LEVELDB_LIBRARY - Only when building with LevelDB; path to libleveldb.a/libleveldb.so/libleveldb.dll.a
LEVELDB_DLL - Only when building with LevelDB on Windows; path to libleveldb.dll
PostgreSQL_INCLUDE_DIR - Only when building with PostgreSQL; directory that contains libpq-fe.h
- POSTGRESQL_LIBRARY - Only when building with PostgreSQL; path to libpq.a/libpq.so
+ PostgreSQL_LIBRARY - Only when building with PostgreSQL; path to libpq.a/libpq.so/libpq.lib
REDIS_INCLUDE_DIR - Only when building with Redis; directory that contains hiredis.h
REDIS_LIBRARY - Only when building with Redis; path to libhiredis.a/libhiredis.so
SPATIAL_INCLUDE_DIR - Only when building with LibSpatial; directory that contains spatialindex/SpatialIndex.h