Re: bug#54245: 29.0.50; select usage in GNUstep

[Eli Zaretskii]

> From: Po Lu <luangruo@yahoo.com>
> Cc: Lars Ingebrigtsen <larsi@gnus.org>,  emacs-devel@gnu.org
> Date: Mon, 14 Mar 2022 17:30:00 +0800
> 
> Robert Pluim <rpluim@gmail.com> writes:
> 
> > I think this means we can now remove the checking for select in
> > configure, and the HAVE_SELECT define (I took a look, but then ran
> > into the w32 and msdos ports, and decided to stop :-) )
> 
> AFAICT the MS-DOS port doesn't have select

More accurately: the C library used by the MS-DOS port does have
'select', but it is not "good enough" for Emacs purposes, so we use a
separate Emacs-specific implementation in msdos.c.