https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92240
--- Comment #7 from Dmitry G. Dyachenko <dimhen at gmail dot com> --- (In reply to Martin Liška from comment #6) > @Dmitry: Can you please attach a pre-processed source file (-E option)? @Martin: FAIL start for me during gcc bootstrap somewhere between r277460 and r277485. bootstrap was restored for me at r277486. Fedora 31, x86_64 For reproduce you can try download gcc sources, run contrib/download_prerequesites, run configure as c#1 and make. I"ll download preprocessed file tomorrow.