Subject: bug#57015: 29.0.50; macOS: libgccjit was not found: Homebrew libgccjit 12.1.0

From: Eli Zaretskii <[email-masked]>
Date: Sun, 07 Aug 2022 13:24:25 +0300

> From: Stefan Kangas <[email-masked]>
> Date: Sun, 7 Aug 2022 04:57:57 -0500
> Cc: [email-masked]
> 
> Eli Zaretskii <[email-masked]> 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.
> 
> Homebrew has an eager upgrade policy akin to a rolling release
> distribution.  AFAIU, every macOS user running Homebrew will be unable
> to build Emacs after having run "brew upgrade", which many users do
> routinely.

I'm sorry, but either someone will have to come up with a _very_ safe
fix, or users of macOS will need to delay upgrading or live with Emacs
27 (or patch their sources manually on their own risk).