http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55742
--- Comment #35 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-01-18 17:51:42 UTC --- Created attachment 29211 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29211 gcc48-pr55742.patch Updated patch with ChangeLog entry and code to prevent issuing errors for the same bug multiple times. As for documentation, the multiversioning was checked in without proper documentation, so there is nothing to adjust in documentation, the feature simply needs documentation written. 1), 2) and 3) are unsolved by the patch, similarly extensive test coverage (the current one is insufficient). Perhaps that can be solved incrementally? I'm going to bootstrap/regtest this version now.