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 every- one 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 effec- tively 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 an idea of what it does.
Copyright (C) yyyy 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 ver- sion.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FIT-
NESS 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 out- put a short notice like this when it starts in an interactive mode: Gnomovision ver- sion 69, Copyright (C) year name of author Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free soft- ware, and you are welcome to redistrib- ute it under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropri- ate 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
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 sam- ple; 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 (C) 1991, 1999 Free Software Foundation, Inc.
51 Franklin Street, Fifth Floor, Boston, MA
Everyone is permitted to copy and distrib- ute verbatim copies of this license docu- ment, but changing it is not allowed.
[This is the first released version of the Lesser GPL. It also counts as the suc- cessor 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 change it. By contrast, the GNU General Public Licenses are intend- ed to guarantee your freedom to share and change free
This license, the Lesser General Public License, applies to some specially desig- nated software
