rlm@326:                     GNU GENERAL PUBLIC LICENSE
rlm@326:                        Version 2, June 1991
rlm@326: 
rlm@326:  Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
rlm@326:  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
rlm@326:  Everyone is permitted to copy and distribute verbatim copies
rlm@326:  of this license document, but changing it is not allowed.
rlm@326: 
rlm@326:                             Preamble
rlm@326: 
rlm@326:   The licenses for most software are designed to take away your
rlm@326: freedom to share and change it.  By contrast, the GNU General Public
rlm@326: License is intended to guarantee your freedom to share and change free
rlm@326: software--to make sure the software is free for all its users.  This
rlm@326: General Public License applies to most of the Free Software
rlm@326: Foundation's software and to any other program whose authors commit to
rlm@326: using it.  (Some other Free Software Foundation software is covered by
rlm@326: the GNU Lesser General Public License instead.)  You can apply it to
rlm@326: your programs, too.
rlm@326: 
rlm@326:   When we speak of free software, we are referring to freedom, not
rlm@326: price.  Our General Public Licenses are designed to make sure that you
rlm@326: have the freedom to distribute copies of free software (and charge for
rlm@326: this service if you wish), that you receive source code or can get it
rlm@326: if you want it, that you can change the software or use pieces of it
rlm@326: in new free programs; and that you know you can do these things.
rlm@326: 
rlm@326:   To protect your rights, we need to make restrictions that forbid
rlm@326: anyone to deny you these rights or to ask you to surrender the rights.
rlm@326: These restrictions translate to certain responsibilities for you if you
rlm@326: distribute copies of the software, or if you modify it.
rlm@326: 
rlm@326:   For example, if you distribute copies of such a program, whether
rlm@326: gratis or for a fee, you must give the recipients all the rights that
rlm@326: you have.  You must make sure that they, too, receive or can get the
rlm@326: source code.  And you must show them these terms so they know their
rlm@326: rights.
rlm@326: 
rlm@326:   We protect your rights with two steps: (1) copyright the software, and
rlm@326: (2) offer you this license which gives you legal permission to copy,
rlm@326: distribute and/or modify the software.
rlm@326: 
rlm@326:   Also, for each author's protection and ours, we want to make certain
rlm@326: that everyone understands that there is no warranty for this free
rlm@326: software.  If the software is modified by someone else and passed on, we
rlm@326: want its recipients to know that what they have is not the original, so
rlm@326: that any problems introduced by others will not reflect on the original
rlm@326: authors' reputations.
rlm@326: 
rlm@326:   Finally, any free program is threatened constantly by software
rlm@326: patents.  We wish to avoid the danger that redistributors of a free
rlm@326: program will individually obtain patent licenses, in effect making the
rlm@326: program proprietary.  To prevent this, we have made it clear that any
rlm@326: patent must be licensed for everyone's free use or not licensed at all.
rlm@326: 
rlm@326:   The precise terms and conditions for copying, distribution and
rlm@326: modification follow.
rlm@326: 
rlm@326:                     GNU GENERAL PUBLIC LICENSE
rlm@326:    TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
rlm@326: 
rlm@326:   0. This License applies to any program or other work which contains
rlm@326: a notice placed by the copyright holder saying it may be distributed
rlm@326: under the terms of this General Public License.  The "Program", below,
rlm@326: refers to any such program or work, and a "work based on the Program"
rlm@326: means either the Program or any derivative work under copyright law:
rlm@326: that is to say, a work containing the Program or a portion of it,
rlm@326: either verbatim or with modifications and/or translated into another
rlm@326: language.  (Hereinafter, translation is included without limitation in
rlm@326: the term "modification".)  Each licensee is addressed as "you".
rlm@326: 
rlm@326: Activities other than copying, distribution and modification are not
rlm@326: covered by this License; they are outside its scope.  The act of
rlm@326: running the Program is not restricted, and the output from the Program
rlm@326: is covered only if its contents constitute a work based on the
rlm@326: Program (independent of having been made by running the Program).
rlm@326: Whether that is true depends on what the Program does.
rlm@326: 
rlm@326:   1. You may copy and distribute verbatim copies of the Program's
rlm@326: source code as you receive it, in any medium, provided that you
rlm@326: conspicuously and appropriately publish on each copy an appropriate
rlm@326: copyright notice and disclaimer of warranty; keep intact all the
rlm@326: notices that refer to this License and to the absence of any warranty;
rlm@326: and give any other recipients of the Program a copy of this License
rlm@326: along with the Program.
rlm@326: 
rlm@326: You may charge a fee for the physical act of transferring a copy, and
rlm@326: you may at your option offer warranty protection in exchange for a fee.
rlm@326: 
rlm@326:   2. You may modify your copy or copies of the Program or any portion
rlm@326: of it, thus forming a work based on the Program, and copy and
rlm@326: distribute such modifications or work under the terms of Section 1
rlm@326: above, provided that you also meet all of these conditions:
rlm@326: 
rlm@326:     a) You must cause the modified files to carry prominent notices
rlm@326:     stating that you changed the files and the date of any change.
rlm@326: 
rlm@326:     b) You must cause any work that you distribute or publish, that in
rlm@326:     whole or in part contains or is derived from the Program or any
rlm@326:     part thereof, to be licensed as a whole at no charge to all third
rlm@326:     parties under the terms of this License.
rlm@326: 
rlm@326:     c) If the modified program normally reads commands interactively
rlm@326:     when run, you must cause it, when started running for such
rlm@326:     interactive use in the most ordinary way, to print or display an
rlm@326:     announcement including an appropriate copyright notice and a
rlm@326:     notice that there is no warranty (or else, saying that you provide
rlm@326:     a warranty) and that users may redistribute the program under
rlm@326:     these conditions, and telling the user how to view a copy of this
rlm@326:     License.  (Exception: if the Program itself is interactive but
rlm@326:     does not normally print such an announcement, your work based on
rlm@326:     the Program is not required to print an announcement.)
rlm@326: 
rlm@326: These requirements apply to the modified work as a whole.  If
rlm@326: identifiable sections of that work are not derived from the Program,
rlm@326: and can be reasonably considered independent and separate works in
rlm@326: themselves, then this License, and its terms, do not apply to those
rlm@326: sections when you distribute them as separate works.  But when you
rlm@326: distribute the same sections as part of a whole which is a work based
rlm@326: on the Program, the distribution of the whole must be on the terms of
rlm@326: this License, whose permissions for other licensees extend to the
rlm@326: entire whole, and thus to each and every part regardless of who wrote it.
rlm@326: 
rlm@326: Thus, it is not the intent of this section to claim rights or contest
rlm@326: your rights to work written entirely by you; rather, the intent is to
rlm@326: exercise the right to control the distribution of derivative or
rlm@326: collective works based on the Program.
rlm@326: 
rlm@326: In addition, mere aggregation of another work not based on the Program
rlm@326: with the Program (or with a work based on the Program) on a volume of
rlm@326: a storage or distribution medium does not bring the other work under
rlm@326: the scope of this License.
rlm@326: 
rlm@326:   3. You may copy and distribute the Program (or a work based on it,
rlm@326: under Section 2) in object code or executable form under the terms of
rlm@326: Sections 1 and 2 above provided that you also do one of the following:
rlm@326: 
rlm@326:     a) Accompany it with the complete corresponding machine-readable
rlm@326:     source code, which must be distributed under the terms of Sections
rlm@326:     1 and 2 above on a medium customarily used for software interchange; or,
rlm@326: 
rlm@326:     b) Accompany it with a written offer, valid for at least three
rlm@326:     years, to give any third party, for a charge no more than your
rlm@326:     cost of physically performing source distribution, a complete
rlm@326:     machine-readable copy of the corresponding source code, to be
rlm@326:     distributed under the terms of Sections 1 and 2 above on a medium
rlm@326:     customarily used for software interchange; or,
rlm@326: 
rlm@326:     c) Accompany it with the information you received as to the offer
rlm@326:     to distribute corresponding source code.  (This alternative is
rlm@326:     allowed only for noncommercial distribution and only if you
rlm@326:     received the program in object code or executable form with such
rlm@326:     an offer, in accord with Subsection b above.)
rlm@326: 
rlm@326: The source code for a work means the preferred form of the work for
rlm@326: making modifications to it.  For an executable work, complete source
rlm@326: code means all the source code for all modules it contains, plus any
rlm@326: associated interface definition files, plus the scripts used to
rlm@326: control compilation and installation of the executable.  However, as a
rlm@326: special exception, the source code distributed need not include
rlm@326: anything that is normally distributed (in either source or binary
rlm@326: form) with the major components (compiler, kernel, and so on) of the
rlm@326: operating system on which the executable runs, unless that component
rlm@326: itself accompanies the executable.
rlm@326: 
rlm@326: If distribution of executable or object code is made by offering
rlm@326: access to copy from a designated place, then offering equivalent
rlm@326: access to copy the source code from the same place counts as
rlm@326: distribution of the source code, even though third parties are not
rlm@326: compelled to copy the source along with the object code.
rlm@326: 
rlm@326:   4. You may not copy, modify, sublicense, or distribute the Program
rlm@326: except as expressly provided under this License.  Any attempt
rlm@326: otherwise to copy, modify, sublicense or distribute the Program is
rlm@326: void, and will automatically terminate your rights under this License.
rlm@326: However, parties who have received copies, or rights, from you under
rlm@326: this License will not have their licenses terminated so long as such
rlm@326: parties remain in full compliance.
rlm@326: 
rlm@326:   5. You are not required to accept this License, since you have not
rlm@326: signed it.  However, nothing else grants you permission to modify or
rlm@326: distribute the Program or its derivative works.  These actions are
rlm@326: prohibited by law if you do not accept this License.  Therefore, by
rlm@326: modifying or distributing the Program (or any work based on the
rlm@326: Program), you indicate your acceptance of this License to do so, and
rlm@326: all its terms and conditions for copying, distributing or modifying
rlm@326: the Program or works based on it.
rlm@326: 
rlm@326:   6. Each time you redistribute the Program (or any work based on the
rlm@326: Program), the recipient automatically receives a license from the
rlm@326: original licensor to copy, distribute or modify the Program subject to
rlm@326: these terms and conditions.  You may not impose any further
rlm@326: restrictions on the recipients' exercise of the rights granted herein.
rlm@326: You are not responsible for enforcing compliance by third parties to
rlm@326: this License.
rlm@326: 
rlm@326:   7. If, as a consequence of a court judgment or allegation of patent
rlm@326: infringement or for any other reason (not limited to patent issues),
rlm@326: conditions are imposed on you (whether by court order, agreement or
rlm@326: otherwise) that contradict the conditions of this License, they do not
rlm@326: excuse you from the conditions of this License.  If you cannot
rlm@326: distribute so as to satisfy simultaneously your obligations under this
rlm@326: License and any other pertinent obligations, then as a consequence you
rlm@326: may not distribute the Program at all.  For example, if a patent
rlm@326: license would not permit royalty-free redistribution of the Program by
rlm@326: all those who receive copies directly or indirectly through you, then
rlm@326: the only way you could satisfy both it and this License would be to
rlm@326: refrain entirely from distribution of the Program.
rlm@326: 
rlm@326: If any portion of this section is held invalid or unenforceable under
rlm@326: any particular circumstance, the balance of the section is intended to
rlm@326: apply and the section as a whole is intended to apply in other
rlm@326: circumstances.
rlm@326: 
rlm@326: It is not the purpose of this section to induce you to infringe any
rlm@326: patents or other property right claims or to contest validity of any
rlm@326: such claims; this section has the sole purpose of protecting the
rlm@326: integrity of the free software distribution system, which is
rlm@326: implemented by public license practices.  Many people have made
rlm@326: generous contributions to the wide range of software distributed
rlm@326: through that system in reliance on consistent application of that
rlm@326: system; it is up to the author/donor to decide if he or she is willing
rlm@326: to distribute software through any other system and a licensee cannot
rlm@326: impose that choice.
rlm@326: 
rlm@326: This section is intended to make thoroughly clear what is believed to
rlm@326: be a consequence of the rest of this License.
rlm@326: 
rlm@326:   8. If the distribution and/or use of the Program is restricted in
rlm@326: certain countries either by patents or by copyrighted interfaces, the
rlm@326: original copyright holder who places the Program under this License
rlm@326: may add an explicit geographical distribution limitation excluding
rlm@326: those countries, so that distribution is permitted only in or among
rlm@326: countries not thus excluded.  In such case, this License incorporates
rlm@326: the limitation as if written in the body of this License.
rlm@326: 
rlm@326:   9. The Free Software Foundation may publish revised and/or new versions
rlm@326: of the General Public License from time to time.  Such new versions will
rlm@326: be similar in spirit to the present version, but may differ in detail to
rlm@326: address new problems or concerns.
rlm@326: 
rlm@326: Each version is given a distinguishing version number.  If the Program
rlm@326: specifies a version number of this License which applies to it and "any
rlm@326: later version", you have the option of following the terms and conditions
rlm@326: either of that version or of any later version published by the Free
rlm@326: Software Foundation.  If the Program does not specify a version number of
rlm@326: this License, you may choose any version ever published by the Free Software
rlm@326: Foundation.
rlm@326: 
rlm@326:   10. If you wish to incorporate parts of the Program into other free
rlm@326: programs whose distribution conditions are different, write to the author
rlm@326: to ask for permission.  For software which is copyrighted by the Free
rlm@326: Software Foundation, write to the Free Software Foundation; we sometimes
rlm@326: make exceptions for this.  Our decision will be guided by the two goals
rlm@326: of preserving the free status of all derivatives of our free software and
rlm@326: of promoting the sharing and reuse of software generally.
rlm@326: 
rlm@326:                             NO WARRANTY
rlm@326: 
rlm@326:   11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
rlm@326: FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
rlm@326: OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
rlm@326: PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
rlm@326: OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
rlm@326: MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
rlm@326: TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
rlm@326: PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
rlm@326: REPAIR OR CORRECTION.
rlm@326: 
rlm@326:   12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
rlm@326: WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
rlm@326: REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
rlm@326: INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
rlm@326: OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
rlm@326: TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
rlm@326: YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
rlm@326: PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
rlm@326: POSSIBILITY OF SUCH DAMAGES.
rlm@326: 
rlm@326:                      END OF TERMS AND CONDITIONS
rlm@326: 
rlm@326:             How to Apply These Terms to Your New Programs
rlm@326: 
rlm@326:   If you develop a new program, and you want it to be of the greatest
rlm@326: possible use to the public, the best way to achieve this is to make it
rlm@326: free software which everyone can redistribute and change under these terms.
rlm@326: 
rlm@326:   To do so, attach the following notices to the program.  It is safest
rlm@326: to attach them to the start of each source file to most effectively
rlm@326: convey the exclusion of warranty; and each file should have at least
rlm@326: the "copyright" line and a pointer to where the full notice is found.
rlm@326: 
rlm@326:     <one line to give the program's name and a brief idea of what it does.>
rlm@326:     Copyright (C) <year>  <name of author>
rlm@326: 
rlm@326:     This program is free software; you can redistribute it and/or modify
rlm@326:     it under the terms of the GNU General Public License as published by
rlm@326:     the Free Software Foundation; either version 2 of the License, or
rlm@326:     (at your option) any later version.
rlm@326: 
rlm@326:     This program is distributed in the hope that it will be useful,
rlm@326:     but WITHOUT ANY WARRANTY; without even the implied warranty of
rlm@326:     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
rlm@326:     GNU General Public License for more details.
rlm@326: 
rlm@326:     You should have received a copy of the GNU General Public License along
rlm@326:     with this program; if not, write to the Free Software Foundation, Inc.,
rlm@326:     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
rlm@326: 
rlm@326: Also add information on how to contact you by electronic and paper mail.
rlm@326: 
rlm@326: If the program is interactive, make it output a short notice like this
rlm@326: when it starts in an interactive mode:
rlm@326: 
rlm@326:     Gnomovision version 69, Copyright (C) year name of author
rlm@326:     Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
rlm@326:     This is free software, and you are welcome to redistribute it
rlm@326:     under certain conditions; type `show c' for details.
rlm@326: 
rlm@326: The hypothetical commands `show w' and `show c' should show the appropriate
rlm@326: parts of the General Public License.  Of course, the commands you use may
rlm@326: be called something other than `show w' and `show c'; they could even be
rlm@326: mouse-clicks or menu items--whatever suits your program.
rlm@326: 
rlm@326: You should also get your employer (if you work as a programmer) or your
rlm@326: school, if any, to sign a "copyright disclaimer" for the program, if
rlm@326: necessary.  Here is a sample; alter the names:
rlm@326: 
rlm@326:   Yoyodyne, Inc., hereby disclaims all copyright interest in the program
rlm@326:   `Gnomovision' (which makes passes at compilers) written by James Hacker.
rlm@326: 
rlm@326:   <signature of Ty Coon>, 1 April 1989
rlm@326:   Ty Coon, President of Vice
rlm@326: 
rlm@326: This General Public License does not permit incorporating your program into
rlm@326: proprietary programs.  If your program is a subroutine library, you may
rlm@326: consider it more useful to permit linking proprietary applications with the
rlm@326: library.  If this is what you want to do, use the GNU Lesser General
rlm@326: Public License instead of this License.