Banning installation of particular packages

[Andrew Smallshaw <andrews%sdf.lonestar.org@localhost>]

Is there any way I can name particular packages as ones that should
never be installed on a particular system under any circumstances?
I write this after having to uninstall CUPS for what seems like at
least the dozenth time.  It and a couple of other packages get
pulled in by seemingly random packages, and I'd rather not have
them anywhere near my system.

-- 
Andrew Smallshaw
andrews%sdf.lonestar.org@localhost