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.  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.                                NO WARRANTY 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.                      END OF TERMS AND CONDITIONSHow to Apply These Terms to Your New Programs=============================================   If you develop a new program, and you want it to be of the greatestpossible use to the public, the best way to achieve this is to make itfree software which everyone can redistribute and change under theseterms.   To do so, attach the following notices to the program.  It is safestto attach them to the start of each source file to most effectivelyconvey the exclusion of warranty; and each file should have at leastthe "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 2 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     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 papermail.   If the program is interactive, make it output a short notice likethis when it starts in an interactive mode:     Gnomovision version 69, Copyright (C) 19YY 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 theappropriate parts of the General Public License.  Of course, thecommands you use may be called something other than `show w' and `showc'; they could even be mouse-clicks or menu items--whatever suits yourprogram.   You should also get your employer (if you work as a programmer) oryour 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 yourprogram into proprietary programs.  If your program is a subroutinelibrary, you may consider it more useful to permit linking proprietaryapplications with the library.  If this is what you want to do, use theGNU Library General Public License instead of this License.