3 use ExtUtils::MakeMaker;
7 my $verbose = $ENV{IM_VERBOSE};
11 GetOptions("incpath=s", \@incpaths,
12 "libpath=s" => \@libpaths,
13 "verbose|v" => \$verbose);
18 my $MM_ver = eval $ExtUtils::MakeMaker::VERSION;
22 NAME => 'Imager::File::GIF',
23 VERSION_FROM => 'GIF.pm',
24 OBJECT => 'GIF.o imgif.o',
25 clean => { FILES => 'testout' },
29 if ($BUILDING_IMAGER) {
31 unshift @INC, "../lib";
35 print "GIF: building independently\n";
36 require Imager::ExtUtils;
37 push @inc, Imager::ExtUtils->includes;
38 $opts{TYPEMAPS} = [ Imager::ExtUtils->typemap ];
40 # Imager required configure through use
41 my @Imager_req = ( Imager => "0.78" );
42 if ($MM_ver >= 6.46) {
52 "Test::More" => "0.47",
56 homepage => "http://imager.perl.org/",
59 url => "http://imager.perl.org/svn/trunk/Imager/GIF",
60 web => "http://imager.perl.org/svnweb/public/browse/trunk/Imager/GIF",
72 require Imager::Probe;
77 inccheck => sub { -e File::Spec->catfile($_[0], "gif_lib.h") },
79 testcode => _gif_test_code(),
80 testcodeheaders => [ "gif_lib.h", "stdio.h" ],
81 incpath => \@incpaths,
82 libpath => \@libpaths,
85 my $probe_res = Imager::Probe->probe(\%probe);
87 $IMAGER_LIBS{GIF} = 1;
89 push @inc, $probe_res->{INC};
90 $opts{LIBS} = $probe_res->{LIBS};
91 $opts{DEFINE} = $probe_res->{DEFINE};
95 $opts{AUTHOR} = 'Tony Cook <tony@imager.perl.org>';
96 $opts{ABSTRACT} = 'GIF Image file support';
102 $IMAGER_LIBS{GIF} = 0;
104 if ($BUILDING_IMAGER) {
105 ExtUtils::MakeMaker::WriteEmptyMakefile(%opts);
109 die "OS unsupported: GIF libraries or headers not found\n";
115 /* TODO: test DGifOpen() and processing with callbacks */
117 const char vers[] = GIF_LIB_VERSION;
118 const char *versp = vers;
121 gf=DGifOpenFileName("testimg/expected.gif");
123 fprintf(stderr, "GIF: Cannot open testimg/expected.gif\n");
126 if (gf->SWidth != 16 || gf->SHeight != 16) {
127 fprintf(stderr, "GIF: bad screen description (%d x %d)\n", gf->SWidth, gf->SHeight);
130 /* crashes in older versions of giflib */
131 EGifSetGifVersion("89a");
132 EGifSetGifVersion("87a");
134 /* skip the " Version " */
135 while (*versp && (*versp < '0' || *versp > '9'))
138 fprintf(stderr, "GIF: Cannot find version number in '%s'\n", vers);
142 while (*versp && *versp >= '0' && *versp <= '9') {
144 ver_maj += *versp++ - '0';
146 if (*versp != '.' || versp[1] < '0' || versp[1] > '9') {
147 fprintf(stderr, "Cannot parse major version number in '%s'\n", vers);
150 ++versp; /* skip '.' */
152 while (*versp && *versp >= '0' && *versp <= '9') {
154 ver_min += *versp++ - '0';
157 fprintf(stderr, "GIF: gif lib version 3 is no longer supported\n");
160 if (ver_maj == 4 && ver_min < 1) {
161 fprintf(stderr, "GIF: you need at least giflib 4.1\n");
164 fprintf(stderr, "GIF: Major %d, Minor %d\n", ver_maj, ver_min);