LICENSE.txt
QGIS is Copyright (C) QGIS Development Team
and the respective authors, 2004.
This program 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 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.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
In addition, as a special exception, the QGIS Development Team gives
permission to link the code of this program with the Qt library,
including but not limited to the following versions (both free and
commercial): Qt/Non-commercial Windows, Qt/Windows, Qt/X11, Qt/Mac,
and Qt/Embedded (or with modified versions of Qt that use the same
license as Qt), and distribute linked combinations including the two.
You must obey the GNU General Public License in all respects for all
of the code used other than Qt. If you modify this file, you may
extend this exception to your version of the file, but you are not
obligated to do so. If you do not wish to do so, delete this exception
statement from your version.