 interpreter.
       </p><p>
        Only superusers can change this setting.  Although this setting
        can be changed within a session, such changes will not affect Tcl
        interpreters that have already been created.
       </p></dd><dt id="GUC-PLTCLU-START-PROC"><span class="term">
       <code class="varname">pltclu.start_proc</code> (<code class="type">string</code>)
       <a id="id-1.8.9.15.3.2.1.3" class="indexterm"></a>
      </span> <a href="#GUC-PLTCLU-START-PROC" class="id_link">#</a></