In this included file, we also have some variables to be expansed,
as <\$HOME> (bound in the Unix environment) or the INRIA's Rocquencourt
campus adress (bound in the Htmlc expansion environment). We write:
and since the variable (\$inria_address
\$(inria_address)) is defined in the
environment file ``$(environment_file_name)'', we obtain:
$inria_address