http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49738
--- Comment #6 from Jack Howarth <howarth at nitro dot med.uc.edu> 2011-11-29 14:34:13 UTC --- This issue also impacts darwin10 users who have installed Xcode 4.2 since that release no longer includes Apple gcc-4.2 and now defaults the system compiler to Apple llvm-gcc-4.2 which exhibits this bug.