[Proj] Use of SQLite

Greg Troxel gdt at lexort.com
Mon May 21 09:16:23 EST 2018

> For the sake of avoiding to have different proj flavours, I'd be
> inclined to make sqlite a required dependency of proj. SQLite is
> available anywhere, so this shouldn't cause practical issues (binary
> distributions of the GIS stack have all sqlite packaged, being a
> requirement of GDAL, QGIS, spatialite, etc...). The SQLite
> capabilities and API effectively needed shouldn't require imposing a
> version newer than 3.7.0.

Agreed on making it mandatory - having it optional seems like a lot of
pain for no benefit.

3.7.0 sounds old enough that it's fair to tell anyone with something
older than that that they have to deal, even without understanding their

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