>
    <DD>
      <P>indicates an attempt to enter a component in the component table
	while some component was already registered under that name.</P>
    </DD>

    <DT>
      <TT>val <A name="logger">logger</A></TT>
    </DT>
    <DD>
      <P>set to a function that receives logging information from the component
        manager. The default activity is <TT>ignore</TT>, but can be configured
	using the environment variable <TT>ALICE_TRACE_COMPONENT</TT>, see
	structure <A href="component.html"><TT>Compone