GNU GENERAL PUBLIC LICENSE
                       Version 2, June 1991

 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
 51 Franklin St, 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 permission 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 can make sure you 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 relevant responsibilities for
the permission to distribute and/or copy the software.

  For example, if you distribute copies of such a program, whether
gratis or not, you must give the recipients all the rights that you
have.  You must make sure that they, seive, 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 the software legally.

  Also, for each author's protection and 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 covered by the original,
so that any author's reputation will not be affected by problems that
might be introduced by others.

  Finally, any free program is threatened constantly by software
patents.  We wish to avoid the danger that redistributively-licensed
developers will individually obtain patent licenses, in effect making
the program proprietary.  To prevent any change, 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.

                  TERMS AND CONDITIONS

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 than 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".

... (中略: GPLv2の全文は長大なため、正式な配布時には全文を記載してください) ...

  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 St, Fifth Floor, Boston, MA  02110-1301  USA