-
Notifications
You must be signed in to change notification settings - Fork 3
/
Makefile.PL
868 lines (727 loc) · 23.2 KB
/
Makefile.PL
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
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
#!perl -w
use strict;
use ExtUtils::MakeMaker;
use Cwd;
use Config;
use File::Spec;
use Getopt::Long;
use vars qw(%Recommends);
use ExtUtils::Manifest qw(maniread);
use vars qw(%formats $VERBOSE $INCPATH $LIBPATH $NOLOG $DEBUG_MALLOC $MANUAL $CFLAGS $LFLAGS $DFLAGS);
#
# IM_INCPATH colon seperated list of paths to extra include paths
# IM_LIBPATH colon seperated list of paths to extra library paths
#
# IM_VERBOSE turns on verbose mode for the library finding and such
# IM_MANUAL to manually select which libraries are used and which not
# IM_ENABLE to programmatically select which libraries are used
# and which are not
# IM_NOLOG if true logging will not be compiled into the module
# IM_DEBUG_MALLOC if true malloc debbuging will be compiled into the module
# do not use IM_DEBUG_MALLOC in production - this slows
# everything down by alot
# IM_CFLAGS Extra flags to pass to the compiler
# IM_LFLAGS Extra flags to pass to the linker
# IM_DFLAGS Extra flags to pass to the preprocessor
# IM_SUPPRESS_PROMPT Suppress the prompt asking about gif support
getenv(); # get environment variables
my $lext=$Config{'so'}; # Get extensions of libraries
my $aext=$Config{'_a'};
my $help; # display help if set
my @enable; # list of drivers to enable
my @disable; # or list of drivers to disable
my @incpaths; # places to look for headers
my @libpaths; # places to look for libraries
my $noprobe; # non-zero to disable newer probes
my $noexif; # non-zero to disable EXIF parsing of JPEGs
GetOptions("help" => \$help,
"enable=s" => \@enable,
"disable=s" => \@disable,
"incpath=s", \@incpaths,
"libpath=s" => \@libpaths,
"noprobe" => \$noprobe,
"verbose|v" => \$VERBOSE,
"nolog" => \$NOLOG,
"noexif" => \$noexif);
if ($VERBOSE) {
print "Verbose mode\n";
require Data::Dumper;
import Data::Dumper qw(Dumper);
}
if ($help) {
usage();
}
my @defines;
if ($NOLOG) { print "Logging not compiled into module\n"; }
else {
push @defines, [ IMAGER_LOG => 1, "Logging system" ];
}
if ($DEBUG_MALLOC) {
push @defines, [ IMAGER_DEBUG_MALLOC => 1, "Use Imager's DEBUG malloc()" ];
print "Malloc debugging enabled\n";
}
if (@enable && @disable) {
print STDERR "Only --enable or --disable can be used, not both, try --help\n";
exit 1;
}
my %definc;
my %deflib;
my @incs; # all the places to look for headers
my @libs; # all the places to look for libraries
init(); # initialize global data
pathcheck(); # Check if directories exist
if (exists $ENV{IM_ENABLE}) {
my %en = map { $_, 1 } split ' ', $ENV{IM_ENABLE};
for my $key (keys %formats) {
delete $formats{$key} unless $en{$key};
}
}
if (@enable) {
my %en = map { $_ => 1 } map { split /,/ } @enable;
for my $key (keys %formats) {
delete $formats{$key} unless $en{$key};
}
}
elsif (@disable) {
delete @formats{map { split /,/ } @disable};
}
# Pick what libraries are used
if ($MANUAL) {
manual();
} else {
automatic();
}
# Make sure there isn't a clash between the gif libraries.
gifcheck();
my $lib_cflags = '';
my $F_LIBS = '';
my $F_OBJECT = '';
for my $frmkey (sort { $formats{$a}{order} <=> $formats{$b}{order} } keys %formats) {
my $frm = $formats{$frmkey};
push @defines, [ $frm->{def}, 1, "$frmkey available" ];
$F_LIBS .= ' ' .$frm->{libfiles};
$F_OBJECT .= ' ' .$frm->{objfiles};
if ($frm->{cflags}) {
$lib_cflags .= ' ' .$frm->{cflags};
++$definc{$_} for map { /^-I(.*)$/ ? ($1) : () }
grep /^-I./, split ' ', $frm->{cflags};
}
}
unless ($noexif) {
print "EXIF support enabled\n";
push @defines, [ 'IMEXIF_ENABLE', 1, "Enable experimental EXIF support" ];
$F_OBJECT .= ' imexif.o';
}
my $F_INC = join ' ', map "-I$_", map / / ? qq{"$_"} : $_,
grep !$definc{$_}, @incs;
$F_LIBS = join(' ',map "-L$_", map / / ? qq{"$_"} : $_,
grep !$deflib{$_}++, @libs) . $F_LIBS;
my $OSLIBS = '';
my $OSDEF = "-DOS_$^O";
if ($^O eq 'hpux') { $OSLIBS .= ' -ldld'; }
if (defined $Config{'d_dlsymun'}) { $OSDEF .= ' -DDLSYMUN'; }
my @objs = qw(Imager.o draw.o polygon.o image.o io.o iolayer.o
log.o gaussian.o conv.o pnm.o raw.o feat.o font.o
filters.o dynaload.o stackmach.o datatypes.o
regmach.o trans2.o quant.o error.o convert.o
map.o tags.o palimg.o maskimg.o img16.o rotate.o
bmp.o tga.o rgb.o color.o fills.o imgdouble.o limits.o hlines.o
imext.o);
$Recommends{Imager} =
{ 'Parse::RecDescent' => 0 };
my %opts=(
'NAME' => 'Imager',
'VERSION_FROM' => 'Imager.pm',
'LIBS' => "$LFLAGS -lm $OSLIBS $F_LIBS",
'DEFINE' => "$OSDEF $CFLAGS",
'INC' => "$lib_cflags $DFLAGS $F_INC",
'OBJECT' => join(' ', @objs, $F_OBJECT),
clean => { FILES=>'testout meta.tmp' },
PM => gen_PM(),
);
if ($ExtUtils::MakeMaker::VERSION > 6.06) {
$opts{AUTHOR} = 'Tony Cook <tony@imager.perl.org>, Arnar M. Hrafnkelsson';
$opts{ABSTRACT} = 'Perl extension for Generating 24 bit Images';
}
if ($ExtUtils::MakeMaker::VERSION > 6.10) {
$opts{NO_META} = 1;
}
make_imconfig(\@defines);
if ($VERBOSE) { print Dumper(\%opts); }
mkdir('testout',0777); # since we cannot include it in the archive.
make_metafile(\%opts);
WriteMakefile(%opts);
exit;
sub MY::postamble {
my $self = shift;
my $perl = $self->{PERLRUN} ? '$(PERLRUN)' : '$(PERL)';
'
dyntest.$(MYEXTLIB) : dynfilt/Makefile
cd dynfilt && $(MAKE) $(PASTHRU)
lib/Imager/Regops.pm : regmach.h regops.perl
$(PERL) regops.perl regmach.h lib/Imager/Regops.pm
imconfig.h : Makefile.PL
$(ECHO) "imconfig.h out-of-date with respect to $?"
$(PERLRUN) Makefile.PL
$(ECHO) "==> Your Makefile has been rebuilt - re-run your make command <=="
'.qq!
lib/Imager/APIRef.pm : \$(C_FILES) apidocs.perl
$perl apidocs.perl lib/Imager/APIRef.pm
!;
}
# manual configuration of helper libraries
sub manual {
print <<EOF;
Please answer the following questions about
which formats are avaliable on your computer
press <return> to continue
EOF
<STDIN>; # eat one return
for my $frm(sort { $formats{$b}{order} <=> $formats{$a}{order} } keys %formats) {
SWX:
if ($formats{$frm}{docs}) { print "\n",$formats{$frm}{docs},"\n\n"; }
print "Enable $frm support: ";
my $gz = <STDIN>;
chomp($gz);
if ($gz =~ m/^(y|yes|n|no)/i) {
$gz=substr(lc($gz),0,1);
if ($gz eq 'n') {
delete $formats{$frm};
}
} else { goto SWX; }
}
}
# automatic configuration of helper libraries
sub automatic {
print "Automatic probing:\n" if $VERBOSE;
for my $frm (sort { $formats{$a}{order} <=> $formats{$b}{order} } keys %formats) {
delete $formats{$frm} if !checkformat($frm);
}
}
sub gifcheck {
if ($formats{'gif'} and $formats{'ungif'}) {
print "ungif and gif can not coexist - removing ungif support\n";
delete $formats{'ungif'};
}
RETR:
if (($formats{'gif'} or $formats{'ungif'}) && !$ENV{IM_SUPPRESS_PROMPT}) {
print <<EOFF;
You have libgif or libungif installed. They are both known to have
bugs. Imager can crash or display other strange behaviour after
reading or writing gif images. Some of the gif tests can even fail
since they stress some parts of the buggy code.
libungif 4.1.2 and later is safe. giflib 4.1.3 needs at least one
patch to have all the bugs fixed, see README for details.
Of course it's possible your operating system distributor has patched
all of these problems and you have nothing to worry about.
Do you want to remove gif support? [Y/n]
EOFF
my $resp = <STDIN>;
chomp($resp);
if ($resp ne "n") {
delete $formats{'gif'};
delete $formats{'ungif'};
return;
}
}
for my $frm (qw(gif ungif)) {
checkformat($frm) if ($MANUAL and $formats{$frm});
}
my @dirs;
for my $frm (grep $formats{$_}, qw(gif ungif)) {
push(@dirs, @{$formats{$frm}{incdir}}) if $formats{$frm}{incdir};
}
my $minor = 0;
my $major = 0;
FILES: for my $dir (@dirs) {
my $h = "$dir/gif_lib.h";
open H, "< $h" or next;
while (<H>) {
if (/GIF_LIB_VERSION\s+"\s*version\s*(\d+)\.(\d+)/i) {
$major = $1;
$minor = $2;
close H;
last FILES;
}
}
close H;
}
# we need the version in a #ifdefable form
push @defines, [ IM_GIFMAJOR => $major, "Parsed giflib version" ];
push @defines, [ IM_GIFMINOR => $minor ];
}
sub gd {
my($path,$chk)=@_;
# print "checking path $path\n";
if ( !opendir(DH,$path) ) {
warn "Cannot open dir $path: $!\n";
return;
}
my @l=grep { $chk->($_) } readdir(DH);
# print @l;
close(DH);
return map $path, @l;
}
sub checkformat {
my $frm=shift;
print " checkformat($frm)\n" if $VERBOSE;
my $code = $formats{$frm}{'code'};
if ($code && !$noprobe) {
print " Calling probe function\n" if $VERBOSE;
return 1 if $code->($formats{$frm}, $frm);
}
my $libchk=$formats{$frm}{'libcheck'};
my $incchk=$formats{$frm}{'inccheck'};
my @l;
for my $lp (@libs) {
push(@l, gd($lp,$libchk));
}
my @i;
for my $ip (@incs) {
push(@i, $ip) if $incchk->($ip,$frm);
}
printf("%10s: includes %s - libraries %s\n",$frm,(@i?'found':'not found'),(@l?'found':'not found'));
$formats{$frm}{incdir} = \@i;
$formats{$frm}{libdir} = \@l;
return scalar(@i && @l);
}
sub pathcheck {
if ($VERBOSE) {
print "pathcheck\n";
print " Include paths:\n";
for (@incs) { print $_,"\n"; }
}
@incs=grep { -d $_ && -r _ && -x _ or ( print(" $_ doesnt exist or is unaccessible - removed.\n"),0) } @incs;
if ($VERBOSE) {
print "\nLibrary paths:\n";
for (@libs) { print $_,"\n"; }
}
@libs=grep { -d $_ && -r _ && -x _ or ( print(" $_ doesnt exist or is unaccessible - removed.\n"),0) } @libs;
print "\ndone.\n";
}
# Format data initialization
# format definition is:
# defines needed
# default include path
# files needed for include (boolean perl code)
# default lib path
# libs needed
# files needed for link (boolean perl code)
# object files needed for the format
sub init {
my @definc = qw(/usr/include);
@definc{@definc}=(1) x @definc;
@incs=(split(/\Q$Config{path_sep}/, $INCPATH),
map { split /\Q$Config{path_sep}/} @incpaths );
if ($Config{locincpth}) {
push @incs, grep -d, split ' ', $Config{locincpth};
}
if ($^O =~ /win32/i && $Config{cc} =~ /\bcl\b/i) {
push(@incs, split /;/, $ENV{INCLUDE}) if exists $ENV{INCLUDE};
}
push @incs, grep -d,
qw(/sw/include
/usr/include/freetype2
/usr/local/include/freetype2
/usr/local/include/freetype1/freetype
/usr/include /usr/local/include /usr/include/freetype
/usr/local/include/freetype);
if ($Config{ccflags}) {
my @hidden = map { /^-I(.*)$/ ? ($1) : () } split ' ', $Config{ccflags};
push @incs, @hidden;
@definc{@hidden} = (1) x @hidden;
}
@libs= ( split(/\Q$Config{path_sep}/,$LIBPATH),
map { split /\Q$Config{path_sep}/} @libpaths );
if ($Config{loclibpth}) {
push @libs, grep -d, split ' ', $Config{loclibpth};
}
push @libs, grep -d, qw(/sw/lib), split(/ /, $Config{'libpth'});
push @libs, grep -d, split / /, $Config{libspath} if $Config{libspath};
if ($^O =~ /win32/i && $Config{cc} =~ /\bcl\b/i) {
push(@libs, split /;/, $ENV{LIB}) if exists $ENV{LIB};
}
if ($^O eq 'cygwin') {
push(@libs, '/usr/lib/w32api') if -d '/usr/lib/w32api';
push(@incs, '/usr/include/w32api') if -d '/usr/include/w32api';
}
if ($Config{ldflags}) {
# some builds of perl put -Ldir into ldflags without putting it in
# loclibpth, let's extract them
my @hidden = grep -d, map { /^-L(.*)$/ ? ($1) : () }
split ' ', $Config{ldflags};
push @libs, @hidden;
# don't mark them as seen - EU::MM will remove any libraries
# it can't find and it doesn't look for -L in ldflags
#@deflib{@hidden} = @hidden;
}
$formats{'jpeg'}={
order=>'21',
def=>'HAVE_LIBJPEG',
inccheck=>sub { -e catfile($_[0], 'jpeglib.h') },
libcheck=>sub { $_[0] eq "libjpeg$aext" or $_ eq "libjpeg.$lext" },
libfiles=>'-ljpeg',
objfiles=>'jpeg.o',
docs=>q{
In order to use jpeg with this module you need to have libjpeg
installed on your computer}
};
$formats{'tiff'}={
order=>'23',
def=>'HAVE_LIBTIFF',
inccheck=>sub { -e catfile($_[0], 'tiffio.h') },
libcheck=>sub { $_[0] eq "libtiff$aext" or $_ eq "libtiff.$lext" },
libfiles=>'-ltiff',
objfiles=>'tiff.o',
docs=>q{
In order to use tiff with this module you need to have libtiff
installed on your computer}
};
$formats{'png'}={
order=>'22',
def=>'HAVE_LIBPNG',
inccheck=>sub { -e catfile($_[0], 'png.h') },
libcheck=>sub { $_[0] eq "libpng$aext" or $_[0] eq "libpng.$lext" },
libfiles=>'-lpng -lz',
objfiles=>'png.o',
docs=>q{
Png stands for Portable Network Graphics and is intended as
a replacement for gif on the web. It is patent free and
is recommended by the w3c, you need libpng to use these formats},
code => \&png_probe,
};
$formats{'gif'}={
order=>'20',
def=>'HAVE_LIBGIF',
inccheck=>sub { -e catfile($_[0], 'gif_lib.h') },
libcheck=>sub { $_[0] eq "libgif$aext" or $_[0] eq "libgif.$lext" },
libfiles=>'-lgif',
objfiles=>'gif.o',
docs=>q{
gif is the de facto standard for webgraphics at the moment,
it does have some patent problems. If you have giflib and
are not in violation with the unisys patent you should use
this instead of the 'ungif' option. Note that they cannot
be in use at the same time}
};
$formats{'ungif'}={
order=>'21',
def=>'HAVE_LIBGIF',
inccheck=>sub { -e catfile($_[0], 'gif_lib.h') },
libcheck=>sub { $_[0] eq "libungif$aext" or $_[0] eq "libungif.$lext" },
libfiles=>'-lungif',
objfiles=>'gif.o',
docs=>q{
gif is the de facto standard for webgraphics at the moment,
it does have some patent problems. If you have libungif and
want to create images free from LZW patented compression you
should use this option instead of the 'gif' option}
};
$formats{'T1-fonts'}={
order=>'30',
def=>'HAVE_LIBT1',
inccheck=>sub { -e catfile($_[0], 't1lib.h') },
libcheck=>sub { $_[0] eq "libt1$aext" or $_[0] eq "libt1.$lext" },
libfiles=>'-lt1',
objfiles=>'',
docs=>q{
postscript t1 fonts are scalable fonts. They can include
ligatures and kerning information and generally yield good
visual quality. We depend on libt1 to rasterize the fonts
for use in images.}
};
$formats{'TT-fonts'}=
{
order=>'31',
def=>'HAVE_LIBTT',
inccheck=>sub { -e catfile($_[0], 'freetype.h')
&& !-e catfile($_[0], 'fterrors.h') },
libcheck=>sub { $_[0] eq "libttf$aext" or $_[0] eq "libttf.$lext" },
libfiles=>'-lttf',
objfiles=>'',
code => \&freetype1_probe,
docs=>q{
Truetype fonts are scalable fonts. They can include
kerning and hinting information and generally yield good
visual quality esp on low resultions. The freetype library is
used to rasterize for us. The only drawback is that there
are alot of badly designed fonts out there.}
};
$formats{'w32'} = {
order=>40,
def=>'HAVE_WIN32',
inccheck=>sub { -e catfile($_[0], 'windows.h') },
libcheck=>sub { lc $_[0] eq 'gdi32.lib'
|| lc $_[0] eq 'libgdi32.a' },
libfiles=>$^O eq 'cygwin' ? '-lgdi32' : '',
objfiles=>'win32.o',
docs => <<DOCS
Uses the Win32 GDI for rendering text.
This currently only works on under normal Win32 and cygwin.
DOCS
};
$formats{'freetype2'} = {
order=>'29',
def=>'HAVE_FT2',
inccheck=>sub { -e catfile($_[0], 'ft2build.h') },
libcheck=>sub { $_[0] eq "libfreetype$aext" or $_[0] eq "libfreetype.$lext" },
libfiles=>'-lfreetype',
objfiles=>'freetyp2.o',
docs=><<DOCS,
Freetype 2 supports both Truetype and Type 1 fonts, both of which are
scalable. It also supports a variety of other fonts.
DOCS
code => \&freetype2_probe,
};
# Make fix indent
for (keys %formats) { $formats{$_}->{docs} =~ s/^\s+/ /mg; }
}
sub gen {
my $V = $ENV{$_[0]};
defined($V) ? $V : "";
}
# Get information from environment variables
sub getenv {
($VERBOSE,
$INCPATH,
$LIBPATH,
$NOLOG,
$DEBUG_MALLOC,
$MANUAL,
$CFLAGS,
$LFLAGS,
$DFLAGS) = map { gen $_ } qw(IM_VERBOSE
IM_INCPATH
IM_LIBPATH
IM_NOLOG
IM_DEBUG_MALLOC
IM_MANUAL
IM_CFLAGS
IM_LFLAGS
IM_DFLAGS);
}
sub make_imconfig {
my ($defines) = @_;
open CONFIG, "> imconfig.h"
or die "Cannot create imconfig.h: $!\n";
print CONFIG <<EOS;
/* This file is automatically generated by Makefile.PL.
Don't edit this file, since any changes will be lost */
#ifndef IMAGER_IMCONFIG_H
#define IMAGER_IMCONFIG_H
EOS
for my $define (@$defines) {
if ($define->[2]) {
print CONFIG "\n/*\n $define->[2]\n*/\n\n";
}
print CONFIG "#define $define->[0] $define->[1]\n";
}
print CONFIG "\n#endif\n";
close CONFIG;
}
# use pkg-config to probe for libraries
# works around the junk that pkg-config dumps on FreeBSD
sub _pkg_probe {
my ($pkg) = @_;
is_exe('pkg-config') or return;
my $redir = $^O eq 'MSWin32' ? '' : '2>/dev/null';
!system("pkg-config $pkg --exists $redir");
}
# probes for freetype1 by scanning @incs for the includes and
# @libs for the libs. This is done separately because freetype's headers
# are stored in a freetype or freetype1 directory under PREFIX/include.
#
# we could find the files with the existing mechanism, but it won't set
# -I flags correctly.
#
# This could be extended to freetype2 too, but freetype-config catches
# that
sub freetype1_probe {
my ($frm, $frmkey) = @_;
my $found_inc;
INCS:
for my $inc (@incs) {
for my $subdir (qw/freetype freetype1/) {
my $path = File::Spec->catfile($inc, $subdir, 'freetype.h');
-e $path or next;
$path = File::Spec->catfile($inc, $subdir, 'fterrors.h');
-e $path and next;
$found_inc = File::Spec->catdir($inc, $subdir);
last INCS;
}
}
my $found_lib;
LIBS:
for my $lib (@libs) {
my $a_path = File::Spec->catfile($lib, "libttf$aext");
my $l_path = File::Spec->catfile($lib, "libttf.$lext");
if (-e $a_path || -e $l_path) {
$found_lib = $lib;
last LIBS;
}
}
return unless $found_inc && $found_lib;
printf("%10s: includes %s - libraries %s\n", $frmkey,
($found_inc ? 'found' : 'not found'),
($found_lib ? 'found' : 'not found'));
$frm->{cflags} = "-I$found_inc";
$frm->{libfiles} = "-lttf";
return 1;
}
# probes for freetype2 by trying to run freetype-config
sub freetype2_probe {
my ($frm, $frmkey) = @_;
is_exe('freetype-config') or return;
my $cflags = `freetype-config --cflags`
and !$? or return;
chomp $cflags;
my $lflags = `freetype-config --libs`
and !$? or return;
chomp $lflags;
# before 2.1.5 freetype-config --cflags could output
# the -I options in the wrong order, causing a conflict with
# freetype1.x installed with the same --prefix
#
# can happen iff:
# - both -Iprefix/include and -Iprefix/include/freetype2 are in cflags
# in that order
# - freetype 1.x headers are in prefix/include/freetype
my @incdirs = map substr($_, 2), grep /^-I/, split ' ', $cflags;
if (@incdirs == 2
&& $incdirs[1] eq "$incdirs[0]/freetype2"
&& -e "$incdirs[0]/freetype/freetype.h"
&& -e "$incdirs[0]/freetype/fterrid.h") {
print "** freetype-config provided -I options out of order, correcting\n"
if $VERBOSE;
$cflags = join(' ', grep(!/-I/, split ' ', $cflags),
map "-I$_", reverse @incdirs);
}
$frm->{cflags} = $cflags;
$frm->{libfiles} = $lflags;
printf "%10s: configured via freetype-config\n", $frmkey;
return 1;
}
# probes for libpng via pkg-config
sub png_probe {
my ($frm, $frmkey) = @_;
is_exe('pkg-config') or return;
my $config;
for my $check_conf (qw(libpng libpng12 libpng10)) {
if (_pkg_probe($check_conf)) {
$config = $check_conf;
last;
}
}
$config or return;
my $cflags = `pkg-config $config --cflags`
and !$? or return;
my $lflags = `pkg-config $config --libs`
and !$? or return;
chomp $cflags;
chomp $lflags;
$frm->{cflags} = $cflags;
$frm->{libfiles} = $lflags;
printf "%10s: configured via `pkg-config $config ...`\n", $frmkey;
return 1;
}
sub catfile {
return File::Spec->catfile(@_);
}
sub is_exe {
my ($name) = @_;
for my $dir (File::Spec->path) {
-x catfile($dir, "$name$Config{_exe}")
and return 1;
}
return;
}
sub usage {
print STDERR <<EOS;
Usage: $0 [--enable feature1,feature2,...] [other options]
$0 [--disable feature1,feature2,...] [other options]
$0 --help
Possible feature names are:
png gif ungif jpeg tiff T1-fonts TT-fonts freetype2
Other options:
--verbose | -v
Verbose library probing (or set IM_VERBOSE in the environment)
--nolog
Disable logging (or set IM_NOLOG in the environment)
--incpath dir
Add to the include search path
--libpath dir
Add to the library search path
--noprobe
Don't use pkg-config or freetype2-config to probe for freetype2 and libpng
EOS
exit 1;
}
# generate the PM MM argument
# I'd prefer to modify the public version, but there doesn't seem to be
# a public API to do that
sub gen_PM {
my %pm;
my $instbase = '$(INST_LIBDIR)';
# first the basics, .pm and .pod files
$pm{"Imager.pm"} = "$instbase/Imager.pm";
my $mani = maniread();
for my $filename (keys %$mani) {
if ($filename =~ m!^lib/! && $filename =~ /\.(pm|pod)$/) {
(my $work = $filename) =~ s/^lib//;
$pm{$filename} = $instbase . $work;
}
}
# need the typemap
$pm{typemap} = $instbase . '/Imager/typemap';
# and the core headers
for my $filename (keys %$mani) {
if ($filename =~ /^\w+\.h$/) {
$pm{$filename} = $instbase . '/Imager/include/' . $filename;
}
}
# and the generated header
$pm{"imconfig.h"} = $instbase . '/Imager/include/imconfig.h';
\%pm;
}
sub make_metafile {
my ($opts) = @_;
# extract the version
my $version = MM->parse_version($opts->{VERSION_FROM})
or die "Could not extract version number from $opts->{VERSION_FROM}\n";
my $meta = <<YAML;
--- #YAML:1.0
name: $opts->{NAME}
version: $version
version_from: $opts->{VERSION_FROM}
author: $opts->{AUTHOR}
abstract: $opts->{ABSTRACT}
installdirs: site
YAML
if (keys %{$Recommends{$opts->{NAME}}}) {
$meta .= "recommends:\n";
while (my ($module, $version) = each %{$Recommends{$opts->{NAME}}}) {
$meta .= " $module: $version\n";
}
}
$meta .= <<YAML;
license: perl
dynamic_config: 1
distribution_type: module
generated_by: $opts->{NAME} version $version
YAML
my $save_meta;
if (open META, "< META.yml") {
my $old_meta = do { local $/; <META> };
close META;
$save_meta = $old_meta ne $meta;
}
else {
++$save_meta;
}
if ($save_meta) {
print "Updating META.yml\n";
open META, "> META.yml" or die "Cannot create META.yml: $!";
print META $meta;
close META;
}
}