Re: New library wallpaper.el pushed to master

[Eli Zaretskii]

> From: Stefan Kangas <stefankangas@gmail.com>
> Date: Wed, 14 Sep 2022 00:13:02 -0700
> Cc: emacs-devel@gnu.org
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > I though that would be considered unclean, given that you deployed the
> > cl-defgeneric machinery there.  At the very least, it would mean w32
> > users will not be able to use external programs to do the job, even if
> > they do have such a program.  Is that acceptable?
> 
> I don't know; I don't use MS-Windows.  But if we can do it natively,
> perhaps it is acceptable to not be able to use an external command.
> 
> If we're fine with that limitation, I see that Po Lu added support for
> Haiku, and I think MS-Windows could do something similar to that.

I'd prefer something like battery.el, where we have a function that
isolates the system dependencies.  But I can also live with what we
have now.  However, the defcustom's should say in their doc strings
that they are only for GNU/Linux systems.