Copyright (C) 2001-2012 Free Software Foundation, Inc. See the end of the file for license conditions. This directory contains scripts for building the DJGPP (a.k.a. MS-DOS) version of Emacs, and other files useful for running that version of Emacs. The files emacs.ico and emacs.pif are for using the DJGPP version on Windows 3.X. Since these are binary files, their copyright notice is reproduced here: # Copyright (C) 1993, 2002-2012 Free Software Foundation, Inc. # # This file is part of GNU Emacs. # # This file is free software; as a special exception, the author gives # unlimited permission to copy and/or distribute it, with or without # modifications, as long as this notice is preserved. # # This program 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. # # ---------------------------------------------------------------------- NOTE ON THE LEGAL STATUS OF THE FILES IS_EXEC.C, SIGACTION.C As distributed with GNU Emacs, the files is_exec.c and sigaction.c are Copyright (C) 1995 DJ Delorie, and are licensed under the terms of the GNU General Public License version 3 (see COPYING), or (at your option) any later version. Here we record the details of the legal history of these files. The files is_exec.c and sigaction.c were originally part of DJGPP, distributed by DJ Delorie. The versions of these files in DJGPP contain the following license notice: Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details The contents of the file COPYING.DJ (as available at, for example, the URL: ) are as follows: -- COPYING.DJ STARTS HERE -- This is the file "COPYING.DJ". It does NOT apply to any sources or binaries copyrighted by UCB Berkeley, the Free Software Foundation, or any other agency besides DJ Delorie and others who have agreed to allow their sources to be distributed under these terms. Copyright Information for sources and executables that are marked Copyright (C) DJ Delorie 334 North Rd Deerfield NH 03037-1110 This document is Copyright (C) DJ Delorie and may be distributed verbatim, but changing it is not allowed. Source code copyright DJ Delorie is distributed under the terms of the GNU General Public License, with the following exceptions: * Sources used to build crt0.o, gcrt0.o, libc.a, libdbg.a, and libemu.a are distributed under the terms of the GNU Library General Public License, rather than the GNU GPL. * Any existing copyright or authorship information in any given source file must remain intact. If you modify a source file, a notice to that effect must be added to the authorship information in the source file. * Runtime binaries, as provided by DJ in DJGPP, may be distributed without sources ONLY if the recipient is given sufficient information to obtain a copy of djgpp themselves. This primarily applies to go32-v2.exe, emu387.dxe, and stubedit.exe. * Runtime objects and libraries, as provided by DJ in DJGPP, when linked into an application, may be distributed without sources ONLY if the recipient is given sufficient information to obtain a copy of djgpp themselves. This primarily applies to crt0.o and libc.a. ----- Changes to source code copyright BSD, FSF, or others, by DJ Delorie fall under the terms of the original copyright. Such files usually have multiple copyright notices in them. A copy of the files "COPYING" and "COPYING.LIB" are included with this document. If you did not receive a copy of these files, you may obtain one from whence this document was obtained, or by writing: Free Software Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA -- COPYING.DJ ENDS HERE -- Both is_exec.c and sigaction.c are parts of DJGPP's libc.a, therefore according to exception 1 in the above terms their "base" license is the GNU Library General Public License [now known as the GNU Lesser General Public License]. The terms of the GNU LGPL, specifically clause 3, which begins: 3. You may opt to apply the terms of the ordinary GNU General Public License instead of this License to a given copy of the Library. permit us to relicense the files is_exec.c and sigaction.c as used in GNU Emacs under the terms of the GNU GPL. COPYING.DJ, however, lists extra exceptions 2-4 to the GNU licenses. Items 3 and 4 are not relevant in the case of GNU Emacs, since they can only apply to copies of DJGPP [confirmed by email from DJ Delorie to rms at gnu.org and others, 2007/01/31]. Exception 2 of COPYING.DJ, when viewed as an added restriction, rather than as an interpretation of the GPL, leads to problems. The added requirement makes the overall license of the file incompatible with the GNU GPL. As a solution to this problem, DJ Delorie has kindly granted (February 2007) GNU Emacs an exception, and permits us to license the files is_exec.c and sigaction.c solely under the terms of the GNU GPL. This exception applies _only_ to these files as distributed with GNU Emacs. This solution was arrived at in an email discussion between DJ Delorie and Richard Stallman in January/February 2007. We record below a summary of the relevant final email in this discussion: From: DJ Delorie To: rms at gnu.org Subject: Re: COPYING.DJ and Emacsn I have no problem with whatever you wish to do with those files in emacs (as long as djgpp itself doesn't need to change). Accordingly, in February 2007 we relicensed the files is_exec.c and sigaction.c as used in GNU Emacs under the GNU GPL. Copies of both the GNU General Public License and GNU Lesser (Library) Public License may be obtained from , or: the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. This file is part of GNU Emacs. GNU Emacs 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 3 of the License, or (at your option) any later version. GNU Emacs 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 GNU Emacs. If not, see .