PostGIS adds support for geographic objects to the PostgreSQL object-relational
database. In effect, PostGIS "spatially enables" the PostgreSQL server,
allowing it to be used as a backend spatial database for geographic information
systems (GIS).
SFCGAL is an optional dependency for advanced 3D support.
protobuf-c is an optional dependency for MapBox vector tile support.
To disable the GTK-based graphical interface for shp2pgsql, set GUI=no.
To include the shp2pgsql plugin for pgAdmin set PGADMIN=yes.