mirror of
https://github.com/xcat2/xcat-dep.git
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144 lines
3.6 KiB
Perl
144 lines
3.6 KiB
Perl
require 5.00503;
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use strict;
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use ExtUtils::MakeMaker;
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use lib qw( ./lib );
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$| = 1;
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eval q| require JSON |;
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# B module can't install? I'm not careful for such a problem.
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# Leave us alone today?
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if ($@) {
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print "We try to look up lib/JSON.pm, but in vain. B module can't install?\n";
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print "Set the environmental variable 'PERL_DL_NONLAZY' with 0.\n";
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print "And see to ExtUtils::MM_Unix.\n";
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print "perl says : $@";
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print "We do not make Makefile by requiring Perl version 7.0.\n";
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require 7.0000;
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}
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my $version = JSON->VERSION;
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my $req_xs_ver = JSON->require_xs_version;
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my $has_xs = 0;
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my $xs_ver_is_ok;
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my $message;
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my $pp_only = $ENV{ PERL_ONLY } || $ENV{ NO_XS };
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eval q| require JSON::XS |;
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$has_xs = 1 unless ($@);
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if ($has_xs) {
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my $xs_version = JSON::XS->VERSION;
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if ($xs_version >= $req_xs_ver) {
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$message = "You have JSON::XS (v.$xs_version), so JSON can work very fast!!";
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$xs_ver_is_ok++;
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}
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else {
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$message = "Your JSON::XS version is $xs_version, but if you install v.$req_xs_ver,\n"
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. "JSON will work faster.";
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}
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}
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else {
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$message = "If you install JSON::XS v.$req_xs_ver, it makes JSON faster.";
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}
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print <<EOF;
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Welcome to JSON (v.$version)
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=============================
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$message
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************************** CAUTION **************************
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* This is 'JSON version 2' and there are many differences *
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* to version 1.xx *
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* Please check your applications useing old version. *
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* See to 'INCOMPATIBLE CHANGES TO OLD VERSION' and 'TIPS' *
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*************************************************************
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EOF
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my @prereq_pm;
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if ( not $pp_only and can_auto_xs_install() and not $xs_ver_is_ok ) {
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my $prompt = prompt("Do you want to install JSON::XS?(Y/n)", 'Y');
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if ( $prompt =~ /^[yY]/ ) {
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@prereq_pm = ( 'JSON::XS' => $req_xs_ver );
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}
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}
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WriteMakefile(
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'NAME' => 'JSON',
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'VERSION_FROM' => 'lib/JSON.pm', # finds $VERSION
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'PREREQ_PM' => {
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'Test::More' => 0,
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@prereq_pm,
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},
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($] >= 5.005 ? ## Add these new keywords supported since 5.005
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(ABSTRACT_FROM => 'lib/JSON.pm', # retrieve abstract from module
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AUTHOR => 'Makamaka Hannyaharamitu, E<lt>makamaka[at]cpan.orgE<gt>') : ()),
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( $ExtUtils::MakeMaker::VERSION >= 6.3002 ? ('LICENSE' => 'perl', ) : () ),
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( $ExtUtils::MakeMaker::VERSION >= 6.46 ? (
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'META_MERGE' => {
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resources => {
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repository => 'http://github.com/makamaka/JSON',
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},
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} ) : ()
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),
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);
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if ($] < 5.006) { # I saw to http://d.hatena.ne.jp/asakusabashi/20051231/p1
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open(IN, "Makefile");
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open(OUT,">Makefile.tmp") || die;
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while(<IN>) {
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s/PERL_DL_NONLAZY=1//g;
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print OUT;
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}
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close(OUT);
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close(IN);
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rename("Makefile.tmp" => "Makefile");
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}
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sub can_auto_xs_install {
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return 0 if $] < 5.008002; # JSON::XS requires
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return 0 unless ( $ENV{PERL5_CPAN_IS_RUNNING} or $ENV{PERL5_CPANM_IS_RUNNING} ); # not cpan/cpanm running
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return can_cc();
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}
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# copied from http://cpansearch.perl.org/src/GBARR/Scalar-List-Utils-1.23/Makefile.PL
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use Config;
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sub can_cc {
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require File::Spec;
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foreach my $cmd (split(/ /, $Config::Config{cc})) {
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my $_cmd = $cmd;
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return $_cmd if (-x $_cmd or $_cmd = MM->maybe_command($_cmd));
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for my $dir ((split /$Config::Config{path_sep}/, $ENV{PATH}), '.') {
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my $abs = File::Spec->catfile($dir, $_[1]);
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return $abs if (-x $abs or $abs = MM->maybe_command($abs));
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}
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}
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return;
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}
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