Re: merging of the xwidget branch to master

[Eli Zaretskii <eliz@gnu.org>]

> From: Jonas Bernoulli <jonas@bernoul.li>
> Cc: joakim@verona.se, emacs-devel@gnu.org
> Date: Mon, 02 Feb 2015 09:43:16 +0100
> 
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >>   What window system should Emacs use?                    x11
> >>   What toolkit should Emacs use?                          GTK3
> >>   ...
> >>   Does Emacs support Xwidgets?                            no
> >>        Does xwidgets support webkit(requires gtk3)?       no
> >>        Does xwidgets support gobject introspection?       no
> >
> > As another comment on the configure script in this area, I would
> > suggest a prominent error message if xwidgets were requested, but the
> > configure script decided not to turn on this option.  Currently, it
> > does that silently (except for the above indication, which can easily
> > get lost among the others), which IMO is bad UI.  If the user asked
> > for xwidgets, but we cannot give it, we should complain loudly.
> 
> I had similar issues with other options, e.g.  `--with-imagemagick'
> did not work because the installed version is to old (Debian lagging
> behind), but I also got no warning except for the "no" which quickly
> scrolled by.

Showing "no" is already better than what we have with xwidgets.  But I
agree that an explicit error is even better.