[oe] Question about RDEPENDS and RRECOMMENDS

[Paul Eggleton]

On Sunday 15 February 2015 19:34:28 Otavio Salvador wrote:
> On Sat, Feb 14, 2015 at 6:42 AM, Carlos Rafael Giani
> <dv at pseudoterminal.org> wrote:
> ...
> > So, it would make sense to establish some sort of dependency. But how
> > 
> > exactly? I thought of something like this:
> >   RDEPENDS_gstreamer1.0-plugins-imx-imxaudio =
> > 
> > "gstreamer1.0-plugins-good-audioparsers"
> > 
> >   RDEPENDS_gstreamer1.0-plugins-imx-imxvpu =
> > 
> > "gstreamer1.0-plugins-bad-videoparsersbad"
> > 
> > but then I also need to add gstreamer1.0-plugins-good and
> > gstreamer1.0-plugins-bad to the DEPENDS list, otherwise I get a warning
> > 
> > like:
> >   QA Issue: gstreamer1.0-plugins-imx-imxaudio rdepends on
> > 
> > gstreamer1.0-plugins-good-audioparsers, but it isn't a build dependency?
> > [build-deps]
> > 
> > But if I add these recipes to the DEPENDS variable, then the RDEPENDS spec
> > is pointless, isn't it?
>...
>
> Just for completeness, the QA issue about missing build-dependency is
> something we should pay attention to but it may be a false positive as
> in your cause you don't depends on them for building, just runtime. So
> you can whitelist the warning to avoid the noise but adding the
> depends would be wrong.

The QA warning message could perhaps be worded more accurately - what it means 
is there in an implicit runtime dependency and there is no RDEPENDS (not 
DEPENDS) explicitly telling the system to ensure that that dependency is 
satisfied. Whitelisting is never the proper way to fix this warning - either add 
an explicit RDEPENDS, or use configuration to ensure that the implicit 
dependency isn't needed.

Cheers,
Paul

-- 

Paul Eggleton
Intel Open Source Technology Centre