http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55105
--- Comment #1 from Michael Haubenwallner <michael.haubenwallner at salomon dot at> 2012-10-30 07:58:20 UTC --- Feels like a dup of bug#52623, or vice-versa. Haven't tried --disable-build-poststage1-with-cxx recently, not sure if this still should work with current trunk.