Copyright for yquake2 source package in Bionic

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: Yamagi Quake II
Source: https://github.com/yquake2
Disclaimer:
  This package is in the contrib archive area, which is not part of Debian.
  This package itself is free software, but it is only useful when combined
  with game data. In principle, freely licensed data analogous to OpenQuartz
  and OpenArena could be created for it, but the maintainers are not
  aware of any freely-licensed data that is compatible with Quake II.
Comment:
  The "orig" tarball was repackaged to exclude support files for macOS
  (which include third-party software with source code not provided),
  and an icon whose copyright/licensing was unclear.
Files-Excluded:
  stuff/icon
  stuff/osx

Files: *
Copyright: 1997-2005, Id Software, Inc
  2001, Robert Bäuml
  2002, W. P. va Paassen
  2005, Ryan C. Gordon
  2005, Stuart Dalton (badcdev@gmail.com)
  2010-2013, Yamagi Burmeister
  2010, skuller.net
  2011, Knightmare
  2013, Alejandro Ricoveri
  2015-2017, Daniel Gibson
License: GPL-2+

Files:
 src/backends/generic/header/stb_image_write.h
 src/client/refresh/files/stb_image.h
Copyright:
 © 2017 Sean Barrett
License: Expat or unlicense

Files:
 src/client/refresh/gl3/header/HandmadeMath.h
Copyright: -
License: stb-public-domain
 This software is in the public domain. Where that dedication is not
 recognized, you are granted a perpetual, irrevocable license to copy
 and modify this file however you want.

Files: src/backends/sdl/refresh.c
Copyright:
  2010 Yamagi Burmeister
  1997-2001 Id Software, Inc.
  1997-2013 Sam Lantinga
License: GPL-2+ and Zlib

Files: src/common/md4.c
Copyright: -
License: md4-public-domain
 /*
  * Public Domain C source implementation of RFC 1320
  *       -  The MD4 Message-Digest Algorithm  -
  *
  *        http://www.faqs.org/rfcs/rfc1320.html
  *                    by Steven Fuller
  */

Files: src/common/shared/rand.c
Copyright: 2011, Shinobu
License: rand-public-domain
 /*
  * KISS PRNG (c) 2011 Shinobu
  *
  * This file was optained from zuttobenkyou.wordpress.com
  * and modified by the Yamagi Quake II developers.
  *
  * LICENSE: Public domain
  *
  * =======================================================================
  *
  * KISS PRNG, as devised by Dr. George Marsaglia
  *
  * =======================================================================
  */

Files: src/common/unzip/*
Copyright: 1990-2000, Info-ZIP
  1998-2009, Gilles Vollant
License: Zlib and Info-ZIP

Files:
 src/client/refresh/gl3/glad/include/KHR/khrplatform.h
Copyright:
 © 2008-2009 The Khronos Group Inc.
License: Expat
Comment:
 The exact license on this file is the Expat license with "Software"
 replaced with "Materials" throughout.

Files:
 src/client/refresh/gl3/glad/include/glad/glad.h
 src/client/refresh/gl3/glad/src/glad.c
Copyright: none stated
License: Expat
Comment:
 "OpenGL loader generated by glad 0.1.12a0 on Wed Dec 21 00:44:13 2016."
 glad itself is under the MIT (Expat) license:
    https://github.com/Dav1dde/glad
 and its inputs are also MIT-licensed, so the output is presumably also
 MIT-licensed if it is sufficiently creative to have any copyright at all.

Files: src/client/refresh/gl3/header/DG_dynarr.h
Copyright: 2016 Daniel Gibson
License: dg-permissive
 This software is dual-licensed to the public domain and under the following
 license: you are granted a perpetual, irrevocable license to copy, modify,
 publish, and distribute this file as you see fit.
 No warranty implied; use at your own risk.

Files: debian/*
Copyright: 2013-2015 Fabian Greffrath 
License: GPL-2+

License: GPL-2+
 This package is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2 of the License, or
 (at your option) any later version.
 .
 This package 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 program. If not, see 
 .
 On Debian systems, the complete text of the GNU General
 Public License version 2 can be found in "/usr/share/common-licenses/GPL-2".

License: Zlib
  This software is provided 'as-is', without any express or implied
  warranty.  In no event will the authors be held liable for any damages
  arising from the use of this software.
 .
  Permission is granted to anyone to use this software for any purpose,
  including commercial applications, and to alter it and redistribute it
  freely, subject to the following restrictions:
 .
  1. The origin of this software must not be misrepresented; you must not
     claim that you wrote the original software. If you use this software
     in a product, an acknowledgment in the product documentation would be
     appreciated but is not required.
  2. Altered source versions must be plainly marked as such, and must not be
     misrepresented as being the original software.
  3. This notice may not be removed or altered from any source distribution.

License: Info-ZIP
 This is version 2009-Jan-02 of the Info-ZIP license.
 The definitive version of this document should be available at
 ftp://ftp.info-zip.org/pub/infozip/license.html indefinitely and
 a copy at http://www.info-zip.org/pub/infozip/license.html.
 .
 .
 Copyright (c) 1990-2010 Info-ZIP.  All rights reserved.
 .
 For the purposes of this copyright and license, "Info-ZIP" is defined as
 the following set of individuals:
 .
   Mark Adler, John Bush, Karl Davis, Harald Denker, Jean-Michel Dubois,
   Jean-loup Gailly, Hunter Goatley, Ed Gordon, Ian Gorman, Chris Herborth,
   Dirk Haase, Greg Hartwig, Robert Heath, Jonathan Hudson, Paul Kienitz,
   David Kirschbaum, Johnny Lee, Onno van der Linden, Igor Mandrichenko,
   Steve P. Miller, Sergio Monesi, Keith Owens, George Petrov, Greg Roelofs,
   Kai Uwe Rommel, Steve Salisbury, Dave Smith, Steven M. Schweda,
   Christian Spieler, Cosmin Truta, Antoine Verheijen, Paul von Behren,
   Rich Wales, Mike White.
 .
 This software is provided "as is," without warranty of any kind, express
 or implied.  In no event shall Info-ZIP or its contributors be held liable
 for any direct, indirect, incidental, special or consequential damages
 arising out of the use of or inability to use this software.
 .
 Permission is granted to anyone to use this software for any purpose,
 including commercial applications, and to alter it and redistribute it
 freely, subject to the above disclaimer and the following restrictions:
 .
    1. Redistributions of source code (in whole or in part) must retain
       the above copyright notice, definition, disclaimer, and this list
       of conditions.
 .
    2. Redistributions in binary form (compiled executables and libraries)
       must reproduce the above copyright notice, definition, disclaimer,
       and this list of conditions in documentation and/or other materials
       provided with the distribution.  Additional documentation is not needed
       for executables where a command line license option provides these and
       a note regarding this option is in the executable's startup banner.  The
       sole exception to this condition is redistribution of a standard
       UnZipSFX binary (including SFXWiz) as part of a self-extracting archive;
       that is permitted without inclusion of this license, as long as the
       normal SFX banner has not been removed from the binary or disabled.
 .
    3. Altered versions--including, but not limited to, ports to new operating
       systems, existing ports with new graphical interfaces, versions with
       modified or added functionality, and dynamic, shared, or static library
       versions not from Info-ZIP--must be plainly marked as such and must not
       be misrepresented as being the original source or, if binaries,
       compiled from the original source.  Such altered versions also must not
       be misrepresented as being Info-ZIP releases--including, but not
       limited to, labeling of the altered versions with the names "Info-ZIP"
       (or any variation thereof, including, but not limited to, different
       capitalizations), "Pocket UnZip," "WiZ" or "MacZip" without the
       explicit permission of Info-ZIP.  Such altered versions are further
       prohibited from misrepresentative use of the Zip-Bugs or Info-ZIP
       e-mail addresses or the Info-ZIP URL(s), such as to imply Info-ZIP
       will provide support for the altered versions.
 .
    4. Info-ZIP retains the right to use the names "Info-ZIP," "Zip," "UnZip,"
       "UnZipSFX," "WiZ," "Pocket UnZip," "Pocket Zip," and "MacZip" for its
       own source and binary releases.

License: Expat
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in
 the Software without restriction, including without limitation the rights to
 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
 of the Software, and to permit persons to whom the Software is furnished to do
 so, subject to the following conditions:
 .
 The above copyright notice and this permission notice shall be included in all
 copies or substantial portions of the Software.
 .
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.

License: unlicense
 This is free and unencumbered software released into the public domain.
 Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
 software, either in source code form or as a compiled binary, for any purpose,
 commercial or non-commercial, and by any means.
 .
 In jurisdictions that recognize copyright laws, the author or authors of this
 software dedicate any and all copyright interest in the software to the public
 domain. We make this dedication for the benefit of the public at large and to
 the detriment of our heirs and successors. We intend this dedication to be an
 overt act of relinquishment in perpetuity of all present and future rights to
 this software under copyright law.
 .
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.