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1 | # The perl/C checking voodoo is mostly stolen from Graham Barr's |
2 | # Scalar-List-Utils distribution. |
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3 | use strict; |
4 | use warnings; |
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5 | |
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6 | use ExtUtils::MakeMaker; |
7 | use Config qw(%Config); |
8 | use File::Spec; |
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9 | |
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10 | use 5.008; |
11 | |
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12 | # If undefined, try our best, if true, require XS, if false, never do |
13 | # XS |
14 | my $force_xs; |
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15 | |
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16 | for (@ARGV) { |
17 | /^--pm/ and $force_xs = 0; |
18 | /^--xs/ and $force_xs = 1; |
19 | } |
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20 | |
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21 | my $has_compiler = $force_xs; |
22 | unless ( defined $force_xs ) { |
23 | $has_compiler = check_for_compiler() |
24 | or no_cc(); |
25 | } |
26 | |
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27 | my %prereqs = ( |
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28 | 'Scalar::Util' => '1.18', |
29 | 'Sub::Name' => '0.04', |
30 | 'Sub::Identify' => '0.03', |
31 | 'MRO::Compat' => '0.05', |
32 | 'Test::More' => '0', |
33 | 'Test::Exception' => '0', |
34 | 'File::Spec' => '0', |
35 | 'Carp' => '0', |
36 | 'Devel::GlobalDestruction' => '0', |
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37 | ); |
38 | |
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39 | delete @prereqs{qw(Sub::Name Devel::GlobalDestruction)} |
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40 | unless $has_compiler; |
41 | |
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42 | write_makefile(); |
43 | |
44 | sub write_makefile { |
45 | my $ccflags = -d '.svn' || $ENV{MAINTAINER_MODE} ? '-Wall' : ''; |
46 | |
47 | WriteMakefile( |
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48 | VERSION_FROM => 'lib/Class/MOP.pm', |
49 | NAME => 'Class::MOP', |
50 | PREREQ_PM => \%prereqs, |
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51 | CONFIGURE => \&init, |
52 | CCFLAGS => $ccflags, |
53 | clean => { FILES => 'test.c test.o' }, |
54 | ABSTRACT_FROM => 'lib/Class/MOP.pm', |
55 | AUTHOR => 'Stevan Little <stevan@iinteractive.com>', |
56 | LICENSE => 'perl', |
57 | ); |
58 | } |
59 | |
60 | sub no_cc { |
61 | print <<'EOF'; |
62 | |
63 | I cannot determine if you have a C compiler |
64 | so I will install a perl-only implementation |
65 | |
66 | You can force installation of the XS version with |
67 | |
68 | perl Makefile.PL --xs |
69 | |
70 | EOF |
71 | } |
72 | |
73 | sub check_for_compiler { |
74 | print "Testing if you have a C compiler\n"; |
75 | |
76 | eval { require ExtUtils::CBuilder }; |
77 | if ($@) { |
78 | return _check_for_compiler_manually(); |
79 | } |
80 | else { |
81 | return _check_for_compiler_with_cbuilder(); |
82 | } |
83 | } |
84 | |
85 | sub _check_for_compiler_with_cbuilder { |
86 | my $cb = ExtUtils::CBuilder->new( quiet => 1 ); |
87 | |
88 | return $cb->have_compiler(); |
89 | } |
90 | |
91 | sub _check_for_compiler_manually { |
92 | unless ( open F, '>', 'test.c' ) { |
93 | warn |
94 | "Cannot write test.c, skipping test compilation and installing pure Perl version.\n"; |
95 | return 0; |
96 | } |
97 | |
98 | print F <<'EOF'; |
99 | int main() { return 0; } |
100 | EOF |
101 | |
102 | close F or return 0; |
103 | |
104 | my $cc = $Config{cc}; |
105 | if ( $cc =~ /cl(\.exe)?$/ ) { |
106 | |
107 | # stupid stupid MSVC compiler hack tacken from version.pm's |
108 | # Makefile.PL |
109 | $cc .= ' -c'; # prevent it from calling the linker |
110 | } |
111 | |
112 | system("$cc -o test$Config{obj_ext} test.c") and return 0; |
113 | |
114 | unlink $_ for grep {-f} 'test.c', "test$Config{obj_ext}"; |
115 | |
116 | return 1; |
117 | } |
118 | |
119 | # This is EUMM voodoo |
120 | sub init { |
121 | my $hash = $_[1]; |
122 | |
123 | unless ($has_compiler) { |
124 | @{$hash}{ 'XS', 'C' } = ( {}, [] ); |
125 | } |
126 | |
127 | $hash; |
128 | } |