rq2proxy is licenced under the terms of either the GNU Library General Public Licence, version 2 or above, or under the terms of Larry Wall's Artistic Licence, at your option. A copy of both licences may be found in the distribution directory under the names LGPL-2.txt and Artistic.txt respectively.
Note that the files config.sub and config.guess are part of GNU autoconf.
The latest distribution of rq2proxy can always be obtained from
http://epona.ucam.org/rrw/qproxy.html.
rq2proxy is Copyright (c) Richard Watts (Richard.Watts@cl.cam.ac.uk), 1998.