https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64968
--- Comment #9 from Frédéric Buclin <LpSolit at netscape dot net> --- Created attachment 35354 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35354&action=edit GCC extension for 5.0, v2 And the corresponding new extension.