GPL(GNU)                   Free Software Foundation                   GPL(GNU)



                             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 soft-
       ware--to make sure the software is free for all its users.   This  Gen-
       eral  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 pro-
       grams, 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 ser-
       vice 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  dis-
       tribute 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 soft-
       ware.  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 pro-
       prietary.  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 modifi-
       cation 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 run-
       ning 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  Pro-
       gram.

       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  stat-
           ing 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 identifi-
       able 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 collec-
       tive 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 inter-
           change; 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-read-
           able 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, par-
       ties 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 pro-
       hibited  by law if you do not accept this License.  Therefore, by modi-
       fying 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 orig-
       inal  licensor  to  copy,  distribute  or modify the Program subject to
       these terms and conditions.  You may not impose  any  further  restric-
       tions  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 dis-
       tribute 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  circum-
       stances.

       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  imple-
       mented  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 cer-
       tain 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 limita-
       tion 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  condi-
       tions  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 WAR-
       RANTY 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 WRIT-
       ING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
       REDISTRIBUTE  THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAM-
       AGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL  DAM-
       AGES  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













               Appendix: 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) 19yy < name of author >

           This program is free software; you can redistribute it and/or  mod-
           ify  it  under  the terms of the GNU General Public License as pub-
           lished by the Free Software Foundation; either  version  3  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  MER-
           CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Gen-
           eral Public License for more details.

           You should have received a copy of the GNU General  Public  License
           along       with      this      program.      If      not,      see
           <http://www.gnu.org/licenses/>.

       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) 19yy name of author
           Gnomovision comes with ABSOLUTELY NO  WARRANTY;  for  details  type
           `show  w'.   This  is  free software, and you are welcome to redis-
           tribute it under certain conditions; type `show c' for details.

       The hypothetical commands `show w' and `show c' should show the  appro-
       priate  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 pro-
           gram  `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  applica-
       tions  with  the  library.  If this is what you want to do, use the GNU
       Library General Public License instead of this License.



GNU                                   GPL                             GPL(GNU)
