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<H1>GNU Lesser Public License</H1><TT><!-- Insert License text here -->
<P>Version 2.1, February 1999</P>
<BLOCKQUOTE>
<P>Copyright (C) 1991, 1999 Free Software Foundation, Inc.<BR>59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA<BR>Everyone is permitted to
copy and distribute verbatim copies<BR>of this license document, but
changing it is not allowed.</P>
<P>[This is the first released version of the Lesser GPL. It also
counts<BR>as the successor of the GNU Library Public License, version 2,
hence<BR>the version number 2.1.]</P></BLOCKQUOTE>
<H3>Preamble</H3>
<P>The licenses for most software are designed to take away your freedom
to share and change it. By contrast, the GNU General Public Licenses are
intended to guarantee your freedom to share and change free software--to
make sure the software is free for all its users. </P>
<P>This license, the Lesser General Public License, applies to some
specially designated software packages--typically libraries--of the Free
Software Foundation and other authors who decide to use it. You can use it
too, but we suggest you first think carefully about whether this license
or the ordinary General Public License is the better strategy to use in
any particular case, based on the explanations below. </P>
<P>When we speak of free software, we are referring to freedom of use, 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 and use pieces of it in new free
programs; and that you are informed that you can do these things.</P>
<P>To protect your rights, we need to make restrictions that forbid
distributors to deny you these rights or to ask you to surrender these
rights. These restrictions translate to certain responsibilities for you
if you distribute copies of the library or if you modify it. </P>
<P>For example, if you distribute copies of the library, whether gratis or
for a fee, you must give the recipients all the rights that we gave you.
You must make sure that they, too, receive or can get the source code. If
you link other code with the library, you must provide complete object
files to the recipients, so that they can relink them with the library
after making changes to the library and recompiling it. And you must show
them these terms so they know their rights. </P>
<P>We protect your rights with a two-step method: (1) we copyright the
library, and (2) we offer you this license, which gives you legal
permission to copy, distribute and/or modify the library. </P>
<P>To protect each distributor, we want to make it very clear that there
is no warranty for the free library. Also, if the library is modified by
someone else and passed on, the recipients should know that what they have
is not the original version, so that the original author's reputation will
not be affected by problems that might be introduced by others. </P>
<P>Finally, software patents pose a constant threat to the existence of
any free program. We wish to make sure that a company cannot effectively
restrict the users of a free program by obtaining a restrictive license
from a patent holder. Therefore, we insist that any patent license
obtained for a version of the library must be consistent with the full
freedom of use specified in this license. </P>
<P>Most GNU software, including some libraries, is covered by the ordinary
GNU General Public License. This license, the GNU Lesser General Public
License, applies to certain designated libraries, and is quite different
from the ordinary General Public License. We use this license for certain
libraries in order to permit linking those libraries into non-free
programs. </P>
<P>When a program is linked with a library, whether statically or using a
shared library, the combination of the two is legally speaking a combined
work, a derivative of the original library. The ordinary General Public
License therefore permits such linking only if the entire combination fits
its criteria of freedom. The Lesser General Public License permits more
lax criteria for linking other code with the library. </P>
<P>We call this license the "Lesser" General Public License because it
does Less to protect the user's freedom than the ordinary General Public
License. It also provides other free software developers Less of an
advantage over competing non-free programs. These disadvantages are the
reason we use the ordinary General Public License for many libraries.
However, the Lesser license provides advantages in certain special
circumstances. </P>
<P>For example, on rare occasions, there may be a special need to
encourage the widest possible use of a certain library, so that it becomes
a de-facto standard. To achieve this, non-free programs must be allowed to
use the library. A more frequent case is that a free library does the same
job as widely used non-free libraries. In this case, there is little to
gain by limiting the free library to free software only, so we use the
Lesser General Public License. </P>
<P>In other cases, permission to use a particular library in non-free
programs enables a greater number of people to use a large body of free
software. For example, permission to use the GNU C Library in non-free
programs enables many more people to use the whole GNU operating system,
as well as its variant, the GNU/Linux operating system. </P>
<P>Although the Lesser General Public License is Less protective of the
users' freedom, it does ensure that the user of a program that is linked
with the Library has the freedom and the wherewithal to run that program
using a modified version of the Library. </P>
<P>The precise terms and conditions for copying, distribution and
modification follow. Pay close attention to the difference between a "work
based on the library" and a "work that uses the library". The former
contains code derived from the library, whereas the latter must be
combined with the library in order to run. </P>
<H3>TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION</H3>
<P><STRONG>0.</STRONG> This License Agreement applies to any software
library or other program which contains a notice placed by the copyright
holder or other authorized party saying it may be distributed under the
terms of this Lesser General Public License (also called "this License").
Each licensee is addressed as "you".</P>
<P>A "library" means a collection of software functions and/or data
prepared so as to be conveniently linked with application programs (which
use some of those functions and data) to form executables. </P>
<P>The "Library", below, refers to any such software library or work which
has been distributed under these terms. A "work based on the Library"
means either the Library or any derivative work under copyright law: that
is to say, a work containing the Library or a portion of it, either
verbatim or with modifications and/or translated straightforwardly into
another language. (Hereinafter, translation is included without limitation
in the term "modification".) </P>
<P>"Source code" for a work means the preferred form of the work for
making modifications to it. For a library, 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 library.</P>
<P>Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope. The act of running a
program using the Library is not restricted, and output from such a
program is covered only if its contents constitute a work based on the
Library (independent of the use of the Library in a tool for writing it).
Whether that is true depends on what the Library does and what the program
that uses the Library does. </P>
<P><STRONG>1.</STRONG> You may copy and distribute verbatim copies of the
Library's complete 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 distribute a copy of this License along with the Library. </P>
<P>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.
</P>
<P><STRONG>2.</STRONG> You may modify your copy or copies of the Library
or any portion of it, thus forming a work based on the Library, and copy
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