bug#57029: macos cannot build emacs after updated gcc and libgccjit to 12.1

[Lars Ingebrigtsen]

Stefan Kangas <stefankangas@gmail.com> writes:

>> Is it really a problem to use only libgccjit 12.0 and older for the
>> release branch?
>
> I'm afraid that it's a serious problem.

Yes, I think we have to put a fix for this on the release branch, but as
Eli says, it must be safe.  (And this has been a surprisingly difficult
thing to get right -- it seems so simple, but the differences between
brew/Macports/versions of the basic utilities have led to numerous
breakages here.)