Would need help on setting up a new "Blender" (3D modelling) PPA

[Thomas Schiex]

Hello Jan

Thanks for the advice.

All the packages (the one I'm trying to build - openshadinglanguage- and
the one that cannot be installed but has already been successfully built
- libopenexr21) are in one single PPA. I already have some packages in
this PPA (eg. libopenexr) that depend on other packages provided by the
same PPA and they compiled well on Launchpad. So, it should not be the
source of my problem.

Anyway, I'm open to all ideas and I did try to add the PPA to its own 
dependencies but Launchpad says ' An archive should not depend on itself.'

Any other idea ?
Thomas

> Hi
>
> Try add the setup PPA as a dependency at 'edit ppa dependencies' entry at
> the top right on your PPA page.
>
> Regards,
> Jan
>
>
>
> On 28 December 2014 at 13:46, Thomas Schiex <empnessty at gmail.com> wrote:
>
>>  Dear MOTUs,
>>
>> I'm trying to set up a new PPA for the fantastic 3D modeller tool blender.
>> Until mid 2014, IRIE Shinsuke maintained a Blender PPA for Ubuntu (
>> https://launchpad.net/~irie/+archive/ubuntu/blender). I don't know what
>> happended to IRIE Shinsuke but the PPA has not chnaged since, despite the
>> fact that new Blender versions appeared (moved from 2.71 to 2.73 with
>> several new features).
>>
>> I have been trying to set up a mirror of IRIE's PPA and then update
>> Blender sources to move forward. But because of the intricacy of Blender
>> compilation (it depends on a very large number of external software and
>> libraries which must have precise versions), I have been unable to achieve
>> this. I have been through several issues but I now have an error that I
>> simply don't understand.
>>
>> The Build log is here:
>>
>>
>> https://launchpadlibrarian.net/193587948/buildlog_ubuntu-utopic-amd64.openshadinglanguage_1.5.0-0thomas~utopic0_FAILEDTOBUILD.txt.gz
>>
>> It says that
>>
>> The following packages have unmet dependencies:
>>  libopenexr-dev : Depends: libopenexr21 (= 2.1.0-thomas~utopic0) but it is
>> not going to be installed
>> E: Unable to correct problems, you have held broken packages.
>> apt-get failed.
>>
>> The packages libopenexr-dev and libopenser21 are provided by the setup
>> PPA. I have all those packages installed on my computer with no issue at
>> all, and with a successful debuild. The dependencies of libopenexr21 (=
>> 2.1.0-thomas~utopic0) are very limited so I cannot see what prevents
>> installation:
>>
>> Depends on: libc6 (>=2.14), libgcc1 (>= 1:4.1.1), libilmbase11 (>= 2.1.0),
>>             libstdc++ (>=4.9), zlib1g (>=1:1.1.4)
>> PreDepends: multiarch-support
>> Replaces: libopenexr (< 2.1.0-thomas~utopic0)
>> Breaks: libopenexr21 (!=2.1.0-thomas~utopic0)
>>
>> I have spent quite a time but I fail to understand what is the issue. I
>> thought a fresh eye (and brain) could help. The whole PPA is accessible
>> here:
>>
>> https://launchpad.net/~thomas-schiex/+archive/ubuntu/blender
>>
>> Thomas
>>
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>>
>

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