7
possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and
change under these terms. To do so, attach the following notices to the program. It is safest to attach them to the start of
each source file to most effectively
convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full
notice is found.
<one line to give the program's name and a brief idea of what it does.>Copyright (C) <year><name of author>
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. Also, add information on how to contact you
by electronic and paper mail.
If the program is interactive, make it output a short notice like this when it starts in an interactive mode: Gnomovision
version 69, Copyright (C) year name of author Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show
w'.
This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The
hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course,
the commands you use may be called something other than `show w' and `show c'; they could even be mouse-clicks or
menu items--whatever suits your program. You should also get your employer (if you work as a programmer) or your school,
if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names: Yoyodyne, Inc., hereby
disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989 Ty Coon, President of Vice
This General Public License does not permit incorporating your program into proprietary programs. If your program is a
subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what
you want to do, use the GNU Lesser General Public License instead of this License.
GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright © 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.
Preamble
The GNU General Public License is a free, copyleft license for software and other kinds of works. The licenses for most
software and other practical works are designed to take away your freedom to share and change the works. By contrast, the
GNU General Public License is
intended to guarantee your freedom to share and change all versions of a program--to make sure it remains free software
for all its users. We, the Free Software Foundation, use the GNUGeneral Public License for most of our software; it applies
also to any other work released
this way by its authors. You can apply it to your programs, too.When we speak of free software, we are referring to freedom,
not price. Our General PublicLicenses are designed to make sure that you have the freedom to distribute copies of
freesoftware (and charge for them if you wish), that you receive source code or can get it if youwant it, that you can change
the software or use pieces of it in new free programs, and thatyou know you can do these things.To protect your rights, we
need to prevent others from denying you these rights or asking youto surrender the rights. Therefore, you have certain
responsibilities if you distribute copies ofthe software, or if you modify it: responsibilities to respect the freedom of others.For
example, if you distribute copies of such a program, whether gratis or for a fee, you must pass on to the recipients the same
freedoms that you received. You must make sure that they, too, receive or can get the source code. And you must show