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GNU GENERAL PUBLIC
LICENSE
Version 2, June 1991
Copyright
(C) 1989, 1991 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.
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.
For example, if you distribute copies of such a
program, whether gratis or for a fee, you must give the recipients all the
rights that you have. You must make
sure that they, too, receive or can get the source code. And you must show them these terms so they
know their rights.
We protect
your rights with two steps: (1) copyright the software, and (2) offer you this
license which gives you legal permission to copy, distribute and/or modify the
software.
Also, for
each author's protection and ours, we want to make certain that everyone
understands that there is no warranty for this free software. If the software is modified by someone else
and passed on, we want its recipients to know that what they have is not the
original, so that any problems introduced by others will not reflect on the
original authors' reputations.
Finally, any
free program is threatened constantly by software patents. We wish to avoid the danger that
redistributors of a free program will individually obtain patent licenses, in
effect making the program proprietary.
To prevent this, we have made it clear that any patent must be licensed
for everyone's free use or not licensed at all.
The precise
terms and conditions for copying, distribution and modification follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND
CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This
License applies to any program or other work which contains a notice placed by
the copyright holder saying it may be distributed under the terms of this
General Public License. The
"Program", below, refers to any such program or work, and a
"work based on the Program" means either the Program or any
derivative work under copyright law: that is to say, a work containing the
Program or a portion of it, either verbatim or with modifications and/or
translated into another language.
(Hereinafter, translation is included without limitation in the term
"modification".) Each
licensee is addressed as "you".
Activities other than copying, distribution and
modification are not covered by this License; they are outside its scope. The act of running the Program is not
restricted, and the output from the Program is covered only if its contents
constitute a work based on the Program (independent of having been made by
running the Program). Whether that is true depends on what the Program does.
1. You may
copy and distribute verbatim copies of the Program's source code as you receive
it, in any medium, provided that you conspicuously and appropriately publish on
each copy an appropriate copyright notice and disclaimer of warranty; keep
intact all the notices that refer to this License and to the absence of any
warranty; and give any other recipients of the Program a copy of this License along
with the Program.
You may charge a fee for the physical act of
transferring a copy, and you may at your option offer warranty protection in
exchange for a fee.
2. You may
modify your copy or copies of the Program or any portion of it, thus forming a
work based on the Program, and copy and distribute such modifications or work
under the terms of Section 1 above, provided that you also meet all of these
conditions:
a) You must
cause the modified files to carry prominent notices stating that you changed
the files and the date of any change.
b) You must
cause any work that you distribute or publish, that in whole or in part
contains or is derived from the Program or any part thereof, to be licensed as
a whole at no charge to all third parties under the terms of this License.
c) If the
modified program normally reads commands interactively when run, you must cause
it, when started running for such interactive use in the most ordinary way, to
print or display an announcement including an appropriate copyright notice and
a notice that there is no warranty (or else, saying that you provide a
warranty) and that users may redistribute the program under these conditions,
and telling the user how to view a copy of this License. (Exception: if the Program itself is
interactive but does not normally print such an announcement, your work based
on the Program is not required to print an announcement.)
These requirements apply to the modified work as a
whole. If identifiable sections of that
work are not derived from the Program, and can be reasonably considered
independent and separate works in themselves, then this License, and its terms,
do not apply to those sections when you distribute them as separate works. But when you distribute the same sections as
part of a whole which is a work based on the Program, the distribution of the
whole must be on the terms of this License, whose permissions for other
licensees extend to the entire whole, and thus to each and every part
regardless of who wrote it.
Thus, it is not the intent of this section to claim
rights or contest your rights to work written entirely by you; rather, the
intent is to exercise the right to control the distribution of derivative or collective
works based on the Program. In addition, mere aggregation of another work not
based on the Program with the Program (or with a work based on the Program) on
a volume of a storage or distribution medium does not bring the other work
under the scope of this License.
3. You may copy and distribute the Program (or a work
based on it, under Section 2) in object code or executable form under the terms
of Sections 1 and 2 above provided that you also do one of the following:
a)
Accompany it with the complete corresponding machine-readable
source
code, which must be distributed under the terms of Sections
1 and 2
above on a medium customarily used for software interchange; or,
b)
Accompany it with a written offer, valid for at least three years, to give any
third party, for a charge no more than your cost of physically performing source distribution, a complete
machine-readable copy of the corresponding source code, to be distributed under the terms of Sections 1
and 2 above on a medium customarily used for software interchange; or,
c)
Accompany it with the information you received as to the offer to distribute corresponding
source code. (This alternative is
allowed only for noncommercial distribution and only if you received the
program in object code or executable form with such an offer, in accord with
Subsection b above.)
The source code for a work means the preferred form of
the work for making modifications to it.
For an executable work, complete source code means all the source code
for all modules it contains, plus any associated interface definition files,
plus the scripts used to control compilation and installation of the
executable. However, as a special
exception, the source code distributed need not include anything that is
normally distributed (in either source or binary form) with the major
components (compiler, kernel, and so on) of the operating system on which the
executable runs, unless that component itself accompanies the executable.
If distribution of executable or object code is made
by offering access to copy from a designated place, then offering equivalent access
to copy the source code from the same place counts as distribution of the
source code, even though third parties are not compelled to copy the source
along with the object code.
4. You may
not copy, modify, sublicense, or distribute the Program except as expressly
provided under this License. Any
attempt otherwise to copy, modify, sublicense or distribute the Program is void,
and will automatically terminate your rights under this License. However,
parties who have received copies, or rights, from you under this License will not
have their licenses terminated so long as such parties remain in full
compliance.
5. You are
not required to accept this License, since you have not signed it. However, nothing else grants you permission
to modify or distribute the Program or its derivative works. These actions are prohibited by law if you
do not accept this License. Therefore,
by modifying or distributing the Program (or any work based on the Program),
you indicate your acceptance of this License to do so, and all its terms and conditions
for copying, distributing or modifying the Program or works based on it.
6. Each time
you redistribute the Program (or any work based on the Program), the recipient
automatically receives a license from the original licensor to copy, distribute
or modify the Program subject to these terms and conditions. You may not impose any further restrictions
on the recipients' exercise of the rights granted herein. You are not
responsible for enforcing compliance by third parties to this License.
7. If, as a
consequence of a court judgment or allegation of patent infringement or for any
other reason (not limited to patent issues), conditions are imposed on you
(whether by court order, agreement or otherwise) that contradict the conditions
of this License, they do not excuse you from the conditions of this
License. If you cannot distribute so as
to satisfy simultaneously your obligations under this License and any other
pertinent obligations, then as a consequence you may not distribute the Program
at all. For example, if a patent license
would not permit royalty-free redistribution of the Program by all those who
receive copies directly or indirectly through you, then the only way you could
satisfy both it and this License would be to refrain entirely from distribution
of the Program.
If any portion of this section is held invalid or
unenforceable under any particular circumstance, the balance of the section is
intended to apply and the section as a whole is intended to apply in other circumstances.
It is not the purpose of this section to induce you to
infringe any patents or other property right claims or to contest validity of
any such claims; this section has the sole purpose of protecting the integrity
of the free software distribution system, which is implemented by public
license practices. Many people have
made generous contributions to the wide range of software distributed through
that system in reliance on consistent application of that system; it is up to
the author/donor to decide if he or she is willing to distribute software
through any other system and a licensee cannot impose that choice.
This section is intended to make thoroughly clear what
is believed to be a consequence of the rest of this License.
8.
If the distribution and/or use of the Program is restricted in certain
countries either by patents or by copyrighted interfaces, the original
copyright holder who places the Program under this License may add an explicit
geographical distribution limitation excluding those countries, so that
distribution is permitted only in or among countries not thus excluded. In such case, this License incorporates the
limitation as if written in the body of this License.
9.
The Free Software Foundation may publish revised and/or new versions of the
General Public License from time to time.
Such new versions will be similar in spirit to the present version, but
may differ in detail to address new problems or concerns.
Each version is given a distinguishing version
number. If the Program specifies a
version number of this License which applies to it and "any later
version", you have the option of following the terms and conditions either
of that version or of any later version published by the Free Software
Foundation. If the Program does not specify
a version number of this License, you may choose any version ever published by
the Free Software Foundation.
10. If you
wish to incorporate parts of the Program into other free programs whose
distribution conditions are different, write to the author to ask for
permission. For software which is
copyrighted by the Free Software Foundation, write to the Free Software
Foundation; we sometimes make exceptions for this. Our decision will be guided by the two goals of preserving the
free status of all derivatives of our free software and of promoting the
sharing and reuse of software generally.
NO WARRANTY
11. BECAUSE
THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM,
TO THE EXTENT PERMITTED BY APPLICABLE LAW.
EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY
KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND
PERFORMANCE OF THE PROGRAM IS WITH YOU.
SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY
SERVICING, REPAIR OR CORRECTION.
12. IN NO
EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY
COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE
PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,INCLUDING ANY GENERAL,
SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR
INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA
BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER
OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
END
OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
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
(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 LESSER GENERAL PUBLIC
LICENSE
Version 2.1, February
1999
Copyright
(C) 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 change it.
By contrast, the GNU General Public Licenses are intended to guarantee
your freedom to share and change free software--to make sure the software is
free for all its users.
This license,
the Lesser General Public License, applies to some specially designated
software packages--typically libraries--of the Free Software Foundation and
other authors who decide to use it. You
can use it too, but we suggest you first think carefully about whether this
license or the ordinary General Public License is the better strategy to use in
any particular case, based on the explanations below.
When we speak
of free software, we are referring to freedom of use, 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 and use pieces of it in new
free programs; and that you are informed that you can do these things.
To protect
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these rights or to ask you to surrender these rights. These restrictions translate to certain responsibilities for you
if you distribute copies of the library or if you modify it.
For example,
if you distribute copies of the library, whether gratis or for a fee, you must
give the recipients all the rights that we gave you. You must make sure that they, too, receive or can get the source code. If you link other code with the library, you
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know their rights.
We protect
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OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Libraries
If you develop a new library, and you want it to be of
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Inc., hereby disclaims all copyright interest in the library `Frob' (a library
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Vice
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