Trying to install Bugzilla-4.0.10 with Perl 5.18.x you might have a problem with DBI Version

Something like this may show up:

Checking for                  DBI (v1.614)    found v1.63 

Even though you have DBI-1.630 installed..

So you'll have to force it to use a version that it's not going to strip the last zero off of.

perl install-module.pl --shell
TIMB/DBI-1.628.tar.gz
exit

And voila!

Checking for                  DBI (v1.614)    ok: found v1.628