http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49204
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-12-30 13:10:28 UTC --- (In reply to comment #0) > doesn't handle non-timed waiting functions, but I'm not convinced they > should block. Reported as http://cplusplus.github.com/LWG/lwg-active.html#2100