use ExtUtils::MakeMaker; WriteMakefile( NAME => "Data::Dumper", VERSION_FROM => 'Dumper.pm', 'dist' => { COMPRESS => 'gzip -9f', SUFFIX => 'gz', DIST_DEFAULT => 'all tardist', }, MAN3PODS => {}, ( (grep { $_ eq 'PERL_CORE=1' } @ARGV) ? () : ('DEFINE' => '-DUSE_PPPORT_H') ), );