Dependency chain issue...

Nathanael D. Noblet nathanael at
Tue Feb 3 15:39:13 UTC 2015

On Tue, 2015-02-03 at 05:49 +0100, Kevin Kofler wrote:
> Nathanael d. Noblet wrote:
> >   I have F21 Workstation installed. I installed liveusb-creator and the
> > following was the dependency chain installed.
> > 
> >
> > 
> >   The real odd parts are all the multi-media being installed. This seems
> > to stem from phonon being included in the chain. I don't really know why
> > it is. Is this a bug?
> Problem #1 is that PyQt4 is not split into subpackages for the different Qt 
> modules being bound, so you end up with the Phonon and QtWebKit bindings 
> installed, which drag in the rest. So far we have chickened out of splitting 
> PyQt4, we'll need to look into this issue in the KDE SIG.
> Problem #2 is that you are getting phonon-backend-vlc instead of phonon-
> backend-gstreamer, which ends up dragging in a lot of dependencies. Try 
> using --exclude=phonon-backend-vlc to force yum to pick -gstreamer instead. 
> This is a result of phonon-backend-vlc being in RPM Fusion (and you having 
> that enabled). It gets preferred by yum for some reason (shorter name? fewer 
> direct dependencies? something else? I don't know which of the many criteria 
> is being used here). I have always said that having phonon-backend-vlc in 
> the repositories is a bad idea (because you end up with a different default 
> backend depending on the repositories you have selected, leading to a 
> support nightmare), but I wasn't listened to. (In fact, this even affects 
> builds of KDE packages in RPM Fusion, where phonon-backend-vlc also gets 
> dragged in, and thus the KDE packages cannot be rebuilt against a new FFmpeg 
> before VLC is. That sucks.)

Ah I see. Well thanks for the info. I was pretty surprised to see all
these multi-media related things being dragged in for what is
essentially a dd wrapper.

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