Re: Merging MPS a.k.a. scratch/igc, yet again

[Eli Zaretskii]

> From: Gerd Möllmann <gerd.moellmann@gmail.com>
> Cc: Pip Cet <pipcet@protonmail.com>, Helmut Eller <eller.helmut@gmail.com>
> Date: Thu, 19 Dec 2024 19:12:05 +0100
> 
> Pip Cet via "Emacs development discussions." <emacs-devel@gnu.org>
> writes:
> 
> > Does anyone remember what our conclusion was wrt
> > -fno-omit-frame-pointer?  I seem to remember there was a patch to MPS to
> > avoid relying on setjmp() to save all registers, but I'd still be
> > happier if we enabled that for all MPS builds, since we don't know
> > whether our MPS has the patch.
> 
> I'm using -fno-omit-frame-pointer, but I don't remember why. I think
> Helmut said something or so (in CC).

It's because of this:

  https://github.com/Ravenbrook/mps/pull/38

And also see this discussion:

  https://lists.gnu.org/archive/html/emacs-devel/2024-09/msg00132.html