Copyright (c) 2001,2010 NoMachine (http://www.nomachine.com)
Copyright (c) 2000,2003 Gian Filippo Pinzari
Copyright (c) 2008-2014 Oleksandr Shneyder <o.shneyder@phoca-gmbh.de>
Copyright (c) 2011-2016 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
Copyright (c) 2014-2016 Ulrich Sibiller <uli42@gmx.de>
Copyright (c) 2014-2016 Mihai Moldovan <ionic@ionic.de>
Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com)

NXCOMP library and NX extensions to X are copyright of the aforementioned
copyright holders. Redistribution and use of this software is allowed
according to the following terms:

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License Version 2, and
not any other version, as published by the Free Software Foundation.

This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTA-
BILITY 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 program; if not, you can request a copy to NoMachine
or write to the Free Software Foundation, Inc., 51 Franklin Street, Suite
330, Boston, MA  02110-1301 USA

==============================================================================

Parts of this software are derived from DXPC project. These copyright
notices apply to original DXPC code:

Redistribution and use in source and binary forms are permitted provi-
ded that the above copyright notice and this paragraph are duplicated
in all such forms.

THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.

Copyright (c) 1995,1996,2000,2006 Brian Pane
Copyright (c) 1996,1997 Zachary Vonler and Brian Pane
Copyright (c) 1999 Kevin Vigor and Brian Pane
<crossed-out>Copyright (c) 2000,2006 Gian Filippo Pinzari and Brian Pane</crossed-out>

All rights reserved.

==============================================================================

Update 2015-05-21 on the nature of the original DXPC license: The
original DXPC code used to be available under a license which failed to
explicitly grant the permission to modify, but was later retroactively
re-licensed under the 2-clause BSD license (see
doc/nxcomp/README.on-retroactive-DXPC-license for the copyright owners'
statements; also see <https://bugs.debian.org/784565> for more details).

In the course of discussion, it also became evident that Gian Filippo
Pinzari never participated in any of the official DXPC releases, but
rather worked on the forked code on the NoMachine side. Thus, we
crossed-out his name in the above copyright notice and moved him to the
top list of copyright holders associated with the GPL-2 re-licensing done
by NoMachine.

Thus, the version of DXPC where NXCOMP got forked from (most likely some
DXPC version between release 3.7.0 and release 3.8.0) can be considered
as BSD-2-clause, as quoted below:

Copyright (c) 1995,1996 Brian Pane
Copyright (c) 1996,1997 Zachary Vonler and Brian Pane
Copyright (c) 1999-2002 Kevin Vigor and Brian Pane
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright
  notice, this list of conditions and the following disclaimer.

* Redistributions in binary form must reproduce the above copyright
  notice, this list of conditions and the following disclaimer in the
  documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
DAMAGE.
