use strict;
use warnings;
use ExtUtils::MakeMaker;

sub merge_key_into {
    my ($href, $target, $source) = @_;
    %{$href->{$target}} = (%{$href->{$target}}, %{delete $href->{$source}});
}

my %opt = (
    NAME          => 'Function::Parameters',
    AUTHOR        => q{Lukas Mai <l.mai@web.de>},
    VERSION_FROM  => 'lib/Function/Parameters.pm',
    ABSTRACT_FROM => 'lib/Function/Parameters.pm',

    LICENSE => 'perl',
    PL_FILES => {},

    MIN_PERL_VERSION => '5.14.0',
    CONFIGURE_REQUIRES => {
        'strict' => 0,
        'warnings' => 0,
        'ExtUtils::MakeMaker' => '6.48',
    },
    BUILD_REQUIRES => {},
    TEST_REQUIRES => {
        'constant' => 0,
        'strict' => 0,
        'utf8' => 0,
        'Dir::Self' => 0,
        'Test::More' => 0,
        'Test::Fatal' => 0,
    },
    PREREQ_PM => {
        'Carp' => 0,
        'XSLoader' => 0,
        'warnings' => 0,
    },

    depend => {
        Makefile    => '$(VERSION_FROM)',
        '$(OBJECT)' => join(' ', glob 'hax/*.c.inc'),
    },
    test   => { TESTS    => 't/*.t t/foreign/*.t t/foreign/*/*.t' },
    dist   => { COMPRESS => 'gzip -9f', SUFFIX => 'gz', },
    clean  => { FILES    => 'Function-Parameters-*' },

    META_MERGE => {
        'meta-spec' => { version => 2 },
        resources => {
            repository => {
                url => 'git://github.com/mauke/Function-Parameters',
                web => 'https://github.com/mauke/Function-Parameters',
                type => 'git',
            },
        },
    },
);

(my $mm_version = ExtUtils::MakeMaker->VERSION) =~ tr/_//d;

if ($mm_version < 6.67_04) {
    # Why? For the glory of satan, of course!
    no warnings qw(redefine);
    *ExtUtils::MM_Any::_add_requirements_to_meta_v1_4 = \&ExtUtils::MM_Any::_add_requirements_to_meta_v2;
}

if ($mm_version < 6.63_03) {
    merge_key_into \%opt, 'BUILD_REQUIRES', 'TEST_REQUIRES';
}

if ($mm_version < 6.55_01) {
    merge_key_into \%opt, 'CONFIGURE_REQUIRES', 'BUILD_REQUIRES';
}

if ($mm_version < 6.51_03) {
    merge_key_into \%opt, 'PREREQ_PM', 'CONFIGURE_REQUIRES';
}

WriteMakefile %opt;