http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55355
--- Comment #11 from Paolo Carlini <paolo.carlini at oracle dot com> 2012-11-22 15:04:23 UTC --- Still, you reported the issue as fixed in 4_7-branch, thus unless you think it's a regression, it seems highly unlikely that it will be fixed in that branch too, unless you volunteer to actively work on the issue. But by now I think you know that.