This is the sort of questions where the output of perl -V would really help. Please post it.

You could set the environment variable PERL5LIB to your current perl's search path, appending the search path of perl-5.8.0 and try with that.

run perl -V to see the contents of @INC; see perlrun.

When building perl, you are asked if you want to include any previous version's search path into the current one; you could rebuild perl and do that. But without seeing how you configured and installed perl, it's difficult to give more advice.

--shmem

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}