http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53646
--- Comment #15 from Michael Matz <matz at gcc dot gnu.org> 2012-06-13 12:07:38 UTC --- I think so, yes. I initially really reported this as general c++ problem, with the testcase of course being about a concrete instance of the problem but not meaning to specifically constrain it to libstdc++ only (that was reclassified by Jakub).