syphilis: For example, take a look at the dependency chains for current Inlne::C and Math::GMP on a fresh install of perl-5.22 - and imagine trying to do all that by hand.

trippledubs: Great use case for Perlbrew!!

No, that is a use case for cpan/cpanm/cpanp, they download/install the massie list of prerequisites

I don't think you are saving yourself any time by not learning to use perlbrew. Well, I guess you are already self imposing a negative consequence of restricting yourself from using Math::GMP.

Heheh, kids say the darndest things