Re: %desktop-services now depends on Qt 5, via colord

[Nils Gillmann <ng0@n0.is>]

Efraim Flashner transcribed 2.9K bytes:
> On Sat, Jul 14, 2018 at 02:00:38PM -0400, Mark H Weaver wrote:
> > Hi Tobias,
> > 
> > me@tobias.gr (Tobias Geerinckx-Rice) writes:
> > 
> > > nckx pushed a commit to branch master
> > > in repository guix.
> > >
> > > commit 407ef4b38ad394e0b63320b029d95afdd3da6888
> > > Author: Tobias Geerinckx-Rice <me@tobias.gr>
> > > Date:   Tue Jun 19 20:02:42 2018 +0200
> > >
> > >     gnu: hplip: Add Qt GUI support.
> > >     
> > >     Some tools (like ‘hp-toolbox’) still refuse to launch, but at least
> > >     others (like ‘hp-systrax’) now seem to work.
> > >     
> > >     * gnu/packages/cups.scm (hplip)[arguments]: Add #configure-flags for Qt.
> > >     [inputs]: Add python-gobject and python-pyqt.
> > 
> > Until this commit, it was possible to build a desktop system without Qt.
> > No longer.
> > 
> > This commit effectively added most of Qt 5 as a new dependency of
> > 'colord' (via 'sane-backends' and 'hplip'), which in turn means that
> > _any_ GuixSD system that uses %desktop-services now depends on Qt 5
> > libraries, including:
> > 
> >    qtbase
> >    qtconnectivity
> >    qtdeclarative
> >    qtlocation
> >    qtmultimedia
> >    qtsensors
> >    qtserialport
> >    qtsvg
> >    qttools
> >    qtwebchannel
> >    qtwebsockets
> >    qtx11extras
> >    qtxmlpatterns
> > 
> > I would greatly prefer to preserve a straightforward way to build a
> > desktop system, e.g. a GNOME system, without building Qt 5.
> > 
> > Thoughts?
> > 
> >        Mark
> > 
> 
> It sounds like adding Qt to hplip adds plenty of GUI goodies. Could we
> leave hplip as-is and have sane-backends depend on a Qt-less
> hplip-minimal or hplip-nogui, since it shouldn't need any GUI from hplip?

Yes, please. This was my criticism for not making a hplip-qt like I was told
when I worked on it.

Furtermore it might be time to make a "minimal" (subjective) and
"normal" desktop sets for services.

> -- 
> Efraim Flashner   <efraim@flashner.co.il>   אפרים פלשנר
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