I am confused about the use of the BULK_PREREQ variable to the pkg
make system.  I have mine set in /etc/mk.conf to require xpkgwedge.
That works fine if I invoke bulk makes via the scripts in
pkgsrc/mk/bulk.  However, if I try the bulk-package target in a
typical package directory, xpkgwedge is not installed (though digest
is).  This is also true when I set the variable in the shell from
which I invoke make or when I set it on the make command line.

How should I be doing this?

Cheers,
Brook