Getting a list of existing packages

[Dan Langille]

Please cc me on any replies.

I'm trying to find a way of determining whether or not a given port 
should have a package.  I would prefer to obtain this information via 
make. e.g. make -V PACKAGEEXISTS

Looking at the various settings in Mk/*, I'm not seeing anything 
which is obviously the solution.

Clues please?

background: Yes, this is for FreshPorts code.  When a commit is 
processed, the database will be updated with this information.
-- 
Dan Langille : http://www.langille.org/