   C preprocessor
        </P
></DD
><DT
><TT
CLASS="ENVAR"
>CPPFLAGS</TT
></DT
><DD
><P
>         options to pass to the C preprocessor
        </P
></DD
><DT
><TT
CLASS="ENVAR"
>DTRACE</TT
></DT
><DD
><P
>         location of the <TT
CLASS="COMMAND"
>dtrace</TT
> program
        </P
></DD
><DT
><TT
CLASS="ENVAR"
>DTRACEFLAGS</TT
></DT
><DD
><P
>         options to pass to the <TT
CLASS="COMMAND"
>dtrace</TT
> program
        </P
></DD
><DT
><TT
CLASS="ENVAR"
>FLEX</TT
></DT
><DD
><P
>         Flex program