http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49051
--- Comment #6 from Jason Merrill <jason at gcc dot gnu.org> 2011-08-30 21:56:42 UTC --- This will eventually be issue 1322, http://www.open-std.org/JTC1/SC22/WG21/docs/cwg_active.html#1322 but the issues list hasn't been updated yet. In Bloomington we assigned it priority 1 but didn't get to discussing it.