[Bug target/54160] [4.6/4.7/4.8 Regression] gcc should not define __OBJC2__ when lang is not set to ObjC (gcc 4.6 and later)

[aldyh at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54160

--- Comment #4 from Aldy Hernandez <aldyh at gcc dot gnu.org> 2012-12-04 22:28:54 UTC ---
Proposed patch.
http://gcc.gnu.org/ml/gcc-patches/2012-12/msg00261.html