tracking down an indirect reference

["Steven M. Bellovin" <smb%cs.columbia.edu@localhost>]

I'm trying to update a package.  When doing a 'make configure', it
complains that

        ERROR: opencdk is not installed; can't buildlink files.

The problem is that I can't figure out where this is coming from.
Presumably, *something* is asking for it; I just don't know what.
There are no references to opencdk anywhere in the work subtree; I've
also checked all of the pkgsrc directories for everything included.  I
haven't tried figuring out the complete dependency tree.  I did grep
all of /usr/pkg/* to see if anything even mentioned opencdk; the only
thing that did is the documentation for gnutls.  Any suggestions how to
locate this?  (Aside: gnutls is indeed in the dependency chain for the
package I'm working on.)


                --Steve Bellovin, http://www.cs.columbia.edu/~smb