https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108350
--- Comment #23 from niXman <i.nixman at autistici dot org> --- Created attachment 54280 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=54280&action=edit patch looks like I have finished! boostrapped successfully as x86_64-mingw-w64. @Bill Zissimopoulos, @Jonathan Wakely could you please review the patch?