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GNU General Public License - Pg. 289

289 Appendix A. The GNU General Public License This is a copy of the GNU General Public License. Those wishing to see the original can do so by visiting the Free Software Foundation Web site. Here is the direct link to the license: On that Web site, you may also want to check out the comparative list of license types (both com- mercial and noncommercial) and how they compare with the GNU GPL. Most interesting there is the definition of whether a license qualifies as free and whether it is compatible with the GPL. Here is that address: Now, without further ado, here is the GNU GPL. GNU General Public License Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Library General Public License instead.) You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs, and that you know you can do these things. To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights. These restrictions translate to certain responsibilities for you if you distribute copies of the software or if you modify it.