>         
         Compiles <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> with support for the
         dynamic tracing tool DTrace.
         See <A
HREF="dynamic-trace.html"
>Section 27.4</A
>
         for more information.
        </P
><P
>         To point to the <TT
CLASS="COMMAND"
>dtrace</TT
> program, the
         environment variable <TT
CLASS="ENVAR"
>DTRACE</TT
> can be set.  This
         will often be necessary because <TT
CLASS="COMMAND"
>dtrace</TT
> is
         typically installed under <TT
