grsecurity-2.9.1-3.8.3-201303142235.patch and gcc 4.6 fails with
kernel/user_namespace.c: In function 'userns_install':
kernel/user_namespace.c:808:25: error: invalid operands to binary != (have 'atomic_t' and 'int')
make[1]: *** [kernel/user_namespace.o] Error 1