showing dependency information in ports

[Michael P. Soulier]

I'm sure that this has been asked before, but I cannot find the answer
recorded anywhere. I'm likely looking in the wrong places.

Is there a simple tool in freebsd to show the reverse dependency tree of a
package?

ie. D is required by C is required by B is required by A ?

Not to mention forward dependencies?

I suppose I could write one but it seems like this must have been done
already. 

Mike
-- 
Michael P. Soulier <msoulier at digitaltorque.ca>
"Any intelligent fool can make things bigger and more complex... It takes a
touch of genius - and a lot of courage to move in the opposite direction."
--Albert Einstein
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