<?xml version="1.0" encoding="UTF-8"?>
<SPDXLicenseCollection xmlns="http://www.spdx.org/license">
<license licenseId="GPL-2.0" isOsiApproved="true"
name="GNU General Public License v2.0 only"
deprecatedVersion="3.0">
<obsoletedBys>
<obsoletedBy>GPL-2.0-only</obsoletedBy>
<obsoletedBy expression="GPL-2.0+">GPL-2.0-or-later</obsoletedBy>
</obsoletedBys>
<crossRefs>
<crossRef>https://www.gnu.org/licenses/old-licenses/gpl-2.0-standalone.html</crossRef>
<crossRef>https://opensource.org/licenses/GPL-2.0</crossRef>
</crossRefs>
<standardLicenseHeader>
Copyright (C) <alt name="copyright" match=".+">yyyy name of author</alt>
<p>
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; version 2.
</p>
<p>
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.
</p>
<p>
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<optional spacing="after">,</optional>
USA.
</p>
</standardLicenseHeader>
<text>
<titleText>
<p>
GNU GENERAL PUBLIC LICENSE<br></br>
Version 2, June 1991
</p>
</titleText>
<p>
Copyright (C) 1989, 1991 Free Software Foundation, Inc.<alt name="incComma" match=",|"/><br/>
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301<optional spacing="after">,</optional>
USA
</p>
<p>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
</p>
<p>
Preamble
</p>
<p>
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 Lesser General
Public License instead.) You can apply it to your programs, too.
</p>
<p>
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.
</p>
<p>
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.
</p>
<p>
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.
</p>
<p>
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.
</p>
<p>
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.
</p>
<p>
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.
</p>
<p>
The precise terms and conditions for copying,
distribution and modification follow.
</p>
<p>
<alt name="termsTitle" match="GNU GENERAL PUBLIC LICENSE|"/>
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
</p>
<list>
<item>
<bullet>0.</bullet>
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".
<p>
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.
</p>
</item>
<item>
<bullet>1.</bullet>
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.
<p>
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.
</p>
</item>
<item>
<bullet>2.</bullet>
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:
<list>
<item>
<bullet>a)</bullet>
You must cause the modified files to carry prominent notices
stating that you changed the files and the date of any change.
</item>
<item>
<bullet>b)</bullet>
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.
</item>
<item>
<bullet>c)</bullet>
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.)
</item>
</list>
<p>
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.
</p>
<p>
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.
</p>
<p>
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.
</p>
</item>
<item>
<bullet>3.</bullet>
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:
<list>
<item>
<bullet>a)</bullet>
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,
</item>
<item>
<bullet>b)</bullet>
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,
</item>
<item>
<bullet>c)</bullet>
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.)
</item>
</list>
<p>
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.
</p>
<p>
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.
</p>
</item>
<item>
<bullet>4.</bullet>
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.
</item>
<item>
<bullet>5.</bullet>
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.
</item>
<item>
<bullet>6.</bullet>
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.
</item>
<item>
<bullet>7.</bullet>
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.
<p>
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.
</p>
<p>
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.
</p>
<p>
This section is intended to make thoroughly clear what is
believed to be a consequence of the rest of this License.
</p>
</item>
<item>
<bullet>8.</bullet>
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.
</item>
<item>
<bullet>9.</bullet>
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.
<p>
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.
</p>
</item>
<item>
<bullet>10.</bullet>
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.
<p>
NO WARRANTY
</p>
</item>
<item>
<bullet>11.</bullet>
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.
</item>
<item>
<bullet>12.</bullet>
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.
</item>
</list>
<optional>
<p>
END OF TERMS AND CONDITIONS
</p>
<p>
How to Apply These Terms to Your New Programs
</p>
<p>
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.
</p>
<p>
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.
</p>
<p>
<optional spacing="none"><</optional>one line to give the program's name and <alt name="ideaArticle" match="a brief|an">an</alt> idea of what it does.<optional spacing="none">></optional>
<br></br>
Copyright (C)
<optional spacing="before"><</optional><alt name="templateYear" match="yyyy|year">yyyy</alt><optional spacing="after">></optional>
<optional spacing="before"><</optional>name of author<optional spacing="none">></optional>
</p>
<p>
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.
</p>
<p>
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.
</p>
<p>
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<optional spacing="after">,</optional>
USA.
</p>
<p>
Also add information on how to
contact you by electronic and paper mail.
</p>
<p>
If the program is interactive, make it output a short
notice like this when it starts in an interactive mode:
</p>
<p>
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.
</p>
<p>
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.
</p>
<p>
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:
</p>
<p>
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
</p>
<p>
<optional spacing="none"><</optional>signature of Ty Coon<optional spacing="none">></optional>,
1 April 1989 Ty Coon, President of Vice
</p>
</optional>
<optional>
<p>
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.
</p>
</optional>
</text>
</license>
</SPDXLicenseCollection>