10

If you develop a new program, and you want it to be of the greatest 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 © <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 © 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 LESSER GENERAL PUBLIC

 

LICENSE

 

Version 2.1, February 1999

 

Copyright © 1991, 1999 Free Software Foundation, Inc.

 

51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

 

Everyone is permitted to copy and distribute verbatim copies of this license document,

 

but changing it is not allowed.

 

[This is the first released version of the Lesser GPL. It also counts as the successor of the

 

GNU Library Public License, version 2, hence the version number 2.1.]

 

Preamble

 

The licenses for most software are designed to take away your freedom to share and

 

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140

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