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<h4 class="subsection">23.3.1 Guile Introduction</h4>

<p>Guile is an implementation of the Scheme programming language
and is the GNU project's official extension language.

   <p>Guile support in <span class="sc">gdb</span> follows the Python support in <span class="sc">gdb</span>
reasonably closely, so concepts there should carry over. 
However, some things are done differently where it makes sense.

   <p><span class="sc">gdb</span> requires Guile version 2.0 or greater. 
Older versions are not supported.

   <p><a name="index-guile-scripts-directory-2449"></a>Guile scripts used by <span class="sc">gdb</span> should be installed in
<samp><var>data-directory</var><span class="file">/guile</span></samp>, where <var>data-directory</var> is
the data directory as determined at <span class="sc">gdb</span> startup (see <a href="Data-Files.html#Data-Files">Data Files</a>). 
This directory, known as the <dfn>guile directory</dfn>,
is automatically added to the Guile Search Path in order to allow
the Guile interpreter to locate all scripts installed at this location.

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