Internal Program Version: Sub::Exporter::Progressive  0.001013.5.42.0

Sub::Exporter is an incredibly powerful module, but with that 
power comes great responsibility, er- as well as some runtime 
penalties. This module is a 'Sub::Exporter' wrapper that will
let your users just use Exporter if all they are doing is picking 
exports, but use 'Sub::Exporter' if your users try to use 
'Sub::Exporter''s more advanced features, like renaming exports,
if they try to use them.

http://search.cpan.org/dist/Sub-Exporter-Progressive