My computational geometry library was looking a little barren; so, following BrowserUk's advice, I looked around and found the following list of modules.

#!/usr/bin/perl

use strict;
use warnings;
use CPAN;

CPAN::Shell->force('install',

"Algorithm::Cluster",
"Algorithm::ClusterPoints",
"Algorithm::SVM",
"Algorithm::SVMLight",
"Bundle::Math",
"Geometry::Primitive",
"PDL",
"SOOT");
[download]

In addition to the modules, I'd recommend getting the current release of CGAL. You'll be needing CMake to install CGAL.