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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 GNU General 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
Public Licenses are designed to make sure
that you have the freedom to distribute copies
of free software (and charge for them 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 prevent
others from denying you these rights or asking
you to surrender the rights. Therefore, you
have certain responsibilities if you distribute
copies of the 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.