https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65255
--- Comment #4 from Yichao Yu <yyc1992 at gmail dot com> --- Created attachment 34905 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34905&action=edit config.log of a more recent snapshot
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65255
--- Comment #4 from Yichao Yu <yyc1992 at gmail dot com> --- Created attachment 34905 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34905&action=edit config.log of a more recent snapshot