holding back pkgs from pkgin

[beaker%sdf.org@localhost]

Is there a way to hold back packages from pkgin similar to 'apt-mark <pkg>' ?
Didn't see anything in the manpage and when I try to use 'pkgin import pkg_list.txt'
where the not-to-be-updated pkg has been removed pkgin STILL tries to update the
pkg.  The pkg in question is ../wm/dwm  which I customize in pkgscr and install.
pkgin sees it's installed and always over-writes my custom built binary...