LICENSE.TXT

Copyright (c) 1991–2019 by the GMT Team (https://www.generic-mapping-tools.org/team.html)

As of GMT 5.0.0, GMT is distributed under the GNU Lesser General Public
License (LGPL) version 3 or later. Copies of the GNU General Public
License (GPL) and the GNU Lesser General Public License (LGPL) are
distributed along with the sources. Refer to the files COPYINGv3 and
COPYING.LESSERv3.

NOTE: Some of the source files in src/ have different licenses. For
instance Shewchuk's Delaunay Triangulator (triangle.c) is distributed
under a proprietary non-permissive license. Refer to the license in
every source file. Users who wish to enforce strict GPL or LGPL
conformance are advised to exclude copylefted sources in
cmake/ConfigUser.cmake.

Permission to use, copy, modify, and distribute (with no more than a
reasonable redistribution fee) this software and its documentation for
any purpose is hereby granted, provided that the above copyright notice
appear in all copies, that both that copyright notice and this
permission notice appear in supporting documentation, and that the name
of GMT not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission. The GMT package may be included in a bundled distribution
of software for which a reasonable fee may be charged.

The GMT package 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.
In particular, the authors or any other individuals involved in the design and
maintenance of GMT, as well as their employers, are NOT responsible
for any damage that may follow from correct or incorrect use of these programs.
It is provided with no support and without obligation on the part of the authors,
to assist in its use, correction, modification, or enhancement.