[QGIS-Developer] QGIS and spatialite

[Andreas Neumann]

Hi all,

During my modernization of my underlying OS (Ubuntu 18.04 --> 20.04) I 
am also modernizing my self-compiled geo libraries.

I am struggling with libspatialite. What libspatialite versions are you 
guys using?  I am trying to compile libspatialite-4.3.0a, but it 
complains about not finding "proj_api.h" (although this file is 
available at /usr/local/include). I tried both with proj-6.3.2 and 
proj-7.0.1. libspatialite-4.3.0a isn't happy with either proj version. 
Is there a newer libspatialite available somewhere? I noticed that there 
hadn't been a lot of activity with this library in the past months/years.

On a related question: could I build QGIS without libspatialite? I 
failed to do so, but maybe there are some tricks.

Thanks for any hints,

Andreas