use ExtUtils::MakeMaker; #my $OSSPATH = '/opt/oss'; if (defined $OSSPATH) { WriteMakefile('NAME' => 'MIDI::Music', 'VERSION_FROM' => 'Music.pm', 'LIBS' => ["-L$OSSPATH -lOSSlib"], 'DEFINE' => '-DOSSLIB', 'INC' => "-I$OSSPATH/include", ); } else { WriteMakefile('NAME' => 'MIDI::Music', 'VERSION_FROM' => 'Music.pm', 'LIBS' => [''], 'DEFINE' => '', 'INC' => '', ); }