converting a package to modular xorg

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

What is the proper way to convert a package to modular xorg?  Doing a
pkg_comp build to convert some of my machines, I found three packages
that won't work with it: net/pload, net/mtr, and x11/stalonesystray.
I'm the maintainer of stalonesystray, so I can't ask someone else to
fix it, but I don't know how...  Stalonesystray and pload both use
x11.buildlink3.mk only, and no other X libraries.  mtr uses it and gtk
-- not gtk2 -- which I seem to recall is deprecated.

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