GrafX2 is distributed under GPLv2; however, some files are imported from other projects and have different licenses. Here is a list of the GrafX2 contributors, as well as a list of files with different ownership or license. 6502.{c,h} =========== MOS 6502 CPU Emulator v0.1 Copyright (C) 1999-2021 Manuel Sainz de Baranda y Goñi. Special RELICENSE granted to GrafX2 (http://pulkomandy.tk/projects/GrafX2) As an exception to the terms of the GNU General Public License, either version 3 of the License, or any later version, permission is granted to the GrafX2 project to use, include and modify the sources of the 6502 library without prejudice or detriment to the terms of the GNU General Public License v2, under wich that program is released. In this particular case, the source code of the 6502 library, if included as an internal part of the GrafX2 application, can be distributed under the terms of the GNU General Public License version 2. This relicense is only valid for the current version of 6502 library (v0.1), and granted to the GrafX2 project since it is distributed under the terms of the GNU General Public License version 2 but not later versions, which is not compatible with the GNU General Public License version 3 or later. Manuel Sainz de Baranda y Goñi, 2021-01-23 6502types.h =========== unknown cpc_scr_simple_loader.h ======================= unknown impdraw_loader.h ================ Copyright 2018 AsT/iMP4CT Incuded in GrafX2 with the author's authorization granted here: https://amstradplus.forumforever.com/t462-iMPdraw-v2-0.htm?start=45 This code is embedded by GrafX2 in saved images for some file formats. You are free to use the generated images without any restrictions or obligations caused by the use of this code. misc/c64viewer/* ================ Copyright 2019 Thomas Bernard This code is embedded by GrafX2 in saved images for some file formats. You are free to use the generated images without any restrictions or obligations caused by the use of this code. libraw2crtc.{c,h} ================= Copyright 2008 CloudStrife Originally under licence libre CeCILL v2. This license allows reuse in GrafX2 and diffusion under the GPL version 2 (section 5.3.4 of the license). mountlist.{c,h} =============== Copyright (C) 1991, 1992, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc. GNU GPL version 2 or later. recoil.{c,h} ============ These files are generated from recoil sources at build time. Copyright 2014-2020 Piotr Fusik and other recoil authors. GNU GPL version 2 or later. SDLMain.{m,h} ========= Copyright ???? Darrell Walisser Copyright ???? Max Horn These files were released with the SDL library under the GNU LGPL v2.1. SFont.{c,h} =========== SFont 2.03 from http://www.linux-games.com/sfont/ Copyright 2018 Thomas Bernard Copyright 2011 Yves Rizoud Copyright 2003 Karl Bartel Copyright 2002 Florian Hufsky Copyright 2000 Matthias Braun GNU GPL version 2 or later, or GNU LGPL 2.1 or later. Other files =========== Copyright 2020 Lai Kwun Hang Copyright 2019 Jaume Delclòs Coll Copyright 2019 Romain Graillot Copyright 2019 Helmut Grohne Copyright 2018-2020 Ryo Onodera Copyright 2018-2019 Nic Soudée Copyright 2018-2019 François Revol Copyright 2018 Frederic Cambus Copyright 2018 Jordan Christiansen Copyright 2018 Alex Myczko Copyright 2018 Alexander Wilms Copyright 2018 Philip Linde Copyright 2017-2020 Thomas Bernard Copyright 2015-2018 Adrian Castravete Copyright 2014 Sergii Pylypenko Copyright 2012 Matthias Ruster (mazzearos) Copyright 2011-2012 Pawel Góralski (nokturnal) Copyright 2010 Alexander Filyanov Copyright 2009 Pasi Kallinen Copyright 2009 Petter Lindquist Copyright 2010 Fernando Mastandrea (masta.uy) Copyright 2008-2009 Peter Gordon Copyright 2008-2012 Franck Charlet Copyright 2008-2020 Yves Rizoud Copyright 2007-2021 Adrien Destugues Copyright 1996-2001 Sunset Design (Guillaume Dorme & Karl Maritaud) GNU GPL version 2.