# database.
#---------------------------------------------------------------
-# Set USE_PROJ to 1 for Proj4 reprojection support
+# Set USE_PROJ to 1 for Proj4 reprojection support (recommended)
#
# Reprojection allows you to transform coordinate systems
# in the database with the Transform() function.
#---------------------------------------------------------------
# Set USE_GEOS to 1 for GEOS spatial predicate and operator
-# support
+# support (recommended)
#
# GEOS allows you to do exact topological tests, such as
# Intersects() and Touches(), as well as geometry operations,