Log Message:
geography/mapserver: Question postgis bl3

Postgis operates within pgsql, so you use it via sql, not by linking.
It can make sense to DEPEND on it, but bl3 seems irregular.

Note that mapserver was not revbumped on postgis update because I
don't believe it really depends on it this way and thus any ABI change
is not really a change to the ABI used by mapserver.