http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57524
--- Comment #8 from James Michael DuPont <JamesMikeDuPont at googlemail dot com> --- Tested like this: /usr/lib/gcc/x86_64-linux-gnu/4.7/cc1plus -std=gnu++11 -fdump-translation-unit testvariant_min.ii