http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46455
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> 2010-11-12 20:14:38 UTC --- I don't think anything in shared_ptr changed between 4.4 and 4.5, though I don't know what thread layer is used by MinGW. I'll look into it
