Openscenegraph-dev hard links with Qt4. Binding for Qt5 desired.

[Rob van der Meer]

We are evaluating 14.04 for our future releases. In this process we have upgraded our own software to the
qt5 packages delivered the installation. We are dependent on the openscenegraph-dev package also, which is
linked to qt4 however (osgQt). This causes a linking conflict with nice segmentation faults as a consequence.

A option would be to make the openscenegraph-qt bindings a separate package and provide both the qt4 and qt5 bindings.
Is this possible? And can it be implemented in the final 14.04LTS? We can provide assistance in testing.

Regards,
Rob van der Meer

---
R. van der Meer M.Sc.
System Architect
Robin Radar Systems
<email address hidden>

[Ubuntu Foundations Team Bug Bot (crichton)]

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[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Guilhem Saurel (nim65s)]

Hi,

Any news for this ?

The log¹ says "Dependency on Qt upgraded from version 4 to 5 (Closes: #875075).", but on 20.04 I can't find any dependency on Qt, 4 or 5:

- /usr/lib/x86_64-linux-gnu/pkgconfig/openscenegraph-osgQt.pc was removed between 18.04 & 20.04,
- `apt depends openscenegraph` shows "libqtcore4 (>= 4:4.5.3)" on 18.04 but nothing in 20.04.

¹: http://changelogs.ubuntu.com/changelogs/pool/universe/o/openscenegraph/openscenegraph_3.6.4+dfsg1-3build2/changelog

[Guilhem Saurel (nim65s)]

I guess the log only comes from this in Debian: https://salsa.debian.org/openscenegraph-team/openscenegraph-3.2/-/commit/3dbd461f69b744874d6868f4fae2247ecba217e9 ; but it might not have actually been applied here, right ?

[Rob van der Meer (rob-vandermeer)]

Hi,

This report is of ages ago! I is not longer relevant to me, suggest to
close it and ignore it.

Regards, Rob

Op wo 13 mei 2020 om 14:54 schreef Guilhem Saurel <
<email address hidden>>:

> I guess the log only comes from this in Debian: https://salsa.debian.org
> /openscenegraph-
> team/openscenegraph-3.2/-/commit/3dbd461f69b744874d6868f4fae2247ecba217e9
> ; but it might not have actually been applied here, right ?
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1279268
>
> Title:
> Openscenegraph-dev hard links with Qt4. Binding for Qt5 desired.
>
> Status in openscenegraph package in Ubuntu:
> Confirmed
>
> Bug description:
> We are evaluating 14.04 for our future releases. In this process we have
> upgraded our own software to the
> qt5 packages delivered the installation. We are dependent on the
> openscenegraph-dev package also, which is
> linked to qt4 however (osgQt). This causes a linking conflict with nice
> segmentation faults as a consequence.
>
> A option would be to make the openscenegraph-qt bindings a separate
> package and provide both the qt4 and qt5 bindings.
> Is this possible? And can it be implemented in the final 14.04LTS? We
> can provide assistance in testing.
>
> Regards,
> Rob van der Meer
>
> ---
> R. van der Meer M.Sc.
> System Architect
> Robin Radar Systems
> <email address hidden>
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/openscenegraph/+bug/1279268/+subscriptions
>

--
---
R. van der Meer M.Sc.
System Engineer
[phone]
<email address hidden>

ROBIN radar systems b.v.
Laan van Waalhaven 355
2497GM The Hague
The Netherlands
www.robinradar.com

[Guilhem Saurel (nim65s)]

It's still relevant to me and my team. This package is the only thing preventing us to switch everything to Qt5, and honestly compiling anything for Qt4 is a pain…

[Guilhem Saurel (nim65s)]

I understood. 20.04 has OSG 3.6, and in 3.6, OSG moved osgQt in a separate source tree: http://www.openscenegraph.org/index.php/community/press-releases/223-openscenegraph-3-6-0-release

Then I think we can close this.