GPL(GNU)             Free Software Foundation            GPL(GNU)                       GNU GENERAL PUBLIC LICENSE                          Version 2, June 1991       Copyright (C) 1989, 1991 Free Software Foundation, Inc.       59 Temple Place, Suite 330, Boston, MA 02111, 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 free-       dom 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.  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If the software is modi-       fied 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 theGNU                            GPL                              1GPL(GNU)             Free Software Foundation            GPL(GNU)       original authors' reputations.       Finally, any free  program  is  threatened  constantly  by       software patents.  We wish to avoid the danger that redis-       tributors 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                            GPL                              2GPL(GNU)             Free Software Foundation            GPL(GNU)                       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 trans-       lated into another language.  (Hereinafter, translation is       included without limitation in the  term  "modification".)       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You may modify your copy or copies of  the  Program  or       any  portion  of it, thus forming a work based on the Pro-       gram, 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  pub-           lish,  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 inter-           actively  when  run,  you  must cause it, when startedGNU                            GPL                              3GPL(GNU)             Free Software Foundation            GPL(GNU)           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.  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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  cus-           tomarily 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  customar-           ily used for software interchange; or,       c)  Accompany  it  with the information you received as toGNU                            GPL                              4GPL(GNU)             Free Software Foundation            GPL(GNU)           the offer to  distribute  corresponding  source  code.           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However, nothing else grants you per-       mission to modify or distribute the Program or its deriva-       tive works.  These actions are prohibited by law if you do       not  accept this License.  Therefore, by modifying or dis-       tributing 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.GNU                            GPL                              5