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- The PLplot package may be distributed under the terms of the GNU General
- Public License (GPL), except as noted below. The text of this license is
- given in the file COPYING in the distribution directory.
-
- The PLplot library may be distributed under the terms of the GNU Library
- General Public License (LGPL), except as noted below. The text of this
- license is given in the file COPYING.LIB in the distribution directory.
-
- The startup code used in argument handling (utils/plrender.c and
- src/plargs.c) is partially derived from "xterm.c" of the X11R5
- distribution, and its copyright is reproduced here:
-
- ******************************************************************************
- Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts,
- and the Massachusetts Institute of Technology, Cambridge, Massachusetts.
-
- All Rights Reserved
-
- Permission to use, copy, modify, and distribute this software and its
- documentation for any purpose and without fee is hereby granted,
- provided that the above copyright notice appear in all copies and that
- both that copyright notice and this permission notice appear in
- supporting documentation, and that the names of Digital or MIT not be
- used in advertising or publicity pertaining to distribution of the
- software without specific, written prior permission.
-
- DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
- ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
- DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
- ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
- WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
- ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
- SOFTWARE.
- ******************************************************************************
-
- Any file that is explicitly marked as "public domain" is free from any
- restriction on distribution.
-
- Any file that has a explicit copyright notice may be distributed under
- the terms of both the GPL and whatever stated conditions accompany the
- copyright.
-
- Notes: the intent behind these licenses is to ensure that PLplot continues
- to evolve in a positive way, while remaining freely distributable.
- Placing the library under the LGPL enables software developers to use the
- PLplot library as an integral part of their product, even a commercial
- product. Under the conditions of the LGPL, however, the source code to
- the library must remain freely available. This means that if you modify
- the library to better suit your purposes, you are required to distribute
- those changes freely to the general PLplot user community.
-
-