Login in as root, I tried "perl -MCPAN -e shell" but failed. How to go through the configuration? Is there any online reference/instruction I can follow?

The the errors I got were:

hput4# perl -MCPAN -e shell
Can't load '/usr/local/lib/perl5/5.00503/PA-RISC1.1/auto/IO/IO.sl' for module IO: Invalid argument at /usr/local/lib/perl5/5.00503/PA-RISC1.1/DynaLoader.pm line 169.
at /usr/local/lib/perl5/5.00503/PA-RISC1.1/IO/Handle.pm line 248 BEGIN failed--compilation aborted at /usr/local/lib/perl5/5.00503/PA-RISC1.1/IO/Seekable.pm line 50. BEGIN failed--compilation aborted at /usr/local/lib/perl5/5.00503/PA-RISC1.1/IO/File.pm line 111. BEGIN failed--compilation aborted at /usr/local/lib/perl5/5.00503/CPAN.pm line 27. BEGIN failed--compilation aborted.

Thank you very much!

Kevin