[osg-users] Linux packaging: Qt 4 vs 5

François Cami fcami at fedoraproject.org
Fri Jul 15 02:26:51 PDT 2016


On Fri, Jul 15, 2016 at 9:15 AM, Alberto Luaces <aluaces at udc.es> wrote:
> Hi Stuart,
> Stuart Mentzer writes:
>> Hello,
>> The OpenSceneGraph-qt/-devel (OSG 3.4.0) packages on Fedora 24 are
>> built against Qt 4. I'm wondering if that is suggested by OSG (maybe
>> due to the single thread restriction on Qt 5) or is the choice of the
>> Fedora packager.
> I think the main reason is to support existing code using OSG and Qt4 on
> their repositories.  However, I expect all distributions to begin
> shipping OSG and Qt5 since Qt4 is fading away.

In some cases it is worth maintaining two versions of the same
library, but yes, the Qt4 build will go away sooner than later.

>> I am able to run our OSG applications with Qt 5 on Windows and I'd
>> like to try it on Linux to see if we can transition off Qt 4. Would it
>> make sense to request OpenSceneGraph-qt5 packages be added by the main
>> distros? (I am assuming those are the only OSG packages with Qt
>> dependencies.) If so, how best to do that?
> Personally I think that it would make sense.  You would usually file a
> bug report against the OSG package.  For example, Debian has a
> "wish-list" category for that kind of petitions.  You could also address
> the maintainer personally.

The Fedora procedure would be to file a bug at https://bugzilla.redhat.com.
You can try to email OpenSceneGraph-owner at fedoraproject.org afterwards.


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