key: cygwin-exception-2.0 short_name: Cygwin exception to GPL 2.0 name: Cygwin exception to GPL 2.0 category: Copyleft Limited owner: Cygwin Project homepage_url: http://cygwin.com/licensing.html is_exception: yes spdx_license_key: LicenseRef-scancode-cygwin-exception-2.0 text_urls: - http://cygwin.com/cgi-bin/cvsweb.cgi/src/winsup/CYGWIN_LICENSE?cvsroot=src standard_notice: | This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License (GPL) version 2, 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 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, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *** NOTE *** In accordance with section 10 of the GPL, Red Hat permits programs whose sources are distributed under a license that complies with the Open Source definition to be linked with libcygwin.a without libcygwin.a itself causing the resulting program to be covered by the GNU GPL. This means that you can port an Open Source(tm) application to cygwin, and distribute that executable as if it didn't include a copy of libcygwin.a linked into it. Note that this does not apply to the cygwin DLL itself. If you distribute a (possibly modified) version of the DLL you must adhere to the terms of the GPL, i.e. you must provide sources for the cygwin DLL. See http://www.opensource.org/docs/osd/ for the precise Open Source Definition referenced above. Red Hat sells a special Cygwin License for customers who are unable to provide their application in open source code form. For more information, please see: http://www.redhat.com/software/cygwin/, or call +1-866-2REDHAT ext. 45300 (toll-free in the US). Outside the US call your regional Red Hat office, see http://www.redhat.com/about/contact/ww/ text: | In accordance with section 10 of the GPL, Red Hat permits programs whose sources are distributed under a license that complies with the Open Source definition to be linked with libcygwin.a without libcygwin.a itself causing the resulting program to be covered by the GNU GPL.