https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81797
--- Comment #73 from Jens-S. Vöckler <jens4303 at me dot com> --- I agree with Damien Merenne: I recently tried to build gcc 8 on High Sierra on an APFS in various ways, and it failed every time. I used my old work-around of creating an HFS+ partition-in-a-file to build gcc 8 within, and it did build fine. This tells me that the symptoms described in this bug are still present in recent sources.
