Building gm2, where to start?

[Ben Stuyts]

Hi all,

First, thank you Gaius for all the great work on gm2 and it’s great to see it 
is now a standard part of gcc.

Many years ago I played around with gm2, using the patch files that Gaius 
provided. I’d like to get into it again but I am at a loss about the 
instructions for building (or even getting) it. So a few questions please:

- Can somebody please point me to the correct gcc git repo I should use to get 
the latest and greatest?
- Are the build instructions the same as the usual gcc, but with the added gm2 
(m2?) language specified?

I’d like to build it on FreeBSD-amd64, FreeBSD-aarch64 and maybe MacOS Sonoma 
on an M2. But I read in some messages that the latter has quite a few problems 
to get it to compile.

Unfortunately the prebuilt packages for FreeBSD do not have gm2 enabled as far 
as I can tell, so those are not a good starting point for me. And anyway, I’d 
rather have a git repo with Gaius’ latest patches in it.

Thanks,
Ben