\chapter{The GNU Library General Public License}\label{GNU-LGPL}

\centerline{GNU LIBRARY GENERAL PUBLIC LICENSE}
\centerline{Version 2, June 1991}

Copyright \copyright\ 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.

[This is the first released version of the library GPL\@.  It is
numbered 2 because it goes with version 2 of the ordinary GPL.]

\section*{Preamble}

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\section*{NO WARRANTY}

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\section*{How to Apply These Terms to Your New Libraries}

If you develop a new library, and you want it to be of the greatest
possible use to the public, we recommend making it free software that
everyone can redistribute and change.  You can do so by permitting
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of the ordinary General Public License).

To apply these terms, attach the following notices to the library.  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.

\begin{quote}
  {\em one line to give the library's name and a brief idea of what it does.}\\
  Copyright (C) {\em year} {\em name of author}\\
  
  This library is free software; you can redistribute it and/or modify
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  published by the Free Software Foundation; either version 2 of the
  License, or (at your option) any later version.
  
  This library is distributed in the hope that it will be useful, but
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  You should have received a copy of the GNU Library General Public
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\end{quote}

Also add information on how to contact you by electronic and paper
mail.

You should also get your employer (if you work as a programmer) or
your school, if any, to sign a ``copyright disclaimer'' for the
library, if necessary.  Here is a sample; alter the names:

\begin{quote}
  Yoyodyne, Inc., hereby disclaims all copyright interest in the
  library `Frob' (a library for tweaking knobs) written by James
  Random Hacker.
  

  {\em signature of Ty Coon}, 1 April 1990\\
  Ty Coon, President of Vice
\end{quote}

That's all there is to it!
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