OK thanks, exactly the general guidance I was looking for. I'll look into upgrading. Is there currently a version that makes things easiest?
On Mon, Jun 19, 2023 at 2:34 PM Even Rouault <even.roua...@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 > > > _______________________________________________ > QGIS-Developer mailing listqgis-develo...@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer > > -- http://www.spatialys.com > My software is free, but my time generally not. > > -- Hugh Kelley
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