perlgpl


SYNOPSIS
        You can refer to this document in Pod via "L<perlgpl>"
        Or you can see this document by entering "perldoc perlgpl"

DESCRIPTION
       Perl is free software; you can redistribute it and/or modify it under
       the terms of either:

               a) the GNU General Public License as published by the Free
               Software Foundation; either version 1, or (at your option) any
               later version, or

               b) the "Artistic License" which comes with this Kit.

       This is the "GNU General Public License, version 1".  It's here so that
       modules, programs, etc., that want to declare this as their
       distribution license can link to it.

       For the Perl Artistic License, see perlartistic.

GNU GENERAL PUBLIC LICENSE
                           GNU GENERAL PUBLIC LICENSE
                            Version 1, February 1989

         Copyright (C) 1989 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 license agreements of most software companies try to keep users
        at the mercy of those companies.  By contrast, our 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.  The
        General Public License applies to the Free Software Foundation's
        software and to any other program whose authors commit to using it.
        You can use it for your programs, too.

          When we speak of free software, we are referring to freedom, not
        price.  Specifically, the General Public License is designed to make
        sure that you have the freedom to give away or sell copies of free
        software, 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 a such a program, whether
        gratis or for a fee, you must give the recipients all the rights that
        authors' reputations.

          The precise terms and conditions for copying, distribution and
        modification follow.

                           GNU GENERAL PUBLIC LICENSE
           TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

          0. This License Agreement 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 work containing the
        Program or a portion of it, either verbatim or with modifications.  Each
        licensee is addressed as "you".

          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
        General Public License and to the absence of any warranty; and give any
        other recipients of the Program a copy of this General Public License
        along with the Program.  You may charge a fee for the physical act of
        transferring a copy.

          2. You may modify your copy or copies of the Program or any portion of
        it, and copy and distribute such modifications under the terms of Paragraph
        1 above, provided that you also do the following:

            a) cause the modified files to carry prominent notices stating that
            you changed the files and the date of any change; and

            b) cause the whole of any work that you distribute or publish, that
            in whole or in part contains the Program or any part thereof, either
            with or without modifications, to be licensed at no charge to all
            third parties under the terms of this General Public License (except
            that you may choose to grant warranty protection to some or all
            third parties, at your option).

            c) If the modified program normally reads commands interactively when
            run, you must cause it, when started running for such interactive use
            in the simplest and most usual 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 General
            Public License.

            d) 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.

        Mere aggregation of another independent work with the Program (or its
        derivative) on a volume of a storage or distribution medium does not bring
            for the cost of distribution) a complete machine-readable copy of the
            corresponding source code, to be distributed under the terms of
            Paragraphs 1 and 2 above; or,

            c) accompany it with the information you received as to where the
            corresponding source code may be obtained.  (This alternative is
            allowed only for noncommercial distribution and only if you
            received the program in object code or executable form alone.)

        Source code for a work means the preferred form of the work for making
        modifications to it.  For an executable file, complete source code means
        all the source code for all modules it contains; but, as a special
        exception, it need not include source code for modules which are standard
        libraries that accompany the operating system on which the executable
        file runs, or for standard header files or definitions files that
        accompany that operating system.

          4. You may not copy, modify, sublicense, distribute or transfer the
        Program except as expressly provided under this General Public License.
        Any attempt otherwise to copy, modify, sublicense, distribute or transfer
        the Program is void, and will automatically terminate your rights to use
        the Program under this License.  However, parties who have received
        copies, or rights to use copies, from you under this General Public
        License will not have their licenses terminated so long as such parties
        remain in full compliance.

          5. By copying, distributing or modifying 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.

          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.

          7. 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 the 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
        the license, you may choose any version ever published by the Free Software
        Foundation.

          8. 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
        PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
        REPAIR OR CORRECTION.

          10. 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.

                            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 humanity, 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 modify
            it under the terms of the GNU General Public License as published by
            the Free Software Foundation; either version 1, 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
            MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  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) 19xx 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.

          at assemblers) written by James Hacker.

          <signature of Ty Coon>, 1 April 1989
          Ty Coon, President of Vice

        That's all there is to it!



perl v5.14.2                      2010-12-30                        PERLGPL(1)
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