gcc: partialy disable internal libffi

base/gcc/gcc.conf

@@ -13,6 +13,9 @@
 # GNU General Public License can be found in the file COPYING.
 # --- SDE-COPYRIGHT-NOTE-END ---
 
+#exclude internal libffi, we have it packaged for g-wrap
+hook_add preconf 1 'sed -i -e "s/@toolexeclibdir@/@toolexeclibdir@\/gcc/" libffi/Makefile.in'
+
 # provide same settings we use for -m{arch,cpu,tune} via configure options
 # so they are default compiler settings on the final target machine
 if [ "${ver:0:3}" = "4.4" ]; then