larger build process get them from dist/lib at the top-level.
git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@4455 542714f4-19e9-0310-aa3c-eee0fc999fb1
some kind of annoying fiddling to allow its dependencies to come either from
the build directory of its dependee or from lib/.
git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@4423 542714f4-19e9-0310-aa3c-eee0fc999fb1