<term><envar>PERL</envar></term>

<listitem>

<para>

Full pathto the Perl interpreter. This will be used to

Full pathname of the Perl interpreter. This will be used to

determine the dependencies for building PL/Perl.

</para>

</listitem>

<term><envar>PYTHON</envar></term>

<listitem>

<para>

Full pathto the Python interpreter. This will be used to

Full pathname of the Python interpreter. This will be used to

determine the dependencies for building PL/Python. Also,

whether Python 2 or 3 is specified here (or otherwise

implicitly chosen) determines which variant of the PL/Python

<term><envar>TCLSH</envar></term>

<listitem>

<para>

Full pathto the Tcl interpreter. This will be used to

Full pathname of the Tcl interpreter. This will be used to

determine the dependencies for building PL/Tcl, and it will

be substituted into Tcl scripts.

</para>