[QGIS-Developer] qgis ubuntu 20.04 dependencies

[Even Rouault]

Le 19/06/2023 à 20:44, Hugh Kelley a écrit :
> OK thanks, exactly the general guidance I was looking for. I'll look 
> into upgrading. Is there currently a version that makes things easiest?


QGIS continuous integration uses:

- ubuntu 22.04 for QT5 builds: 
https://github.com/qgis/QGIS/blob/master/.docker/qgis3-qt5-build-deps.dockerfile

- Fedora 38 for QG6 builds: 
https://github.com/qgis/QGIS/blob/master/.docker/qgis3-qt6-build-deps.dockerfile

>
>
>
> On Mon, Jun 19, 2023 at 2:34 PM Even Rouault 
> <even.rouault at spatialys.com> wrote:
>
>     Building recent QGIS versions on 20.04 is going to be quite a lot
>     of pain since you'll need indeed to have a qt 5.15 build, and all
>     the other auxiliary QT based dependencies build against it.
>
>     I'd suggest you update to 22.04 at least. Or if you don't want to
>     do development but can live with released versions, try
>     conda-forge builds (cf https://plugins.qgis.org/planet/tag/conda/)
>
>     Le 19/06/2023 à 20:30, Hugh Kelley via QGIS-Developer a écrit :
>>     Hi all,
>>
>>     while working on compiling qgis on ubuntu using these
>>     instructions [0] , i've run into an error while running cmake
>>     that "QRecursiveMutex" is not found.
>>
>>     It looks like that became available in QT 5.14.
>>
>>     Ubuntu 20.04 installs QT 5.12. During my searches i've seen
>>     comments that imply 5.15 might not be available for 20.04.  I'm
>>     trying to figure out whether I should be trying to upgrade Qt, if
>>     I have to upgrade Ubuntu, or if there is some option in the
>>     compilation process that can resolve this for me.
>>
>>     I've installed Qt 5.15.2 to /opt/ and added it to PATH, but
>>     qtdiag still indicates i'm using 5.12.x
>>
>>     I thought i'd start by asking here before asking on a Qt general
>>     forum in case there's a qgis specific solution.
>>
>>     I've also set the cmake 3d option to "no" which got me around the
>>     absence of q qt 3d extras pacakge/file. So maybe there's a
>>     similar solution for this although this version problem seem more
>>     essential.
>>
>>     Thanks for any suggestions!
>>
>>
>>
>>
>>     [0] https://github.com/qgis/QGIS/blob/master/INSTALL.md
>>
>>     -- 
>>     Hugh Kelley
>>
>>
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>
>     -- 
>     http://www.spatialys.com
>     My software is free, but my time generally not.
>
>
>
> -- 
> Hugh Kelley
>
-- 
http://www.spatialys.com
My software is free, but my time generally not.
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