configure.ac
--- fribidi.orig/configure.ac	2012-05-29 16:13:47.340167837 -0400
+++ fribidi/configure.ac	2012-05-29 16:14:23.180167432 -0400
@@ -110,7 +110,7 @@
 # Checks for compiler characteristics.
 changequote(,)dnl
 if test "x$GCC" = "xyes"; then
-  CFLAGS="$CFLAGS -Wall -ansi "
+  CFLAGS="$CFLAGS -Wall"
 fi
 changequote([,])dnl
 
