[hurd,commited] htl: Add missing fork.h

[Samuel Thibault]

Adhemerval Zanella, le mer. 24 mars 2021 09:56:47 -0300, a ecrit:
> On 24/03/2021 09:45, Samuel Thibault wrote:
> > Adhemerval Zanella, le mer. 24 mars 2021 09:40:36 -0300, a ecrit:
> > > Why exactly tst-atfork2 fails without this includes?
> > 
> > It misses the atfork unregister hook called at module unload.
> 
> Ok, but *why* exactly? The sysdeps/htl/pt-atfork.c already
> includes register-atfork.h after the fork.h inclusion.

It's not pt-atfork.c which needs UNREGISTER_ATFORK, but
stdlib/cxa_finalize, which gets it from fork.h

Samuel