File:  [gforth] / gforth / doc / gpl.texi
Revision 1.1: download - view: text, annotated - select for diffs
Sat Mar 1 22:39:16 2003 UTC (18 years, 9 months ago) by anton
Branches: MAIN
CVS tags: v0-6-2, v0-6-1, v0-6-0, HEAD
documentation changes (mainly reorganized stuff)

    1: @ignore
    2: @c Set file name and title for man page.
    3: @setfilename gpl
    4: @settitle GNU General Public License
    5: @c man begin SEEALSO
    6: gfdl(7), fsf-funding(7).
    7: @c man end
    8: @c man begin COPYRIGHT
    9: Copyright @copyright{} 1989, 1991 Free Software Foundation, Inc.
   10: 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
   11: 
   12: Everyone is permitted to copy and distribute verbatim copies
   13: of this license document, but changing it is not allowed.
   14: @c man end
   15: @end ignore
   16: @node Copying
   17: @c man begin DESCRIPTION
   18: @appendixsec GNU GENERAL PUBLIC LICENSE
   19: @center Version 2, June 1991
   20: 
   21: @display
   22: Copyright @copyright{} 1989, 1991 Free Software Foundation, Inc.
   23: 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
   24: 
   25: Everyone is permitted to copy and distribute verbatim copies
   26: of this license document, but changing it is not allowed.
   27: @end display
   28: 
   29: @unnumberedsec Preamble
   30: 
   31:   The licenses for most software are designed to take away your
   32: freedom to share and change it.  By contrast, the GNU General Public
   33: License is intended to guarantee your freedom to share and change free
   34: software---to make sure the software is free for all its users.  This
   35: General Public License applies to most of the Free Software
   36: Foundation's software and to any other program whose authors commit to
   37: using it.  (Some other Free Software Foundation software is covered by
   38: the GNU Library General Public License instead.)  You can apply it to
   39: your programs, too.
   40: 
   41:   When we speak of free software, we are referring to freedom, not
   42: price.  Our General Public Licenses are designed to make sure that you
   43: have the freedom to distribute copies of free software (and charge for
   44: this service if you wish), that you receive source code or can get it
   45: if you want it, that you can change the software or use pieces of it
   46: in new free programs; and that you know you can do these things.
   47: 
   48:   To protect your rights, we need to make restrictions that forbid
   49: anyone to deny you these rights or to ask you to surrender the rights.
   50: These restrictions translate to certain responsibilities for you if you
   51: distribute copies of the software, or if you modify it.
   52: 
   53:   For example, if you distribute copies of such a program, whether
   54: gratis or for a fee, you must give the recipients all the rights that
   55: you have.  You must make sure that they, too, receive or can get the
   56: source code.  And you must show them these terms so they know their
   57: rights.
   58: 
   59:   We protect your rights with two steps: (1) copyright the software, and
   60: (2) offer you this license which gives you legal permission to copy,
   61: distribute and/or modify the software.
   62: 
   63:   Also, for each author's protection and ours, we want to make certain
   64: that everyone understands that there is no warranty for this free
   65: software.  If the software is modified by someone else and passed on, we
   66: want its recipients to know that what they have is not the original, so
   67: that any problems introduced by others will not reflect on the original
   68: authors' reputations.
   69: 
   70:   Finally, any free program is threatened constantly by software
   71: patents.  We wish to avoid the danger that redistributors of a free
   72: program will individually obtain patent licenses, in effect making the
   73: program proprietary.  To prevent this, we have made it clear that any
   74: patent must be licensed for everyone's free use or not licensed at all.
   75: 
   76:   The precise terms and conditions for copying, distribution and
   77: modification follow.
   78: 
   79: @iftex
   80: @unnumberedsec TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
   81: @end iftex
   82: @ifnottex
   83: @center TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
   84: @end ifnottex
   85: 
   86: @enumerate 0
   87: @item
   88: This License applies to any program or other work which contains
   89: a notice placed by the copyright holder saying it may be distributed
   90: under the terms of this General Public License.  The ``Program'', below,
   91: refers to any such program or work, and a ``work based on the Program''
   92: means either the Program or any derivative work under copyright law:
   93: that is to say, a work containing the Program or a portion of it,
   94: either verbatim or with modifications and/or translated into another
   95: language.  (Hereinafter, translation is included without limitation in
   96: the term ``modification''.)  Each licensee is addressed as ``you''.
   97: 
   98: Activities other than copying, distribution and modification are not
   99: covered by this License; they are outside its scope.  The act of
  100: running the Program is not restricted, and the output from the Program
  101: is covered only if its contents constitute a work based on the
  102: Program (independent of having been made by running the Program).
  103: Whether that is true depends on what the Program does.
  104: 
  105: @item
  106: You may copy and distribute verbatim copies of the Program's
  107: source code as you receive it, in any medium, provided that you
  108: conspicuously and appropriately publish on each copy an appropriate
  109: copyright notice and disclaimer of warranty; keep intact all the
  110: notices that refer to this License and to the absence of any warranty;
  111: and give any other recipients of the Program a copy of this License
  112: along with the Program.
  113: 
  114: You may charge a fee for the physical act of transferring a copy, and
  115: you may at your option offer warranty protection in exchange for a fee.
  116: 
  117: @item
  118: You may modify your copy or copies of the Program or any portion
  119: of it, thus forming a work based on the Program, and copy and
  120: distribute such modifications or work under the terms of Section 1
  121: above, provided that you also meet all of these conditions:
  122: 
  123: @enumerate a
  124: @item
  125: You must cause the modified files to carry prominent notices
  126: stating that you changed the files and the date of any change.
  127: 
  128: @item
  129: You must cause any work that you distribute or publish, that in
  130: whole or in part contains or is derived from the Program or any
  131: part thereof, to be licensed as a whole at no charge to all third
  132: parties under the terms of this License.
  133: 
  134: @item
  135: If the modified program normally reads commands interactively
  136: when run, you must cause it, when started running for such
  137: interactive use in the most ordinary way, to print or display an
  138: announcement including an appropriate copyright notice and a
  139: notice that there is no warranty (or else, saying that you provide
  140: a warranty) and that users may redistribute the program under
  141: these conditions, and telling the user how to view a copy of this
  142: License.  (Exception: if the Program itself is interactive but
  143: does not normally print such an announcement, your work based on
  144: the Program is not required to print an announcement.)
  145: @end enumerate
  146: 
  147: These requirements apply to the modified work as a whole.  If
  148: identifiable sections of that work are not derived from the Program,
  149: and can be reasonably considered independent and separate works in
  150: themselves, then this License, and its terms, do not apply to those
  151: sections when you distribute them as separate works.  But when you
  152: distribute the same sections as part of a whole which is a work based
  153: on the Program, the distribution of the whole must be on the terms of
  154: this License, whose permissions for other licensees extend to the
  155: entire whole, and thus to each and every part regardless of who wrote it.
  156: 
  157: Thus, it is not the intent of this section to claim rights or contest
  158: your rights to work written entirely by you; rather, the intent is to
  159: exercise the right to control the distribution of derivative or
  160: collective works based on the Program.
  161: 
  162: In addition, mere aggregation of another work not based on the Program
  163: with the Program (or with a work based on the Program) on a volume of
  164: a storage or distribution medium does not bring the other work under
  165: the scope of this License.
  166: 
  167: @item
  168: You may copy and distribute the Program (or a work based on it,
  169: under Section 2) in object code or executable form under the terms of
  170: Sections 1 and 2 above provided that you also do one of the following:
  171: 
  172: @enumerate a
  173: @item
  174: Accompany it with the complete corresponding machine-readable
  175: source code, which must be distributed under the terms of Sections
  176: 1 and 2 above on a medium customarily used for software interchange; or,
  177: 
  178: @item
  179: Accompany it with a written offer, valid for at least three
  180: years, to give any third party, for a charge no more than your
  181: cost of physically performing source distribution, a complete
  182: machine-readable copy of the corresponding source code, to be
  183: distributed under the terms of Sections 1 and 2 above on a medium
  184: customarily used for software interchange; or,
  185: 
  186: @item
  187: Accompany it with the information you received as to the offer
  188: to distribute corresponding source code.  (This alternative is
  189: allowed only for noncommercial distribution and only if you
  190: received the program in object code or executable form with such
  191: an offer, in accord with Subsection b above.)
  192: @end enumerate
  193: 
  194: The source code for a work means the preferred form of the work for
  195: making modifications to it.  For an executable work, complete source
  196: code means all the source code for all modules it contains, plus any
  197: associated interface definition files, plus the scripts used to
  198: control compilation and installation of the executable.  However, as a
  199: special exception, the source code distributed need not include
  200: anything that is normally distributed (in either source or binary
  201: form) with the major components (compiler, kernel, and so on) of the
  202: operating system on which the executable runs, unless that component
  203: itself accompanies the executable.
  204: 
  205: If distribution of executable or object code is made by offering
  206: access to copy from a designated place, then offering equivalent
  207: access to copy the source code from the same place counts as
  208: distribution of the source code, even though third parties are not
  209: compelled to copy the source along with the object code.
  210: 
  211: @item
  212: You may not copy, modify, sublicense, or distribute the Program
  213: except as expressly provided under this License.  Any attempt
  214: otherwise to copy, modify, sublicense or distribute the Program is
  215: void, and will automatically terminate your rights under this License.
  216: However, parties who have received copies, or rights, from you under
  217: this License will not have their licenses terminated so long as such
  218: parties remain in full compliance.
  219: 
  220: @item
  221: You are not required to accept this License, since you have not
  222: signed it.  However, nothing else grants you permission to modify or
  223: distribute the Program or its derivative works.  These actions are
  224: prohibited by law if you do not accept this License.  Therefore, by
  225: modifying or distributing the Program (or any work based on the
  226: Program), you indicate your acceptance of this License to do so, and
  227: all its terms and conditions for copying, distributing or modifying
  228: the Program or works based on it.
  229: 
  230: @item
  231: Each time you redistribute the Program (or any work based on the
  232: Program), the recipient automatically receives a license from the
  233: original licensor to copy, distribute or modify the Program subject to
  234: these terms and conditions.  You may not impose any further
  235: restrictions on the recipients' exercise of the rights granted herein.
  236: You are not responsible for enforcing compliance by third parties to
  237: this License.
  238: 
  239: @item
  240: If, as a consequence of a court judgment or allegation of patent
  241: infringement or for any other reason (not limited to patent issues),
  242: conditions are imposed on you (whether by court order, agreement or
  243: otherwise) that contradict the conditions of this License, they do not
  244: excuse you from the conditions of this License.  If you cannot
  245: distribute so as to satisfy simultaneously your obligations under this
  246: License and any other pertinent obligations, then as a consequence you
  247: may not distribute the Program at all.  For example, if a patent
  248: license would not permit royalty-free redistribution of the Program by
  249: all those who receive copies directly or indirectly through you, then
  250: the only way you could satisfy both it and this License would be to
  251: refrain entirely from distribution of the Program.
  252: 
  253: If any portion of this section is held invalid or unenforceable under
  254: any particular circumstance, the balance of the section is intended to
  255: apply and the section as a whole is intended to apply in other
  256: circumstances.
  257: 
  258: It is not the purpose of this section to induce you to infringe any
  259: patents or other property right claims or to contest validity of any
  260: such claims; this section has the sole purpose of protecting the
  261: integrity of the free software distribution system, which is
  262: implemented by public license practices.  Many people have made
  263: generous contributions to the wide range of software distributed
  264: through that system in reliance on consistent application of that
  265: system; it is up to the author/donor to decide if he or she is willing
  266: to distribute software through any other system and a licensee cannot
  267: impose that choice.
  268: 
  269: This section is intended to make thoroughly clear what is believed to
  270: be a consequence of the rest of this License.
  271: 
  272: @item
  273: If the distribution and/or use of the Program is restricted in
  274: certain countries either by patents or by copyrighted interfaces, the
  275: original copyright holder who places the Program under this License
  276: may add an explicit geographical distribution limitation excluding
  277: those countries, so that distribution is permitted only in or among
  278: countries not thus excluded.  In such case, this License incorporates
  279: the limitation as if written in the body of this License.
  280: 
  281: @item
  282: The Free Software Foundation may publish revised and/or new versions
  283: of the General Public License from time to time.  Such new versions will
  284: be similar in spirit to the present version, but may differ in detail to
  285: address new problems or concerns.
  286: 
  287: Each version is given a distinguishing version number.  If the Program
  288: specifies a version number of this License which applies to it and ``any
  289: later version'', you have the option of following the terms and conditions
  290: either of that version or of any later version published by the Free
  291: Software Foundation.  If the Program does not specify a version number of
  292: this License, you may choose any version ever published by the Free Software
  293: Foundation.
  294: 
  295: @item
  296: If you wish to incorporate parts of the Program into other free
  297: programs whose distribution conditions are different, write to the author
  298: to ask for permission.  For software which is copyrighted by the Free
  299: Software Foundation, write to the Free Software Foundation; we sometimes
  300: make exceptions for this.  Our decision will be guided by the two goals
  301: of preserving the free status of all derivatives of our free software and
  302: of promoting the sharing and reuse of software generally.
  303: 
  304: @iftex
  305: @heading NO WARRANTY
  306: @end iftex
  307: @ifnottex
  308: @center NO WARRANTY
  309: @end ifnottex
  310: 
  311: @item
  312: BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
  313: FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
  314: OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
  315: PROVIDE THE PROGRAM ``AS IS'' WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
  316: OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  317: MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
  318: TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
  319: PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
  320: REPAIR OR CORRECTION.
  321: 
  322: @item
  323: IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
  324: WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
  325: REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
  326: INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
  327: OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
  328: TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
  329: YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
  330: PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
  331: POSSIBILITY OF SUCH DAMAGES.
  332: @end enumerate
  333: 
  334: @iftex
  335: @heading END OF TERMS AND CONDITIONS
  336: @end iftex
  337: @ifnottex
  338: @center END OF TERMS AND CONDITIONS
  339: @end ifnottex
  340: 
  341: @page
  342: @unnumberedsec How to Apply These Terms to Your New Programs
  343: 
  344:   If you develop a new program, and you want it to be of the greatest
  345: possible use to the public, the best way to achieve this is to make it
  346: free software which everyone can redistribute and change under these terms.
  347: 
  348:   To do so, attach the following notices to the program.  It is safest
  349: to attach them to the start of each source file to most effectively
  350: convey the exclusion of warranty; and each file should have at least
  351: the ``copyright'' line and a pointer to where the full notice is found.
  352: 
  353: @smallexample
  354: @var{one line to give the program's name and a brief idea of what it does.}
  355: Copyright (C) @var{year}  @var{name of author}
  356: 
  357: This program is free software; you can redistribute it and/or modify
  358: it under the terms of the GNU General Public License as published by
  359: the Free Software Foundation; either version 2 of the License, or
  360: (at your option) any later version.
  361: 
  362: This program is distributed in the hope that it will be useful,
  363: but WITHOUT ANY WARRANTY; without even the implied warranty of
  364: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  365: GNU General Public License for more details.
  366: 
  367: You should have received a copy of the GNU General Public License
  368: along with this program; if not, write to the Free Software
  369: Foundation, Inc., 59 Temple Place - Suite 330,
  370: Boston, MA 02111-1307, USA.
  371: @end smallexample
  372: 
  373: Also add information on how to contact you by electronic and paper mail.
  374: 
  375: If the program is interactive, make it output a short notice like this
  376: when it starts in an interactive mode:
  377: 
  378: @smallexample
  379: Gnomovision version 69, Copyright (C) @var{year} @var{name of author}
  380: Gnomovision comes with ABSOLUTELY NO WARRANTY; for details
  381: type `show w'.
  382: This is free software, and you are welcome to redistribute it
  383: under certain conditions; type `show c' for details.
  384: @end smallexample
  385: 
  386: The hypothetical commands @samp{show w} and @samp{show c} should show
  387: the appropriate parts of the General Public License.  Of course, the
  388: commands you use may be called something other than @samp{show w} and
  389: @samp{show c}; they could even be mouse-clicks or menu items---whatever
  390: suits your program.
  391: 
  392: You should also get your employer (if you work as a programmer) or your
  393: school, if any, to sign a ``copyright disclaimer'' for the program, if
  394: necessary.  Here is a sample; alter the names:
  395: 
  396: @smallexample
  397: Yoyodyne, Inc., hereby disclaims all copyright interest in the program
  398: `Gnomovision' (which makes passes at compilers) written by James Hacker.
  399: 
  400: @var{signature of Ty Coon}, 1 April 1989
  401: Ty Coon, President of Vice
  402: @end smallexample
  403: 
  404: This General Public License does not permit incorporating your program into
  405: proprietary programs.  If your program is a subroutine library, you may
  406: consider it more useful to permit linking proprietary applications with the
  407: library.  If this is what you want to do, use the GNU Library General
  408: Public License instead of this License.
  409: @c man end

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