Built mapserver 7.7 from the master on github, using Debian Bullseye & Postgresql 13 with PostGis v 3..
root@bullseye-alpha:/home/osm/var/www/gis# mapserv -v MapServer version 7.7-dev OUTPUT=PNG OUTPUT=JPEG OUTPUT=KML SUPPORTS=PROJ SUPPORTS=AGG SUPPORTS=FREETYPE SUPPORTS=CAIRO SUPPORTS=ICONV SUPPORTS=FRIBIDI SUPPORTS=WMS_SERVER SUPPORTS=WFS_SERVER SUPPORTS=WCS_SERVER SUPPORTS=FASTCGI SUPPORTS=GEOS SUPPORTS=POINT_Z_M SUPPORTS=PBF INPUT=JPEG INPUT=POSTGIS INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE root@bullseye-alpha:/home/osm/var/www/gis# While scanning the debug.log, noticed debugFile.log:[Mon Nov 23 16:24:25 2020].912914 PROJ: Debug: proj_as_proj_string: Cannot find proj.db debugFile.log:[Mon Nov 23 16:24:25 2020].913854 PROJ: Debug: proj_create_operation_factory_context: Cannot find proj.db The map presents ok as far as I can tell. Is this cause for concern as a Google search shows a number of hits with various software having a similar message. To compile MapServer I used proj-bin/testing,now 7.2.0-1 amd64 [installed] proj-data/testing,now 7.2.0-1 all [installed,automatic] libproj-dev/testing,now 7.2.0-1 amd64 [installed,automatic] and gdal-bin/testing,now 3.1.4+dfsg-1+b1 amd64 [installed] gdal-data/testing,now 3.1.4+dfsg-1 all [installed] libgdal-dev/testing,now 3.1.4+dfsg-1+b1 amd64 [installed] These are the ones available from the Bullseye repository. I am not clear where the proj.db file would have been installed, and where it should go / how it is referenced in the MapServer directory structure.
