Re: [PATCH 3/4] gnu: libcanberra: Add propagated-input.

[Federico Beffa]

On Sun, Dec 21, 2014 at 12:06 PM, Ludovic Courtès <address@hidden> wrote:
> Federico Beffa <address@hidden> skribis:
>
>> I propose to make sound-theme-freedesktop a propagated input of
>> libcanberra. This is because, according to the XDG sound theme
>> specification, those event sounds should always be present and used as
>> fall-back in case other sounds are not present.
>>
>> http://www.freedesktop.org/wiki/Specifications/sound-theme-spec/
>
> That’s not the right fix, I think.  For instance, if Evince is installed
> in a profile, but libcanberra itself is not in the profile, then the
> sound theme is not pulled and ends up not being used.
>
> Would it be possible, instead, to patch libcanberra to refer to the
> sound-theme directory as its fallback?

The location of the sound theme is specified, among other things, by
the variable XDG_DATA_DIRS. So, if an application makes use of the
glib-or-gtk-build-system and has the sounds as inputs, then it should
find them.  I don't think we need to patch libcanberra in any way.

With my suggestion I was trying to avoid having to specify
sound-theme-freedesktop in addition to libcanberra in every gtk
application (as, e.g., evince).

If we make libcanberra a propagated-input of applications like evince,
then they would automatically know the location of the sounds (by the
inheritance of propagated inputs).

>
> Thanks,
> Ludo’.