use 5.008;

use strict;
use warnings;

use ExtUtils::MakeMaker;
use Config;

my $shared_dir        = "../shared";
my $its_our_repo_file = "../this_is_the_Sereal_repo.txt";
my $in_source_repo    = ( -d "../../.git" && -d $shared_dir && -e $its_our_repo_file );
my $do_prompt         = !$in_source_repo || $ENV{CPAN_COMPAT};

unshift @INC, ".", "./inc";
unshift @INC, $shared_dir, "$shared_dir/inc"
    if $in_source_repo;

my $module = "Sereal::Decoder";
require inc::Sereal::BuildTools;
if ($in_source_repo) {
    inc::Sereal::BuildTools::link_files($shared_dir);
    inc::Sereal::BuildTools::generate_constant_includes($module);
}

my $optimize = inc::Sereal::BuildTools::build_optimize();

# Note you can Configure/optimize for miniz by modifying miniz.h
#   * Important: For best perf. be sure to customize the below macros for your target platform:
#     #define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 1
#     #define MINIZ_LITTLE_ENDIAN 1
#     #define MINIZ_HAS_64BIT_REGISTERS 1
# Or you can set USE_UNALIGNED in the env before running Makefile.PL

if ( $do_prompt and !defined $ENV{USE_UNALIGNED} ) {
    my $use_unaligned =
        prompt( "USE_UNALIGNED not set in env. Use unaligned loads and stores? yes/no", "no" );
    $ENV{USE_UNALIGNED} = $use_unaligned eq "yes";
}
else {
    $ENV{USE_UNALIGNED} ||= 1;
    $ENV{USE_UNALIGNED} = 0
        if $ENV{USE_UNALIGNED} ne 1
        && $ENV{USE_UNALIGNED} ne "yes";
}

if ( $do_prompt and !defined $ENV{NO_ASM} and !defined $ENV{ZSTD_DISABLE_ASM} ) {
    my $use_asm = prompt(
        "neither NO_ASM nor ZSTD_DISABLE_ASM set in env. Use assembly in ZSTD? yes/no",
        "yes"
    );
    $ENV{NO_ASM} = $use_asm ne "yes";
}

my $libs    = '';
my $subdirs = [];
my $objects = '$(BASEEXT)$(OBJ_EXT) srl_decoder$(OBJ_EXT)';
my $defines = inc::Sereal::BuildTools::build_defines();
my $inc     = '-I.';
$inc .= ' -I/usr/local/include'
    if $^O =~ /openbsd/;

# Prefer external libraries over the bundled one.
inc::Sereal::BuildTools::check_external_libraries( \$libs, \$defines, \$objects, $subdirs );

# See lib/ExtUtils/MakeMaker.pm for details of how to influence
# the contents of the Makefile that is written.
inc::Sereal::BuildTools::WriteMakefile(
    MIN_PERL_VERSION => '5.008',
    META_MERGE       => {
        resources => {
            repository => {
                url => 'git://github.com/Sereal/Sereal.git',
            },
            bugtracker => {
                web => 'https://github.com/Sereal/Sereal/issues',
            },
        },
        'meta-spec' => { version => 2 },
    },
    TEST_REQUIRES => {
        'Data::Dumper'      => '0',
        'File::Spec'        => '0',
        'Scalar::Util'      => '0',
        'Test::Deep'        => '0',
        'Test::Differences' => '0',
        'Test::LongString'  => '0',
        'Test::More'        => '0.88',
        'Test::Warn'        => '0',
    },
    BUILD_REQUIRES => {
        'ExtUtils::ParseXS' => '2.21',
    },
    CONFIGURE_REQUIRES => {
        'Devel::CheckLib'     => '1.16',
        'ExtUtils::MakeMaker' => '7.0',
    },
    NAME         => $module,
    VERSION_FROM => 'lib/Sereal/Decoder.pm',    # finds $VERSION
    PREREQ_PM    => {
        'XSLoader' => 0,
    },                                          # e.g., Module::Name => 1.1
    LICENSE       => 'perl',
    ABSTRACT_FROM => 'lib/Sereal/Decoder.pm',
    AUTHOR        => 'Steffen Mueller <smueller@cpan.org>, Yves Orton <yves@cpan.org>',
    LIBS          => [$libs],                                                             # e.g., '-lm'
    DEFINE        => $defines,
    INC           => $inc,                                                                # e.g., '-I. -I/usr/local/include'
    OPTIMIZE      => $optimize,
    OBJECT        => $objects,
    DIR           => $subdirs,
    test          => { TESTS => "t/*.t t/*/*/*.t" },
);
$ENV{OPTIMIZE} = $optimize;
