>perl -e"{ package Mod; $VERSION='3.15'; } Mod->import(100)"

>perl -e"{ package Mod; $VERSION='3.15'; use Exporter; @ISA='Exporter'; } Mod->import(100)"
Mod version 100 required--this is only version 3.15 at c:/Progs/perl588/lib/Exporter/Heavy.pm line 121.