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		    GNU GENERAL PUBLIC LICENSE
		       Version 2, June 1991

 Copyright
(C) 1989, 1991 Free Software Foundation, Inc.,
 51 Franklin Street, Fifth
Floor, Boston, MA 02110-1301 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 Lesser 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

	    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) <year>  <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.,
    51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 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) year 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 Lesser General
Public License instead of this License.