bug#36609: 27.0.50; Possible race-condition in threading implementation

[Eli Zaretskii]

> Date: Sun, 20 Jun 2021 18:53:40 +0300
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: 36609@debbugs.gnu.org
> 
> > From: dick.r.chiang@gmail.com
> > Cc: 36609@debbugs.gnu.org
> > Date: Sun, 20 Jun 2021 10:01:37 -0400
> > 
> > Yes!  If you just add a negation to the __atomic_sub_fetch call
> 
> You mean, use the patch below instead?
> 
> > this passes all the MREs.
> 
> Thanks, will install soon.

Now done.