elete the source files and the descriptors.</td></tr>
<tr><td align="left" valign="top"><tt>make&nbsp;destroy</tt></td>
<td align=left>Delete the source files, the descriptors, and the spec files.</td></tr>
<tr><td align="left" valign="top"><tt>make&nbsp;custom</tt></td>
<td align=left>Create the source files for the extensions
listed in <tt>auto/custom.txt</tt>.<br/> See "Custom Code
Generation" below for more details.</td></tr>
</table>

<h3>Adding a New Extension</h3>

<p>
To add a new extension, create 