License

This software is distributed under the Public Domain. Since it is
not enough anymore to tell people: 'hey, just do with it whatever
you like to do', you can consider this software being distributed
under the CC0 Public Domain Dedication
(http://creativecommons.org/publicdomain/zero/1.0/legalcode.txt).

In cases, where the law prohibits the recognition of Public Domain
software, this software can be licensed under the zlib license as
stated below:

Copyright (C) 2012-2020 Marcus von Appen <marcus@sysfault.org>

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 acknowledgement 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.

Some files are not covered by the license above.

• For examples/resources/tuffy.ttf, examples/resources/tuffy.copy.ttf and sdl2/test/resources/tuffy.ttf the following terms apply:

  We, the copyright holders of this work, hereby release it into the
  public domain. This applies worldwide.
  
  In case this is not legally possible,
  
  We grant any entity the right to use this work for any purpose, without
  any conditions, unless such conditions are required by law.
  
  Thatcher Ulrich <tu@tulrich.com> http://tulrich.com
  Karoly Barta bartakarcsi@gmail.com
  Michael Evans http://www.evertype.com
  

• doc/python.inv

  An inventory index for linking to the proper places in the Python documentation, taken from http://docs.python.org/2/. Its copyright and license information can be found at http://docs.python.org/2/copyright.html and http://docs.python.org/2/license.html.