Ruby posix_mq 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 either under the terms of the GNU
Lesser General Public License as published by the Free Software Foundation,
version 3.0 or later {LGPLv3+}[https://www.gnu.org/licenses/lgpl-3.0.txt]
(see link:COPYING).

It is also available under the GNU General Public License
{GPLv2}[https://www.gnu.org/licenses/gpl-2.0.txt] (see link:COPYING-GPL2).

Ruby posix_mq 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 Lesser
General Public License for more details.

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