Portability

• Though written for Perl 5.6 or later, it was easy to backport to 5.005_03

• In fact, it took longer to build 5.005_03

• We dropped use warnings

• We eliminated our by putting $VERSION = '0.04' before use strict

• local($^W) = 0 instead of no warnings 'redefine'

• We had to use INIT instead of CHECK