Perl and Python modules problem

hi everyone
i have just downloaded the latest version of
postgresql and was doing the installation according to
the article at
http://www.faqs.org/docs/ppbook/x486.htm when i got to
the point where the perl and python modules are to be
installed. the distribution used in that article is an
older version of postgresql and i cant seem to find
where the perl and python modules are in the current
release. when it didnt work for me i just skipped that
part but now im trying to reload a database which uses
the perl modules. the relevant piece from the
installation is below. does anyone know which commands
would work for the current version and how i could egt
the modules installed?
thanks
paul

Example 2-11. Installing Perl and Python modules
manually

$ su -c "gmake -C src/interfaces/perl5 install"
Password:
Password:
gmake: Entering directory
/usr/local/src/postgresql-7.1.3/src/interfaces/perl5'
perl Makefile.PL
Checking if your kit is complete...
Looks good
Writing Makefile for Pg
gmake -f Makefile clean
[...]
$ su -c "gmake -C src/interfaces/python install"
Password:
gmake: Entering directory
/usr/local/src/postgresql-7.1.3/src/interfaces/python'


sed -e
's,@libpq_srcdir@,../../../src/interfaces/libpq,g' \
    -e
's,@libpq_builddir@,../../../src/interfaces/libpq,g' \
    -e 's%@EXTRA_LIBS@% -lz -lcrypt -lresolv -lnsl
-ldl -lm -lbsd -lreadline -ltermcap %g' \
    -e 's%@INCLUDES@%-I../../../src/include%g' \
[...]

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