I ran into build problem with tests. We may be missing a dependency check for spatialite-tools on a fresh build, but don't explicitly check for its existence when building the test target. As a result, the test target fails downstream when a require data dependency is missing.

Here's the error I got:

$ mkdir build
$ cmake 

TilePix only supports orthogonal maps (currently - hopefully we'll be able to support other types in the future). A sensible error should be returned on Reading a map which doesn't have orientation="orthogonal".

Need to set up a constant for each type:

• orthogonal
• hexagonal
• isometric
• staggered

Then, using a switch statement, check against each, returning an error if not