cleaning up lib*-dev packages?

[Eric Cooper <ecc@cmu.edu>]

I use deborphan to get rid of unneeded packages on my system.
But I have various lib*-dev packages installed to satisfy the
build-dependencies of packages that I maintain or otherwise build from
source.  Deborphan reports these as orphaned, but I (usually) still need
them.  (When the build-dependencies change, some of these might
really be orphans, but I can't easily tell.)

Is there a way to tell deborphan to follow the build-dependencies
of a set of source packages?  I know about deborphan's keep file,
but that's too tedious to keep up-to-date by hand.
Is there another tool I should be using?

-- 
Eric Cooper             e c c @ c m u . e d u