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require 5.00503;
use strict;
use ExtUtils::MakeMaker;
use lib qw( ./lib );
$| = 1;
eval q| require JSON |;
# B module can't install? I'm not careful for such a problem.
# Leave us alone today?
if ($@) {
print "We try to look up lib/JSON.pm, but in vain. B module can't install?\n";
print "Set the environmental variable 'PERL_DL_NONLAZY' with 0.\n";
print "And see to ExtUtils::MM_Unix.\n";
print "perl says : $@";
print "We do not make Makefile by requiring Perl version 7.0.\n";
require 7.0000;
}
my $version = JSON->VERSION;
my $req_xs_ver = JSON->require_xs_version;
my $has_xs = 0;
my $xs_ver_is_ok;
my $message;
my $pp_only = $ENV{ PERL_ONLY } || $ENV{ NO_XS };
eval q| require JSON::XS |;
$has_xs = 1 unless ($@);
if ($has_xs) {
my $xs_version = JSON::XS->VERSION;
if ($xs_version >= $req_xs_ver) {
$message = "You have JSON::XS (v.$xs_version), so JSON can work very fast!!";
$xs_ver_is_ok++;
}
else {
$message = "Your JSON::XS version is $xs_version, but if you install v.$req_xs_ver,\n"
. "JSON will work faster.";
}
}
else {
$message = "If you install JSON::XS v.$req_xs_ver, it makes JSON faster.";
}
print <<EOF;
Welcome to JSON (v.$version)
=============================
$message
************************** CAUTION **************************
* This is 'JSON version 2' and there are many differences *
* to version 1.xx *
* Please check your applications useing old version. *
* See to 'INCOMPATIBLE CHANGES TO OLD VERSION' and 'TIPS' *
*************************************************************
EOF
my @prereq_pm;
if ( not $pp_only and can_auto_xs_install() and not $xs_ver_is_ok ) {
my $prompt = prompt("Do you want to install JSON::XS?(Y/n)", 'Y');
if ( $prompt =~ /^[yY]/ ) {
@prereq_pm = ( 'JSON::XS' => $req_xs_ver );
}
}
WriteMakefile(
'NAME' => 'JSON',
'VERSION_FROM' => 'lib/JSON.pm', # finds $VERSION
'PREREQ_PM' => {
'Test::More' => 0,
@prereq_pm,
},
($] >= 5.005 ? ## Add these new keywords supported since 5.005
(ABSTRACT_FROM => 'lib/JSON.pm', # retrieve abstract from module
AUTHOR => 'Makamaka Hannyaharamitu, E<lt>makamaka[at]cpan.orgE<gt>') : ()),
( $ExtUtils::MakeMaker::VERSION >= 6.3002 ? ('LICENSE' => 'perl', ) : () ),
( $ExtUtils::MakeMaker::VERSION >= 6.46 ? (
'META_MERGE' => {
resources => {
repository => 'http://github.com/makamaka/JSON',
},
} ) : ()
),
);
if ($] < 5.006) { # I saw to http://d.hatena.ne.jp/asakusabashi/20051231/p1
open(IN, "Makefile");
open(OUT,">Makefile.tmp") || die;
while(<IN>) {
s/PERL_DL_NONLAZY=1//g;
print OUT;
}
close(OUT);
close(IN);
rename("Makefile.tmp" => "Makefile");
}
sub can_auto_xs_install {
return 0 if $] < 5.008002; # JSON::XS requires
return 0 unless ( $ENV{PERL5_CPAN_IS_RUNNING} or $ENV{PERL5_CPANM_IS_RUNNING} ); # not cpan/cpanm running
return can_cc();
}
# copied from http://cpansearch.perl.org/src/GBARR/Scalar-List-Utils-1.23/Makefile.PL
use Config;
sub can_cc {
require File::Spec;
foreach my $cmd (split(/ /, $Config::Config{cc})) {
my $_cmd = $cmd;
return $_cmd if (-x $_cmd or $_cmd = MM->maybe_command($_cmd));
for my $dir ((split /$Config::Config{path_sep}/, $ENV{PATH}), '.') {
my $abs = File::Spec->catfile($dir, $_[1]);
return $abs if (-x $abs or $abs = MM->maybe_command($abs));
}
}
return;
}
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