use ExtUtils::MakeMaker; WriteMakefile( NAME => "Data::Entropy", VERSION_FROM => "lib/Data/Entropy.pm", PREREQ_PM => { Crypt::Rijndael => 0, Data::Float => "0.002", Errno => "1.00", IO::File => "1.03", LWP => "5.5394", LWP::UserAgent => 0, Math::BigInt => "1.60", Math::BigRat => "0.04", Params::Classify => "0.000", }, );