harbour-core/harbour/doc/en/gnulice.txt

/*
 * $Id$
 */

/*  $DOC$
 *  $TEMPLATE$
 *      Document
 *  $NAME$
 *      GNU License
 *  $CATEGORY$
 *      Document
 *  $SUBCATEGORY$
 *      License
 *  $ONELINER$
 *      Gnu License File Part 1
 *  $DESCRIPTION$
 *      GNU GENERAL PUBLIC LICENSE
 *      Version 2, June 1991
 *      Copyright (C) 1989, 1991 Free Software Foundation, Inc.
 *      59 Temple Place - Suite 330, Boston, MA  02111-1307, 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 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.
 *
 *      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.
 *
 *      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 vmodify 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 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.
 *
 *      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.
 *
 *      The precise terms and conditions for copying, distribution and
 *      modification follow.
 *
 *      <b>TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION</b>
 *
 *      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 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.
 *
 *      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 Program. 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
 *        stating 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
 *      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.
 *
 *      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 customarily 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
 *        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, 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.
 *
 *      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
 *      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.
 *
 *      6. 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.
 *
 *  $SEEALSO$
 *      GNU License..
 *  $END$
 */
 /*
 *  $DOC$
 *  $TEMPLATE$
 *     Document
 *  $NAME$
 *     GNU License..
 *  $CATEGORY$
 *     Document
 *  $SUBCATEGORY$
 *      License
 *  $ONELINER$
 *     Gnu License File Part 2
 *  $DESCRIPTION$
 *      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 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.
 *
 *      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.
 *
 *      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.
 *
 *      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
 *      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.
 *
 *      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 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.
 *
 *      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.
 *
 *      <b>NO WARRANTY</b>
 *
 *      11. 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.
 *
 *      12. 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.
 *
 *      <b>END OF TERMS AND CONDITIONS</b>
 *
 *      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 an idea of what it does.>
 *      Copyright (C) yyyy  <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 <b>WITHOUT ANY WARRANTY</b>; without even the implied warranty of
 *      <b>MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE</b>.  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.,
 *      59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 *      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) 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.
 *
 *      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.
 *
 *      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
 *      program `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 applications with the library. If this is what you want
 *      to do, use the GNU Library General Public License instead of this
 *      License.
 *
 *      FSF & GNU inquiries & questions to gnu@gnu.org.
 *      Copyright notice above.
 *
 *      Free Software Foundation, Inc.,
 *      59 Temple Place - Suite 330, Boston, MA 02111, USA
 *      Updated: 3 Jan 2000 rms
 *
 *  $SEEALSO$
 *      License,GNU License
 *  $END$
 */