http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29859
--- Comment #3 from Daniel Krügler <daniel.kruegler at googlemail dot com> 2012-01-19 19:01:20 UTC --- A new core issue has been opened for this problem: http://www.open-std.org/jtc1/sc22/wg21/prot/14882fdis/cwg_active.html#1401