http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41495
--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-03-20 15:23:02 UTC --- N.B. messages_base::catalog is required to be a typedef for int, although there is an open issue which would allow intptr_t to be used instead: http://open-std.org/JTC1/SC22/WG21/docs/lwg-active.html#2028
