Build.PL vs Makefile.PL

    Makefile.PL                                     Build.PL

    use ExtUtils::MakeMaker;                        use Module::Build;

    WriteMakefile(                                  Module::Build->new(
        NAME         => 'Semi::Semicolons',             module_name => 'Semi::Semicolons',
        VERSION_FROM => 'lib/Semi/Semicolons.pm',       
                                                        license     => 'perl',
        PREREQ_PM    => {                               requires    => {
            Filter::Util::Exec => 0                         Filter::Util::Exec => 0
        },                                              },
    );                                              )->create_build_script;