diff -Naur firejail-0.9.42/etc/disable-devel.inc firejail-0.9.42.new/etc/disable-devel.inc
--- firejail-0.9.42/etc/disable-devel.inc	2016-09-06 20:48:23.000000000 +0100
+++ firejail-0.9.42.new/etc/disable-devel.inc	2016-09-19 22:21:14.579410841 +0100
@@ -2,7 +2,6 @@
 
 # GCC
 blacklist /usr/include
-blacklist /usr/lib/gcc
 blacklist /usr/bin/gcc*
 blacklist /usr/bin/cpp*
 blacklist /usr/bin/c9*