			GNU GENERAL PUBLIC LICENSE
			    Version 2, June 1991

	Copyright (C) 1989, 1991 Free Software Foundation, Inc. 675
	Mass Ave, Cambridge, MA 02139, 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 modify 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.

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

	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.
	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 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 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 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., 675 Mass Ave, Cambridge, MA
	02139, 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) 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
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.
