unxf is copyrighted Free Software by all contributors, see logs
in revision control for names and email addresses of all of them.

You can redistribute it and/or modify it under the terms of the GNU
General Public License (GPL), version 2 (or later) as published by
the Free Software Foundation.  Currently, the GPL version 3 is
preferred.

unxf is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with this library; if not, see:
https://www.gnu.org/licenses/gpl-3.0.txt