http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46043
--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> 2010-10-28 08:50:07 UTC --- This should be suspended, the C++0x mechanisms are not finalised (pun intended) and might become keywords rather than attributes http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3151.html http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3163.pdf PR 31397 and PR 36848 are related, the C++0x proposals would solve this report and those ones