https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80200
--- Comment #3 from Andreas Schwab <sch...@linux-m68k.org> --- That looks like someone is using -Wsystem-headers.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80200
--- Comment #3 from Andreas Schwab <sch...@linux-m68k.org> --- That looks like someone is using -Wsystem-headers.