http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43622
--- Comment #5 from Benjamin Kosnik <bkoz at gcc dot gnu.org> 2011-02-24 19:09:33 UTC --- RE comment 2. Yes, agreed full support is a ways off. However, typeinfo support is ostensibly already there, just not emitted. This is a bug, and not something users can work around. IMHO it should be fixed, and since there are already 4.6.0 typeinfo exports this seems like an opportune time to do it.