File: Makefile.PL

package info (click to toggle)
libjson-perl 2.53-1
  • links: PTS, VCS
  • area: main
  • in suites: wheezy
  • size: 552 kB
  • sloc: perl: 2,382; makefile: 2
file content (143 lines) | stat: -rw-r--r-- 3,700 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
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;
}