older versions of EU::MM don't export WriteEmptyMakefile, but do provide it
[imager.git] / JPEG / Makefile.PL
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1#!perl -w
2use strict;
d24404be 3use ExtUtils::MakeMaker;
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4use Getopt::Long;
5use Config;
6
7my $verbose = $ENV{IM_VERBOSE};
8my @libpaths;
9my @incpaths;
10
11GetOptions("incpath=s", \@incpaths,
12 "libpath=s" => \@libpaths,
13 "verbose|v" => \$verbose);
14
15our $BUILDING_IMAGER;
16
17my $MM_ver = eval $ExtUtils::MakeMaker::VERSION;
18
19my %opts =
20 (
21 NAME => 'Imager::File::JPEG',
22 VERSION_FROM => 'JPEG.pm',
23 OBJECT => 'JPEG.o imjpeg.o imexif.o',
30160513 24 clean => { FILES => 'testout' },
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25 );
26
27my @inc;
28if ($BUILDING_IMAGER) {
29 push @inc, "-I..";
30 unshift @INC, "../lib";
31}
32else {
33 unshift @INC, "inc";
34 print "JPEG: building independently\n";
35 require Imager::ExtUtils;
36 push @inc, Imager::ExtUtils->includes;
37 $opts{TYPEMAPS} = [ Imager::ExtUtils->typemap ];
38
39 # Imager required configure through use
893474f1 40 my @Imager_req = ( Imager => "0.78" );
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41 if ($MM_ver >= 6.46) {
42 $opts{META_MERGE} =
43 {
44 configure_requires =>
45 {
46 @Imager_req,
47 },
48 build_requires =>
49 {
50 @Imager_req,
51 "Test::More" => "0.47",
52 },
53 resources =>
54 {
55 homepage => "http://imager.perl.org/",
56 repository =>
57 {
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58 url => "http://imager.perl.org/svn/trunk/Imager/JPEG",
59 web => "http://imager.perl.org/svnweb/public/browse/trunk/Imager/JPEG",
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60 type => "svn",
61 },
62 },
63 };
64 $opts{PREREQ_PM} =
65 {
66 @Imager_req,
67 };
68 }
69}
70
71require Imager::Probe;
72
73my %probe =
74 (
75 name => "JPEG",
76 inccheck => sub { -e File::Spec->catfile($_[0], "jpeglib.h") },
77 libbase => "jpeg",
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78 testcode => _jpeg_test_code(),
79 testcodeheaders => [ "stdio.h", "stddef.h", "jpeglib.h" ],
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80 incpath => \@incpaths,
81 libpath => \@libpaths,
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82 );
83
84my $probe_res = Imager::Probe->probe(\%probe);
85if ($probe_res) {
86 push @inc, $probe_res->{INC};
87 $opts{LIBS} = $probe_res->{LIBS};
88
89 $opts{INC} = "@inc";
90
91 if ($MM_ver > 6.06) {
92 $opts{AUTHOR} = 'Tony Cook <tony@imager.perl.org>';
93 $opts{ABSTRACT} = 'JPEG Image file support';
94 }
95
96 WriteMakefile(%opts);
97}
98else {
99 if ($BUILDING_IMAGER) {
d24404be 100 ExtUtils::MakeMaker::WriteEmptyMakefile(%opts);
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101 }
102 else {
103 # fail in good way
104 die "OS unsupported: JPEG libraries or headers not found\n";
105 }
106}
107
108sub _jpeg_test_code {
109 return <<'CODE';
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110struct jpeg_decompress_struct cinfo;
111struct jpeg_error_mgr jerr;
112
113cinfo.err = jpeg_std_error(&jerr);
114jpeg_create_decompress(&cinfo);
797a9f9c 115
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116return 0;
117CODE
118}