https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92296
--- Comment #6 from fdlbxtqi <euloanty at live dot com> ---
(In reply to fdlbxtqi from comment #4)
> (In reply to Andrew Pinski from comment #2)
> > Most likely the reduced testcase is just:
> > #pragma push_macro("__has_builtin")
> >
> > --- CUT ---
> > > I did finish compilation with the same script 3 days ago. Now It fails
> >
> > That is because the support for __has_builtin was just added within the last
> > 3 days :).
>
> Then how can I build a new version of GCC on MinGW? :(
>
>
> Every day I have to rebuild the entire compiler since either some features
> fail to work or the compiler fails to compile. Sad :(
>
>
> I have to use the new compiler for compiling my C++20 concepts based IO
> library.
>
>
> https://bitbucket.org/ejsvifq_mabmip/fast_io/src/default/
Compile gcc on linux for twice + MinGW for twice per day. :(