"perl -MCPAN -e shell" acts unexpectedly on MacOS X 10.3.1

[Art Werschulz]

Hi.

I am running MacOS X 10.3.1 (Panther) on a G4 iMac. I am installing
some Perl modules using the CPAN shell, i.e., I issue the command
# perl -MCPAN -e shell
and then type commands to the cpan> prompt.

When I have done this on a Linux box, the .cpan directory is placed in
root's home directory /root, and the manified documentation goes
into /usr/share/man/man3. To me, this seems pretty reasonable.

However, when I do this on the Panther box, the .cpan directory is
placed in my personal home directory (~agw), and the manified
documentation goes into /man/man3. I find this somewhat odd, to say
the least.

Note that this happens when I am logged in as root, i.e., I have done
"su - root" or "login root" in the Terminal window where I'm working.

Any ideas as to why this is happening? More importantly, what can I
do to get the "more reasonable" behavior of putting .cpan in /root and
manpages in /usr/share/man/man3?

Thanks.