 align=left>Delete the source files.</td></tr>
<tr><td align="left" valign="top"><tt>make&nbsp;clobber</tt></td>
<td align=left>Delete 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 