[yocto] Help in building an ad-hoc qte image

[Andrea Adami]

On Tue, May 29, 2012 at 12:56 PM, Paul Eggleton
<paul.eggleton at linux.intel.com> wrote:
> On Tuesday 29 May 2012 12:25:27 marco.monguzzi at exorint.it wrote:
>> let me rephrase for the sake of clearness.
>> This part of recipe:
>>
>> RDEPENDS_${PN}-base_ANOTHERBOARD  = " \
>>         libqt-embeddedphonon4 \
>>         qt4-embedded-plugin-phonon-backend-gstreamer \
>>         "
>>
>> has the ultimate goal of adding phonon + gstreamer backend
>> for ANOTHERBOARD only to the rootfs.
>> It appears ok. We normally do not get indeed phonon + gstreamer backend.
>>

and btw this doesn't look right to me.

maybe you meant

>> RDEPENDS_${PN}-base_append_ANOTHERBOARD  = " \

Finally, it looks like you could easily workaround your problem by
defining a specific recipe for ANOTHERBOARD.

Regards

Andrea

P.S.: try bitbake -g XYZ  or   bitbake -g -u depexp XYZ  to quickly
inspect dependencies



>> The issue is that we get contents of
>> meta\recipes-multimedia\gstreamer\gstreamer_0.10.36.bb
>> (see original post for listing) in the rootfs and do not get what pull
>> them in.
>
> Ah, right, now I understand the question. So you've asked for task-qt4e-xyz-
> base to be installed, and task-qt4e-xyz-base for ANOTHERBOARD RDEPENDS upon
> qt4-embedded-plugin-phonon-backend-gstreamer. The "missing link" is that in
> do_package we have some code to analyse shared libraries (.so) that are going
> into a package in order to detect which other shared libraries they need, and
> if any are found we look to see which package provides them and automatically
> add that package to RDEPENDS. Thus we look at the .so files in qt4-embedded-
> plugin-phonon-backend-gstreamer and determine from them that gstreamer is
> required, thus gstreamer (along with libgstaudio and libgstvideo) is added to
> RDEPENDS. See classes/package.bbclass if you want to see the code for this
> (look for shlibdeps).
>
> Note that sometimes this highlights problems with package granularity - I
> don't know enough about gstreamer to know if any of the files currently in the
> "gstreamer" package could actually be separated out if they aren't desired in
> some installations. Occasionally as a result we do split packages further to
> avoid unnecessary files being installed for all situations.
>
> Cheers,
> Paul
>
> --
>
> Paul Eggleton
> Intel Open Source Technology Centre
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