http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53657
--- Comment #10 from Daniel Krügler <daniel.kruegler at googlemail dot com> 2012-06-20 15:10:16 UTC --- (In reply to comment #9) Yes, this is to be expected, because gcc currently does not implement http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#1402 I think fixing that issue depends on that DR (Sorry, I forgot to mention that in my private communication to you).