--- toolchain.eclass.orig	2013-02-09 14:01:14.000000000 +0900
+++ toolchain.eclass.orig	2013-03-06 20:00:02.000000000 +0900
@@ -1477,7 +1477,7 @@ 
 	find gcc/include*/ -type l -print0 | xargs -0 rm -f
 	# Remove generated headers, as they can cause things to break
 	# (ncurses, openssl, etc).
-	for x in $(find gcc/include*/ -name '*.h') ; do
+	for x in $(find gcc/include*/ -name '*.h' ! -name 'cdefs.h') ; do
 		grep -q 'It has been auto-edited by fixincludes from' "${x}" \
 			&& rm -f "${x}"
 	done