I recommend you take this opportunity to stop what you are doing and instead try the following:

$ \curl -L http://install.perlbrew.pl | bash
$ source ~/perl5/perlbrew/etc/bashrc
$ perlbrew install perl-5.16.3
$ perlbrew switch perl-5.16.3
$ perlbrew install-cpanm
$ cpanm IO::Prompt
[download]

Why? Perlbrew allows you to install versions of Perl that are separate from the system Perl that comes with the RedHat distro. You can install it for a non-privileged user without having to depend upon your system administrator. Even if you do have root access, perlbrew keeps your CPAN installations away from what your Red Hat OS needs and uses. Be sure and read the documentation, but just an extra 10 minutes now can save you weeks in the future. Good luck!

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)