[m-rev.] for review: update to Boehm GC v8.2.4

[Peter Wang]

On Mon, 10 Jul 2023 14:22:57 +1000 Julien Fischer <jfischer at opturion.com> wrote:
> 
> Hi Peter,
> 
> On Mon, 10 Jul 2023, Peter Wang wrote:
> 
> > Hi Julien,
> >
> > I've pushed the tag 'release-8_2-mercury-20230706-rc' to our
> > bdwgc repository. Can you test it on MacOS and Windows?
> 
> I assume I just checkout that tag in the boehm_gc directory of
> my workspace?  Do I need to do anything with libatomic_ops?

Run 'git submodule update' in the boehm_gc directory
so it checks out the newer version of libatomic_ops
(I forgot to mention that). It will say:

Submodule path 'libatomic_ops': checked out 'af9acfaac0a2daac226a8df4c92b14cf2a25463f'

Peter