GPL(1)                     Free Software Foundation                     GPL(1)



NAME
       GPL - GNU General Public License

DESCRIPTION
                             GNU GENERAL PUBLIC LICENSE
                               Version 3, 29 June 2007

       Copyright  (C)  2007  Free  Software Foundation, Inc. <http://fsf.org/>
       Everyone is permitted to copy and distribute verbatim  copies  of  this
       license document, but changing it is not allowed.

                                      Preamble

       The GNU General Public License is a free, copyleft license for software
       and other kinds of works.

       The licenses for most software and other practical works  are  designed
       to  take away your freedom to share and change the works.  By contrast,
       the GNU General Public License is intended to guarantee your freedom to
       share  and  change all versions of a program -- to make sure it remains
       free software for all its users.  We, the Free Software Foundation, use
       the  GNU  General  Public  License for most of our software; it applies
       also to any other work released this way by its authors.  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 them 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 pro-
       grams, and that you know you can do these things.

       To protect your rights, we need to  prevent  others  from  denying  you
       these  rights  or  asking  you to surrender the rights.  Therefore, you
       have certain responsibilities if you distribute copies of the software,
       or if you modify it: responsibilities to respect the freedom of others.

       For example, if you distribute copies of such a program, whether gratis
       or for a fee, you must pass on to the recipients the same freedoms that
       you  received.   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.

       Developers that use the GNU GPL protect your rights with two steps: (1)
       assert copyright on the software, and (2) offer you this License giving
       you legal permission to copy, distribute and/or modify it.

       For  the  developers' and authors' protection, the GPL clearly explains
       that there is no warranty for this free software.  For both users'  and
       authors'  sake,  the  GPL  requires that modified versions be marked as
       changed, so that their problems will not be attributed  erroneously  to
       authors of previous versions.

       Some  devices are designed to deny users access to install or run modi-
       fied versions of the software inside them,  although  the  manufacturer
       can do so.  This is fundamentally incompatible with the aim of protect-
       ing users' freedom to change the software.  The systematic  pattern  of
       such abuse occurs in the area of products for individuals to use, which
       is precisely  where  it  is  most  unacceptable.   Therefore,  we  have
       designed  this  version  of  the GPL to prohibit the practice for those
       products.  If such problems arise substantially in  other  domains,  we
       stand  ready  to  extend this provision to those domains in future ver-
       sions of the GPL, as needed to protect the freedom of users.

       Finally, every program is threatened constantly  by  software  patents.
       States  should  not  allow  patents  to restrict development and use of
       software on general-purpose computers, but in those that do, we wish to
       avoid  the  special danger that patents applied to a free program could
       make it effectively proprietary.  To prevent this, the GPL assures that
       patents cannot be used to render the program non-free.

       The  precise terms and conditions for copying, distribution and modifi-
       cation follow.

                                TERMS AND CONDITIONS

       0. Definitions.

       "This License" refers to version 3 of the GNU General Public License.

       "Copyright" also means copyright-like laws that apply to other kinds of
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       To "convey" a work means any kind of  propagation  that  enables  other
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       An  interactive  user interface displays "Appropriate Legal Notices" to
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       1. Source Code.

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       The  Corresponding  Source  need  not  include  anything that users can
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       The Corresponding Source for a work in source code form  is  that  same
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       2. Basic Permissions.

       All rights granted under this License are granted for the term of copy-
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       Conveying under any other circumstances is permitted solely  under  the
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       3. Protecting Users' Legal Rights From Anti-Circumvention Law.

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       When  you  convey  a  covered work, you waive any legal power to forbid
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       4. Conveying Verbatim Copies.

       You  may  convey  verbatim  copies  of the Program's source code as you
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       You may charge any price or no price for each copy that you convey, and
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       5. Conveying Modified Source Versions.

       You may convey a work based on the Program,  or  the  modifications  to
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       b)  The  work  must carry prominent notices stating that it is released
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       c)  You must license the entire work, as a whole, under this License to
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           therefore apply, along with any  applicable  section  7  additional
           terms,  to  the whole of the work, and all its parts, regardless of
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       d)  If the work has interactive  user  interfaces,  each  must  display
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       A  compilation  of  a  covered work with other separate and independent
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       or on a volume of a  storage  or  distribution  medium,  is  called  an
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       to limit the access or legal rights of the compilation's  users  beyond
       what  the  individual  works permit.  Inclusion of a covered work in an
       aggregate does not cause this License to apply to the  other  parts  of
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       6. Conveying Non-Source Forms.

       You  may  convey  a covered work in object code form under the terms of
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       a)  Convey the object code in,  or  embodied  in,  a  physical  product
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           responding Source fixed on a durable  physical  medium  customarily
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       b)  Convey  the  object  code  in,  or  embodied in, a physical product
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           ten  offer, valid for at least three years and valid for as long as
           you offer spare parts or customer support for that  product  model,
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           is  covered by this License, on a durable physical medium customar-
           ily used for software interchange, for a price no  more  than  your
           reasonable  cost of physically performing this conveying of source,
           or (2) access to copy  the  Corresponding  Source  from  a  network
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       c)  Convey  individual  copies  of  the  object code with a copy of the
           written offer to provide the Corresponding Source.   This  alterna-
           tive  is allowed only occasionally and noncommercially, and only if
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       d)  Convey  the  object code by offering access from a designated place
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           sponding  Source  in the same way through the same place at no fur-
           ther charge.  You need not require recipients to  copy  the  Corre-
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       e)  Convey the object code using  peer-to-peer  transmission,  provided
           you  inform  other  peers  where  the object code and Corresponding
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           charge under subsection 6d.

       A  separable  portion of the object code, whose source code is excluded
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       A  "User  Product"  is either (1) a "consumer product", which means any
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       If you convey an object code work under this section in,  or  with,  or
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       The  requirement to provide Installation Information does not include a
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       Corresponding  Source  conveyed, and Installation Information provided,
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       mented  (and  with  an implementation available to the public in source
       code form), and must require no special password or key for  unpacking,
       reading or copying.

       7. Additional Terms.

       "Additional  permissions"  are  terms that supplement the terms of this
       License by making exceptions from one or more of its conditions.  Addi-
       tional  permissions  that are applicable to the entire Program shall be
       treated as though they were included in this  License,  to  the  extent
       that  they  are  valid under applicable law.  If additional permissions
       apply only to part of the Program, that part  may  be  used  separately
       under  those  permissions,  but  the entire Program remains governed by
       this License without regard to the additional permissions.

       When you convey a copy of a covered work, you may at your option remove
       any  additional  permissions  from  that  copy, or from any part of it.
       (Additional permissions may be written to require their own removal  in
       certain cases when you modify the work.)  You may place additional per-
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       have or can give appropriate copyright permission.

       Notwithstanding  any  other provision of this License, for material you
       add to a covered work, you may (if authorized by the copyright  holders
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       a)  Disclaiming  warranty  or  limiting  liability differently from the
           terms of sections 15 and 16 of this License; or

       b)  Requiring preservation of specified  reasonable  legal  notices  or
           author  attributions  in  that material or in the Appropriate Legal
           Notices displayed by works containing it; or

       c)  Prohibiting misrepresentation of the origin of  that  material,  or
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       d)  Limiting the use for publicity purposes of names  of  licensors  or
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       e)  Declining to grant rights under trademark law for use of some trade
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       f)  Requiring indemnification of licensors and authors of that material
           by  anyone  who  conveys  the material (or modified versions of it)
           with contractual assumptions of liability to the recipient, for any
           liability  that  these  contractual  assumptions directly impose on
           those licensors and authors.

       All other  non-permissive  additional  terms  are  considered  "further
       restrictions"  within the meaning of section 10.  If the Program as you
       received it, or any part of it, contains a notice stating  that  it  is
       governed  by  this License along with a term that is a further restric-
       tion, you may remove that term.  If a license document contains a  fur-
       ther  restriction  but  permits  relicensing  or  conveying  under this
       License, you may add to a covered work material governed by  the  terms
       of  that  license  document, provided that the further restriction does
       not survive such relicensing or conveying.

       If you add terms to a covered work in accord  with  this  section,  you
       must place, in the relevant source files, a statement of the additional
       terms that apply to those files, or a notice indicating where  to  find
       the applicable terms.

       Additional  terms,  permissive  or non-permissive, may be stated in the
       form of a separately written license,  or  stated  as  exceptions;  the
       above requirements apply either way.

       8. Termination.

       You may not propagate or modify a covered work except as expressly pro-
       vided under this License.  Any attempt otherwise to propagate or modify
       it  is  void,  and  will automatically terminate your rights under this
       License (including any patent licenses granted under  the  third  para-
       graph of section 11).

       However,  if you cease all violation of this License, then your license
       from a particular copyright holder  is  reinstated  (a)  provisionally,
       unless and until the copyright holder explicitly and finally terminates
       your license, and (b) permanently, if the  copyright  holder  fails  to
       notify  you  of the violation by some reasonable means prior to 60 days
       after the cessation.

       Moreover, your license from a particular copyright holder is reinstated
       permanently  if  the  copyright holder notifies you of the violation by
       some reasonable means, this is the first time you have received  notice
       of violation of this License (for any work) from that copyright holder,
       and you cure the violation prior to 30 days after your receipt  of  the
       notice.

       Termination  of  your  rights under this section does not terminate the
       licenses of parties who have received copies or rights from  you  under
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       reinstated, you do not qualify to receive new  licenses  for  the  same
       material under section 10.

       9. Acceptance Not Required for Having Copies.

       You  are not required to accept this License in order to receive or run
       a copy of the Program.  Ancillary propagation of a covered work  occur-
       ring  solely  as  a  consequence  of using peer-to-peer transmission to
       receive a copy likewise does not require acceptance.  However,  nothing
       other  than  this  License grants you permission to propagate or modify
       any covered work.  These actions  infringe  copyright  if  you  do  not
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       work, you indicate your acceptance of this License to do so.

       10. Automatic Licensing of Downstream Recipients.

       Each time you  convey  a  covered  work,  the  recipient  automatically
       receives  a  license  from  the  original licensors, to run, modify and
       propagate that work, subject to this License.  You are not  responsible
       for enforcing compliance by third parties with this License.

       An  "entity  transaction"  is  a transaction transferring control of an
       organization, or substantially all assets of  one,  or  subdividing  an
       organization,  or  merging  organizations.  If propagation of a covered
       work results from an entity transaction, each party to that transaction
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       previous  paragraph,  plus  a  right to possession of the Corresponding
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       has it or can get it with reasonable efforts.

       You  may  not  impose  any  further restrictions on the exercise of the
       rights granted or affirmed under this License.  For  example,  you  may
       not  impose  a  license  fee,  royalty, or other charge for exercise of
       rights granted under this License, and you may not initiate  litigation
       (including  a  cross-claim  or counterclaim in a lawsuit) alleging that
       any patent claim is infringed by making, using, selling,  offering  for
       sale, or importing the Program or any portion of it.

       11. Patents.

       A  "contributor"  is  a  copyright holder who authorizes use under this
       License of the Program or a work on which the Program  is  based.   The
       work thus licensed is called the contributor's "contributor version".

       A  contributor's  "essential patent claims" are all patent claims owned
       or controlled by the contributor, whether already acquired or hereafter
       acquired,  that  would  be  infringed by some manner, permitted by this
       License, of making, using, or selling its contributor version,  but  do
       not  include  claims  that  would be infringed only as a consequence of
       further modification of the contributor version.  For purposes of  this
       definition, "control" includes the right to grant patent sublicenses in
       a manner consistent with the requirements of this License.

       Each contributor grants you a  non-exclusive,  worldwide,  royalty-free
       patent  license  under  the  contributor's  essential patent claims, to
       make, use, sell, offer for sale, import and otherwise run,  modify  and
       propagate the contents of its contributor version.

       In  the  following  three paragraphs, a "patent license" is any express
       agreement or commitment, however denominated, not to enforce  a  patent
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       sue for patent infringement).  To "grant" such a patent  license  to  a
       party  means  to  make such an agreement or commitment not to enforce a
       patent against the party.

       If you convey a covered work, knowingly relying on  a  patent  license,
       and the Corresponding Source of the work is not available for anyone to
       copy, free of charge and under the terms of  this  License,  through  a
       publicly  available  network  server or other readily accessible means,
       then you must either (1) cause the Corresponding Source to be so avail-
       able,  or  (2) arrange to deprive yourself of the benefit of the patent
       license for this particular work, or (3) arrange, in a  manner  consis-
       tent  with  the  requirements  of  this  License,  to extend the patent
       license to downstream recipients.  "Knowingly relying" means  you  have
       actual  knowledge  that, but for the patent license, your conveying the
       covered work in a country, or your recipient's use of the covered  work
       in  a  country, would infringe one or more identifiable patents in that
       country that you have reason to believe are valid.

       If, pursuant to or in connection with a single transaction or  arrange-
       ment,  you  convey,  or propagate by procuring conveyance of, a covered
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       covered  work  authorizing  them  to use, propagate, modify or convey a
       specific copy of the covered work, then the patent license you grant is
       automatically  extended to all recipients of the covered work and works
       based on it.

       A patent license is "discriminatory" if it does not include within  the
       scope  of its coverage, prohibits the exercise of, or is conditioned on
       the non-exercise of one or more of the  rights  that  are  specifically
       granted  under  this License.  You may not convey a covered work if you
       are a party to an arrangement with a third party that is in  the  busi-
       ness  of  distributing  software,  under  which you make payment to the
       third party based on the extent of your activity of conveying the work,
       and under which the third party grants, to any of the parties who would
       receive the covered work from you, a discriminatory patent license  (a)
       in  connection  with  copies  of  the  covered work conveyed by you (or
       copies made from those copies), or (b) primarily for and in  connection
       with  specific  products or compilations that contain the covered work,
       unless you entered into that arrangement, or that  patent  license  was
       granted, prior to 28 March 2007.

       Nothing in this License shall be construed as excluding or limiting any
       implied license or other defenses to infringement that may otherwise be
       available to you under applicable patent law.

       12. No Surrender of Others' Freedom.

       If  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 convey a
       covered work so as to satisfy  simultaneously  your  obligations  under
       this License and any other pertinent obligations, then as a consequence
       you may not convey it at all.  For example, if you agree to terms  that
       obligate  you  to collect a royalty for further conveying from those to
       whom you convey the Program, the only way you could satisfy both  those
       terms  and this License would be to refrain entirely from conveying the
       Program.

       13. Use with the GNU Affero General Public License.

       Notwithstanding any other provision of this License, you  have  permis-
       sion  to  link  or  combine any covered work with a work licensed under
       version 3 of the GNU Affero General Public License into a  single  com-
       bined  work,  and  to  convey  the  resulting  work.  The terms of this
       License will continue to apply to the part which is the  covered  work,
       but  the special requirements of the GNU Affero General Public License,
       section 13, concerning interaction through a network will apply to  the
       combination as such.

       14. Revised Versions of this License.

       The Free Software Foundation may publish revised and/or new versions of
       the GNU 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  that  a  certain  numbered version of the GNU General Public
       License "or any later version" applies to it, you have  the  option  of
       following  the  terms and conditions either of that numbered version or
       of any later version published by the Free Software Foundation.  If the
       Program  does  not  specify  a version number of the GNU General Public
       License, you may choose any version ever published by the Free Software
       Foundation.

       If  the Program specifies that a proxy can decide which future versions
       of the GNU General Public License can  be  used,  that  proxy's  public
       statement  of  acceptance  of  a  version permanently authorizes you to
       choose that version for the Program.

       Later license versions may give you  additional  or  different  permis-
       sions.  However, no additional obligations are imposed on any author or
       copyright holder as a result of your choosing to follow  a  later  ver-
       sion.

       15. Disclaimer of Warranty.

       THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLI-
       CABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLD-
       ERS  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 PARTIC-
       ULAR 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.

       16. Limitation of Liability.

       IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO  IN  WRITING
       WILL  ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CON-
       VEYS 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  OPER-
       ATE  WITH  ANY  OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS
       BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

       17. Interpretation of Sections 15 and 16.

       If the disclaimer of warranty  and  limitation  of  liability  provided
       above  cannot  be  given  local  legal effect according to their terms,
       reviewing courts shall apply local law that most  closely  approximates
       an  absolute  waiver of all civil liability in connection with the Pro-
       gram, unless a warranty or assumption of liability accompanies  a  copy
       of the Program in return for a fee.

                             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 state
       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  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 does terminal interaction, make it output a short notice
       like this when it starts in an interactive mode:

           <program>  Copyright (C) <year>  <name of author>
           This program 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, your program's
       commands might be different; for a GUI  interface,  you  would  use  an
       "about box".

       You  should  also  get  your  employer (if you work as a programmer) or
       school, if any, to sign a "copyright disclaimer" for  the  program,  if
       necessary.   For  more information on this, and how to apply and follow
       the GNU GPL, see <http://www.gnu.org/licenses/>.

       The GNU General Public License does not permit incorporating your  pro-
       gram  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.  But  first,
       please read <http://www.gnu.org/philosophy/why-not-lgpl.html>.



GNU                                   GPL                               GPL(1)
