A little program that I used to get correct dependency list in Makefile.PL

extract_used.pl

#!/usr/bin/env perl

use strict;
use warnings;
use Module::ExtractUse;

my %used;
while (my $file = shift @ARGV) {
    my $p = Module::ExtractUse->new;
    $p->extract_use($file);
    %used = (%used, %{$p->used});
}

delete @used{qw(strict warnings feature)};

print "requires\n";
for (sort keys %used) {
    print "    '$_' => 0,\n";
}
print ";\n";