[imager.git] / Makefile.PL

#!perl -w
use ExtUtils::MakeMaker;
use Cwd;
use Config;
use File::Spec;
use Getopt::Long;

#
# 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

my $help;
my @enable;
my @disable;
my @incpaths;
my @libpaths;
my $noprobe;
GetOptions("help" => \$help,
           "enable=s" => \@enable,
           "disable=s" => \@disable,
           "incpath=s", \@incpaths,
           "libpath=s" => \@libpaths,
           "noprobe" => \$noprobe);

if ($help) {
  usage();
}

if (@enable && @disable) {
  print STDERR "Only --enable or --disable can be used, not both, try --help\n";
  exit 1;
}

getenv();     # get environment variables
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};
}

my @defines;

# 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 (keys %formats) {
  my $frm = $formats{$frmkey};
  push @defines, [ $frm->{def}, 1, "$frmkey available" ];
  $F_LIBS   .= ' '  .$frm->{libfiles};
  $F_OBJECT .= ' '  .$frm->{objfiles};
  $lib_cflags   .= ' '  .$frm->{cflags} if $frm->{cflags};
}

$F_INC  = join ' ', map "-I$_", map / / ? qq{"$_"} : $_, 
  grep !exists $definc{$_}, @incs;
$F_LIBS = join(' ',map "-L$_", map / / ? qq{"$_"} : $_, @libs) . $F_LIBS;

$OSLIBS = '';
$OSDEF  = "-DOS_$^O";

if ($^O eq 'hpux')                { $OSLIBS .= ' -ldld'; }
if (defined $Config{'d_dlsymun'}) { $OSDEF  .= ' -DDLSYMUN'; }

@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);

%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' },
      );

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';
}

make_imconfig(\@defines);

if ($VERBOSE) { print Dumper(\%opts); }
mkdir('testout',0777); # since we cannot include it in the archive.
WriteMakefile(%opts);

exit;


sub MY::postamble {
'
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 <=="
';
}

sub MY::metafile {
  my ($self) = @_;

  my $meta = <<YAML;
--- #YAML:1.0
name: Imager
version: $self->{VERSION}
version_from: $self->{VERSION_FROM}
author: $self->{AUTHOR}
abstract: $self->{ABSTRACT}
installdirs: $self->{INSTALLDIRS}
recommends:
  Parse::RecDescent: 0
license: perl
dynamic_config: 1
distribution_type: module
generated_by: Imager version $self->{VERSION}
YAML
  open META, "> meta.tmp" or die "Cannot create meta.tmp: $!";
  print META $meta;
  close META;
  
  return sprintf "metafile :\n\t\$(CP) meta.tmp META.yml\n";
}

# 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: ";
    $gz = <STDIN>;
    chomp($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 {
  for $frm(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;
  
  my $code = $formats{$frm}{'code'};
  if ($code && !$noprobe) {
    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 (@incs) { 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 {

  @definc{'/usr/include'}=();
  @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);

  @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(/ /, $Config{'libpth'});
  if ($^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/lib/w32api';
  }

  my $lext=$Config{'so'};   # Get extensions of libraries
  my $aext=$Config{'_a'};

  $formats{'jpeg'}={
		    order=>'21',
		    def=>'HAVE_LIBJPEG',
		    inccheck=>sub { -e catfile($_[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=>'',
     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);

  if ($VERBOSE) { print "Verbose mode\n"; require Data::Dumper; import Data::Dumper qw(Dumper);}

  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";
  }

}

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 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;
  
  $frm->{cflags} = $cflags;
  my $lflags = `freetype-config --libs`
    and !$? or return;
  chomp $lflags;
  $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,...] [--incpath ...] [--libpath ...]
       $0 [--disable feature1,feature2,...] [--incpath ...] [--libpath ...]
       $0 --help
Possible feature names are:
  png gif ungif jpeg tiff T1-fonts TT-fonts freetype2
EOS
  exit 1;

}
Commit	Line	Data
ea9e6c3f	1	#!perl -w
02d1d628 AMH	2	use ExtUtils::MakeMaker;
	3	use Cwd;
	4	use Config;
07ea6c21	5	use File::Spec;
37959076	6	use Getopt::Long;
02d1d628	7
02d1d628 AMH	8	#
	9	# IM_INCPATH colon seperated list of paths to extra include paths
	10	# IM_LIBPATH colon seperated list of paths to extra library paths
	11	#
	12	# IM_VERBOSE turns on verbose mode for the library finding and such
	13	# IM_MANUAL to manually select which libraries are used and which not
	14	# IM_ENABLE to programmatically select which libraries are used
	15	# and which are not
	16	# IM_NOLOG if true logging will not be compiled into the module
	17	# IM_DEBUG_MALLOC if true malloc debbuging will be compiled into the module
	18	# do not use IM_DEBUG_MALLOC in production - this slows
	19	# everything down by alot
	20	# IM_CFLAGS Extra flags to pass to the compiler
	21	# IM_LFLAGS Extra flags to pass to the linker
	22	# IM_DFLAGS Extra flags to pass to the preprocessor
f4dbac50	23	# IM_SUPPRESS_PROMPT Suppress the prompt asking about gif support
02d1d628	24
37959076 TC	25	my $help;
	26	my @enable;
	27	my @disable;
	28	my @incpaths;
	29	my @libpaths;
	30	my $noprobe;
	31	GetOptions("help" => \$help,
	32	"enable=s" => \@enable,
	33	"disable=s" => \@disable,
	34	"incpath=s", \@incpaths,
	35	"libpath=s" => \@libpaths,
	36	"noprobe" => \$noprobe);
	37
	38	if ($help) {
	39	usage();
	40	}
	41
	42	if (@enable && @disable) {
	43	print STDERR "Only --enable or --disable can be used, not both, try --help\n";
	44	exit 1;
	45	}
02d1d628 AMH	46
	47	getenv(); # get environment variables
	48	init(); # initialize global data
	49	pathcheck(); # Check if directories exist
	50
37959076 TC	51	if (exists $ENV{IM_ENABLE}) {
	52	my %en = map { $_, 1 } split ' ', $ENV{IM_ENABLE};
	53	for my $key (keys %formats) {
	54	delete $formats{$key} unless $en{$key};
	55	}
	56	}
	57	if (@enable) {
	58	my %en = map { $_ => 1 } map { split /,/ } @enable;
	59	for my $key (keys %formats) {
	60	delete $formats{$key} unless $en{$key};
	61	}
	62	}
	63	elsif (@disable) {
	64	delete @formats{map { split /,/ } @disable};
	65	}
	66
e11d297f TC	67	my @defines;
e11d297f TC	68
02d1d628 AMH	69	# Pick what libraries are used
	70	if ($MANUAL) {
	71	manual();
	72	} else {
	73	automatic();
02d1d628 AMH	74	}
	75
	76	# Make sure there isn't a clash between the gif libraries.
	77	gifcheck();
	78
07ea6c21	79	my $lib_cflags = '';
80c15fc7 TC	80	my $F_LIBS = '';
80c15fc7 TC	81	my $F_OBJECT = '';
e11d297f TC	82	for my $frmkey (keys %formats) {
	83	my $frm = $formats{$frmkey};
	84	push @defines, [ $frm->{def}, 1, "$frmkey available" ];
02d1d628 AMH	85	$F_LIBS .= ' ' .$frm->{libfiles};
02d1d628 AMH	86	$F_OBJECT .= ' ' .$frm->{objfiles};
07ea6c21	87	$lib_cflags .= ' ' .$frm->{cflags} if $frm->{cflags};
02d1d628 AMH	88	}
02d1d628 AMH	89
ea9e6c3f TC	90	$F_INC = join ' ', map "-I$_", map / / ? qq{"$_"} : $_,
	91	grep !exists $definc{$_}, @incs;
	92	$F_LIBS = join(' ',map "-L$_", map / / ? qq{"$_"} : $_, @libs) . $F_LIBS;
02d1d628 AMH	93
	94	$OSLIBS = '';
	95	$OSDEF = "-DOS_$^O";
	96
	97	if ($^O eq 'hpux') { $OSLIBS .= ' -ldld'; }
	98	if (defined $Config{'d_dlsymun'}) { $OSDEF .= ' -DDLSYMUN'; }
	99
9982a307 AMH	100	@objs = qw(Imager.o draw.o polygon.o image.o io.o iolayer.o
9982a307 AMH	101	log.o gaussian.o conv.o pnm.o raw.o feat.o font.o
02d1d628	102	filters.o dynaload.o stackmach.o datatypes.o
2df3535a	103	regmach.o trans2.o quant.o error.o convert.o
261f91c5	104	map.o tags.o palimg.o maskimg.o img16.o rotate.o
77157728	105	bmp.o tga.o rgb.o color.o fills.o imgdouble.o limits.o);
02d1d628 AMH	106
	107	%opts=(
	108	'NAME' => 'Imager',
	109	'VERSION_FROM' => 'Imager.pm',
	110	'LIBS' => "$LFLAGS -lm $OSLIBS $F_LIBS",
e11d297f	111	'DEFINE' => "$OSDEF $CFLAGS",
07ea6c21	112	'INC' => "$lib_cflags $DFLAGS $F_INC",
de2b8bae	113	'OBJECT' => join(' ', @objs, $F_OBJECT),
8746dc75	114	clean => { FILES=>'testout meta.tmp' },
02d1d628 AMH	115	);
02d1d628 AMH	116
29316bdb TC	117	if ($ExtUtils::MakeMaker::VERSION > 6.06) {
29316bdb TC	118	$opts{AUTHOR} = 'Tony Cook <tony@imager.perl.org>, Arnar M. Hrafnkelsson';
ca508100 TC	119	$opts{ABSTRACT} = 'Perl extension for Generating 24 bit Images';
	120	}
	121
e11d297f TC	122	make_imconfig(\@defines);
e11d297f TC	123
02d1d628 AMH	124	if ($VERBOSE) { print Dumper(\%opts); }
	125	mkdir('testout',0777); # since we cannot include it in the archive.
	126	WriteMakefile(%opts);
4dce694d	127
02d1d628 AMH	128	exit;
	129
	130
	131	sub MY::postamble {
	132	'
faa9b3e7	133	dyntest.$(MYEXTLIB) : dynfilt/Makefile
02d1d628 AMH	134	cd dynfilt && $(MAKE) $(PASTHRU)
	135
	136	lib/Imager/Regops.pm : regmach.h regops.perl
	137	$(PERL) regops.perl regmach.h lib/Imager/Regops.pm
e11d297f TC	138
	139	imconfig.h: Makefile.PL
	140	$(ECHO) "imconfig.h out-of-date with respect to $?"
	141	$(PERLRUN) Makefile.PL
	142	$(ECHO) "==> Your Makefile has been rebuilt - re-run your make command <=="
02d1d628 AMH	143	';
	144	}
	145
55932d2a TC	146	sub MY::metafile {
	147	my ($self) = @_;
	148
	149	my $meta = <<YAML;
	150	--- #YAML:1.0
	151	name: Imager
	152	version: $self->{VERSION}
	153	version_from: $self->{VERSION_FROM}
	154	author: $self->{AUTHOR}
	155	abstract: $self->{ABSTRACT}
	156	installdirs: $self->{INSTALLDIRS}
	157	recommends:
	158	Parse::RecDescent: 0
	159	license: perl
	160	dynamic_config: 1
	161	distribution_type: module
	162	generated_by: Imager version $self->{VERSION}
	163	YAML
24099689 TC	164	open META, "> meta.tmp" or die "Cannot create meta.tmp: $!";
	165	print META $meta;
	166	close META;
55932d2a	167
24099689	168	return sprintf "metafile :\n\t\$(CP) meta.tmp META.yml\n";
55932d2a TC	169	}
55932d2a TC	170
02d1d628 AMH	171	# manual configuration of helper libraries
	172
	173	sub manual {
	174	print <<EOF;
	175
	176	Please answer the following questions about
	177	which formats are avaliable on your computer
	178
	179	press <return> to continue
	180	EOF
	181
	182	<STDIN>; # eat one return
	183
2646b26c	184	for my $frm(sort { $formats{$b}{order} <=> $formats{$a}{order} } keys %formats) {
02d1d628 AMH	185	SWX:
	186	if ($formats{$frm}{docs}) { print "\n",$formats{$frm}{docs},"\n\n"; }
	187	print "Enable $frm support: ";
09fd3468	188	$gz = <STDIN>;
02d1d628 AMH	189	chomp($gz);
	190	if ($gz =~ m/^(y\|yes\|n\|no)/i) {
	191	$gz=substr(lc($gz),0,1);
	192	if ($gz eq 'n') {
	193	delete $formats{$frm};
	194	}
	195	} else { goto SWX; }
	196	}
	197	}
	198
	199
	200	# automatic configuration of helper libraries
	201
	202	sub automatic {
	203	for $frm(keys %formats) {
	204	delete $formats{$frm} if !checkformat($frm);
	205	}
	206	}
	207
	208
	209	sub gifcheck {
5f5fe73e	210	if ($formats{'gif'} and $formats{'ungif'}) {
02d1d628 AMH	211	print "ungif and gif can not coexist - removing ungif support\n";
	212	delete $formats{'ungif'};
	213	}
5f5fe73e AMH	214
5f5fe73e AMH	215	RETR:
f4dbac50	216	if (($formats{'gif'} or $formats{'ungif'}) && !$ENV{IM_SUPPRESS_PROMPT}) {
5f5fe73e AMH	217	print <<EOFF;
	218
	219	You have libgif or libungif installed. They are both known to have
	220	bugs. Imager can crash or display other strange behaviour after
	221	reading or writing gif images. Some of the gif tests can even fail
	222	since they stress some parts of the buggy code.
	223
f1967c11 TC	224	libungif 4.1.2 and later is safe. giflib 4.1.3 needs at least one
	225	patch to have all the bugs fixed, see README for details.
	226
	227	Of course it's possible your operating system distributor has patched
	228	all of these problems and you have nothing to worry about.
0b836ff8	229
5f5fe73e AMH	230	Do you want to remove gif support? [Y/n]
	231	EOFF
	232	my $resp = <STDIN>;
	233	chomp($resp);
	234	if ($resp ne "n") {
	235	delete $formats{'gif'};
	236	delete $formats{'ungif'};
09fd3468	237	return;
5f5fe73e AMH	238	}
5f5fe73e AMH	239	}
09fd3468 AMH	240
	241	for my $frm (qw(gif ungif)) {
	242	checkformat($frm) if ($MANUAL and $formats{$frm});
	243	}
	244
02d1d628 AMH	245	my @dirs;
	246	for my $frm (grep $formats{$_}, qw(gif ungif)) {
	247	push(@dirs, @{$formats{$frm}{incdir}}) if $formats{$frm}{incdir};
	248	}
	249	my $minor = 0;
	250	my $major = 0;
	251	FILES: for my $dir (@dirs) {
	252	my $h = "$dir/gif_lib.h";
	253	open H, "< $h" or next;
	254	while (<H>) {
	255	if (/GIF_LIB_VERSION\s+"\sversion\s(\d+)\.(\d+)/i) {
	256	$major = $1;
	257	$minor = $2;
	258	close H;
	259	last FILES;
	260	}
	261	}
	262	close H;
	263	}
	264
	265	# we need the version in a #ifdefable form
4dce694d	266
e11d297f TC	267	push @defines, [ IM_GIFMAJOR, $major, "Parsed giflib version" ];
e11d297f TC	268	push @defines, [ IM_GIFMINOR, $minor ];
02d1d628 AMH	269	}
	270
	271
	272	sub gd {
	273	my($path,$chk)=@_;
	274
	275	# print "checking path $path\n";
	276	if ( !opendir(DH,$path) ) {
	277	warn "Cannot open dir $path: $!\n";
	278	return;
	279	}
	280	my @l=grep { $chk->($_) } readdir(DH);
	281	# print @l;
	282	close(DH);
	283	return map $path, @l;
	284	}
	285
	286
	287	sub checkformat {
	288	my $frm=shift;
37959076	289
07ea6c21	290	my $code = $formats{$frm}{'code'};
37959076	291	if ($code && !$noprobe) {
07ea6c21 TC	292	return 1 if $code->($formats{$frm}, $frm);
	293	}
	294
02d1d628 AMH	295	my $libchk=$formats{$frm}{'libcheck'};
	296	my $incchk=$formats{$frm}{'inccheck'};
	297
	298	my @l;
	299	for my $lp (@libs) {
	300	push(@l, gd($lp,$libchk));
	301	}
	302
	303	my @i;
	304	for my $ip (@incs) {
f8e9bc07	305	push(@i, $ip) if $incchk->($ip,$frm);
02d1d628 AMH	306	}
	307
	308	printf("%10s: includes %s - libraries %s\n",$frm,(@i?'found':'not found'),(@l?'found':'not found'));
	309	$formats{$frm}{incdir} = \@i;
	310	$formats{$frm}{libdir} = \@l;
	311	return scalar(@i && @l);
	312	}
	313
	314
02d1d628 AMH	315	sub pathcheck {
	316	if ($VERBOSE) {
	317	print "pathcheck\n";
	318	print " Include paths:\n";
	319	for (@incs) { print $_,"\n"; }
	320	}
3a6bb91b	321	@incs=grep { -d $_ && -r _ && -x _ or ( print(" $_ doesnt exist or is unaccessible - removed.\n"),0) } @incs;
02d1d628 AMH	322
	323	if ($VERBOSE) {
	324	print "\nLibrary paths:\n";
	325	for (@incs) { print $_,"\n"; }
	326	}
3a6bb91b	327	@libs=grep { -d $_ && -r _ && -x _ or ( print(" $_ doesnt exist or is unaccessible - removed.\n"),0) } @libs;
02d1d628 AMH	328	print "\ndone.\n";
	329	}
	330
	331
	332	# Format data initialization
	333
	334	# format definition is:
	335	# defines needed
	336	# default include path
	337	# files needed for include (boolean perl code)
	338	# default lib path
	339	# libs needed
	340	# files needed for link (boolean perl code)
	341	# object files needed for the format
	342
	343
	344	sub init {
	345
	346	@definc{'/usr/include'}=();
37959076 TC	347	@incs=(split(/\Q$Config{path_sep}/, $INCPATH),
37959076 TC	348	map { split /\Q$Config{path_sep}/} @incpaths );
2646b26c	349	if ($Config{locincpth}) {
6552acfe	350	push @incs, grep -d, split ' ', $Config{locincpth};
2646b26c	351	}
88a763e2 TC	352	if ($^O =~ /win32/i && $Config{cc} =~ /\bcl\b/i) {
88a763e2 TC	353	push(@incs, split /;/, $ENV{INCLUDE}) if exists $ENV{INCLUDE};
2646b26c	354	}
6552acfe	355	push @incs, grep -d,
2646b26c TC	356	qw(/sw/include
	357	/usr/include/freetype2
	358	/usr/local/include/freetype2
	359	/usr/local/include/freetype1/freetype
37959076	360	/usr/include /usr/local/include /usr/include/freetype
2646b26c TC	361	/usr/local/include/freetype);
2646b26c TC	362
37959076 TC	363	@libs= ( split(/\Q$Config{path_sep}/,$LIBPATH),
37959076 TC	364	map { split /\Q$Config{path_sep}/} @libpaths );
2646b26c	365	if ($Config{loclibpth}) {
6552acfe	366	push @libs, grep -d, split ' ', $Config{loclibpth};
2646b26c	367	}
6552acfe	368	push @libs, grep -d, qw(/sw/lib), split(/ /, $Config{'libpth'});
2646b26c	369	if ($^O =~ /win32/i && $Config{cc} =~ /\bcl\b/i) {
88a763e2 TC	370	push(@libs, split /;/, $ENV{LIB}) if exists $ENV{LIB};
88a763e2 TC	371	}
faa9b3e7 TC	372	if ($^O eq 'cygwin') {
	373	push(@libs, '/usr/lib/w32api') if -d '/usr/lib/w32api';
	374	push(@incs, '/usr/include/w32api') if -d '/usr/lib/w32api';
	375	}
02d1d628	376
2646b26c TC	377	my $lext=$Config{'so'}; # Get extensions of libraries
	378	my $aext=$Config{'_a'};
	379
02d1d628 AMH	380	$formats{'jpeg'}={
	381	order=>'21',
	382	def=>'HAVE_LIBJPEG',
f8e9bc07	383	inccheck=>sub { -e catfile($_[0], 'jpeglib.h') },
50ee6f9c	384	libcheck=>sub { $_[0] eq "libjpeg$aext" or $_ eq "libjpeg.$lext" },
02d1d628 AMH	385	libfiles=>'-ljpeg',
	386	objfiles=>'jpeg.o',
	387	docs=>q{
	388	In order to use jpeg with this module you need to have libjpeg
	389	installed on your computer}
	390	};
	391
	392	$formats{'tiff'}={
	393	order=>'23',
	394	def=>'HAVE_LIBTIFF',
f8e9bc07	395	inccheck=>sub { -e catfile($_[0], 'tiffio.h') },
76c8a0a4	396	libcheck=>sub { $_[0] eq "libtiff$aext" or $_ eq "libtiff.$lext" },
02d1d628 AMH	397	libfiles=>'-ltiff',
	398	objfiles=>'tiff.o',
	399	docs=>q{
	400	In order to use tiff with this module you need to have libtiff
	401	installed on your computer}
	402	};
	403
	404	$formats{'png'}={
	405	order=>'22',
	406	def=>'HAVE_LIBPNG',
f8e9bc07	407	inccheck=>sub { -e catfile($_[0], 'png.h') },
88a763e2	408	libcheck=>sub { $_[0] eq "libpng$aext" or $_[0] eq "libpng.$lext" },
02d1d628 AMH	409	libfiles=>'-lpng -lz',
	410	objfiles=>'png.o',
	411	docs=>q{
	412	Png stands for Portable Network Graphics and is intended as
	413	a replacement for gif on the web. It is patent free and
07ea6c21 TC	414	is recommended by the w3c, you need libpng to use these formats},
07ea6c21 TC	415	code => \&png_probe,
02d1d628 AMH	416	};
	417
	418	$formats{'gif'}={
	419	order=>'20',
	420	def=>'HAVE_LIBGIF',
f8e9bc07	421	inccheck=>sub { -e catfile($_[0], 'gif_lib.h') },
e02451e0	422	libcheck=>sub { $_[0] eq "libgif$aext" or $_[0] eq "libgif.$lext" },
02d1d628 AMH	423	libfiles=>'-lgif',
	424	objfiles=>'gif.o',
	425	docs=>q{
	426	gif is the de facto standard for webgraphics at the moment,
	427	it does have some patent problems. If you have giflib and
	428	are not in violation with the unisys patent you should use
	429	this instead of the 'ungif' option. Note that they cannot
	430	be in use at the same time}
	431	};
	432
	433	$formats{'ungif'}={
	434	order=>'21',
	435	def=>'HAVE_LIBGIF',
f8e9bc07	436	inccheck=>sub { -e catfile($_[0], 'gif_lib.h') },
e02451e0	437	libcheck=>sub { $_[0] eq "libungif$aext" or $_[0] eq "libungif.$lext" },
02d1d628 AMH	438	libfiles=>'-lungif',
	439	objfiles=>'gif.o',
	440	docs=>q{
	441	gif is the de facto standard for webgraphics at the moment,
	442	it does have some patent problems. If you have libungif and
	443	want to create images free from LZW patented compression you
	444	should use this option instead of the 'gif' option}
	445	};
	446
	447	$formats{'T1-fonts'}={
	448	order=>'30',
	449	def=>'HAVE_LIBT1',
f8e9bc07	450	inccheck=>sub { -e catfile($_[0], 't1lib.h') },
faa9b3e7	451	libcheck=>sub { $_[0] eq "libt1$aext" or $_[0] eq "libt1.$lext" },
02d1d628 AMH	452	libfiles=>'-lt1',
	453	objfiles=>'',
	454	docs=>q{
	455	postscript t1 fonts are scalable fonts. They can include
	456	ligatures and kerning information and generally yield good
	457	visual quality. We depend on libt1 to rasterize the fonts
	458	for use in images.}
	459	};
	460
f8e9bc07 TC	461	$formats{'TT-fonts'}=
	462	{
	463	order=>'31',
	464	def=>'HAVE_LIBTT',
	465	inccheck=>sub { -e catfile($_[0], 'freetype.h')
	466	&& !-e catfile($_[0], 'fterrors.h') },
	467	libcheck=>sub { $_[0] eq "libttf$aext" or $_[0] eq "libttf.$lext" },
	468	libfiles=>'-lttf',
	469	objfiles=>'',
	470	docs=>q{
	471	Truetype fonts are scalable fonts. They can include
	472	kerning and hinting information and generally yield good
	473	visual quality esp on low resultions. The freetype library is
	474	used to rasterize for us. The only drawback is that there
	475	are alot of badly designed fonts out there.}
02d1d628	476	};
faa9b3e7 TC	477	$formats{'w32'} = {
	478	order=>40,
	479	def=>'HAVE_WIN32',
f8e9bc07	480	inccheck=>sub { -e catfile($_[0], 'windows.h') },
faa9b3e7 TC	481	libcheck=>sub { lc $_[0] eq 'gdi32.lib'
	482	\|\| lc $_[0] eq 'libgdi32.a' },
	483	libfiles=>$^O eq 'cygwin' ? '-lgdi32' : '',
	484	objfiles=>'win32.o',
	485	docs => <<DOCS
	486	Uses the Win32 GDI for rendering text.
	487
	488	This currently only works on under normal Win32 and cygwin.
	489	DOCS
	490	};
	491	$formats{'freetype2'} = {
	492	order=>'29',
	493	def=>'HAVE_FT2',
f8e9bc07	494	inccheck=>sub { -e catfile($_[0], 'ft2build.h') },
faa9b3e7 TC	495	libcheck=>sub { $_[0] eq "libfreetype$aext" or $_[0] eq "libfreetype.$lext" },
	496	libfiles=>'-lfreetype',
	497	objfiles=>'freetyp2.o',
07ea6c21	498	docs=><<DOCS,
faa9b3e7	499	Freetype 2 supports both Truetype and Type 1 fonts, both of which are
f8e9bc07	500	scalable. It also supports a variety of other fonts.
faa9b3e7	501	DOCS
07ea6c21	502	code => \&freetype2_probe,
faa9b3e7	503	};
02d1d628 AMH	504	# Make fix indent
	505	for (keys %formats) { $formats{$_}->{docs} =~ s/^\s+/ /mg; }
	506	}
	507
	508
	509
	510	sub gen {
	511	my $V = $ENV{$_[0]};
	512	defined($V) ? $V : "";
	513	}
	514
	515
	516	# Get information from environment variables
	517
	518	sub getenv {
	519
	520	($VERBOSE,
	521	$INCPATH,
	522	$LIBPATH,
	523	$NOLOG,
	524	$DEBUG_MALLOC,
	525	$MANUAL,
	526	$CFLAGS,
	527	$LFLAGS,
	528	$DFLAGS) = map { gen $_ } qw(IM_VERBOSE
	529	IM_INCPATH
	530	IM_LIBPATH
	531	IM_NOLOG
	532	IM_DEBUG_MALLOC
	533	IM_MANUAL
	534	IM_CFLAGS
	535	IM_LFLAGS
	536	IM_DFLAGS);
	537
	538	if ($VERBOSE) { print "Verbose mode\n"; require Data::Dumper; import Data::Dumper qw(Dumper);}
	539
	540	if ($NOLOG) { print "Logging not compiled into module\n"; }
e11d297f TC	541	else {
	542	push @defines, [ IMAGER_LOG => 1, "Logging system" ];
	543	}
02d1d628 AMH	544
02d1d628 AMH	545	if ($DEBUG_MALLOC) {
e11d297f	546	push @defines, [ IMAGER_DEBUG_MALLOC => 1, "Use Imager's DEBUG malloc()" ];
02d1d628 AMH	547	print "Malloc debugging enabled\n";
	548	}
	549
	550	}
07ea6c21	551
e11d297f TC	552	sub make_imconfig {
	553	my ($defines) = @_;
	554
	555	open CONFIG, "> imconfig.h"
	556	or die "Cannot create imconfig.h: $!\n";
	557	print CONFIG <<EOS;
	558	/* This file is automatically generated by Makefile.PL.
	559	Don't edit this file, since any changes will be lost */
	560
	561	#ifndef IMAGER_IMCONFIG_H
	562	#define IMAGER_IMCONFIG_H
	563	EOS
	564	for my $define (@$defines) {
	565	if ($define->[2]) {
	566	print CONFIG "\n/\n $define->[2]\n/\n\n";
	567	}
	568	print CONFIG "#define $define->[0] $define->[1]\n";
	569	}
	570	print CONFIG "\n#endif\n";
	571	close CONFIG;
	572	}
	573
dbc33d8a TC	574	# use pkg-config to probe for libraries
	575	# works around the junk that pkg-config dumps on FreeBSD
	576	sub _pkg_probe {
	577	my ($pkg) = @_;
	578
	579	is_exe('pkg-config') or return;
	580
	581	my $redir = $^O eq 'MSWin32' ? '' : '2>/dev/null';
	582
	583	!system("pkg-config $pkg --exists $redir");
	584	}
	585
07ea6c21 TC	586	# probes for freetype2 by trying to run freetype-config
	587	sub freetype2_probe {
	588	my ($frm, $frmkey) = @_;
	589
	590	is_exe('freetype-config') or return;
	591
	592	my $cflags = `freetype-config --cflags`
	593	and !$? or return;
	594	chomp $cflags;
	595
	596	$frm->{cflags} = $cflags;
	597	my $lflags = `freetype-config --libs`
	598	and !$? or return;
	599	chomp $lflags;
	600	$frm->{libfiles} = $lflags;
	601
	602	printf "%10s: configured via freetype-config\n", $frmkey;
	603
	604	return 1;
	605	}
	606
	607	# probes for libpng via pkg-config
	608	sub png_probe {
	609	my ($frm, $frmkey) = @_;
	610
	611	is_exe('pkg-config') or return;
	612
07ea6c21 TC	613	my $config;
07ea6c21 TC	614	for my $check_conf (qw(libpng libpng12 libpng10)) {
dbc33d8a	615	if (_pkg_probe($check_conf)) {
07ea6c21 TC	616	$config = $check_conf;
	617	last;
	618	}
	619	}
	620	$config or return;
	621
dbc33d8a TC	622	my $cflags = `pkg-config $config --cflags`
	623	and !$? or return;
	624
07ea6c21 TC	625	my $lflags = `pkg-config $config --libs`
	626	and !$? or return;
	627
	628	chomp $cflags;
	629	chomp $lflags;
	630	$frm->{cflags} = $cflags;
	631	$frm->{libfiles} = $lflags;
	632
	633	printf "%10s: configured via `pkg-config $config ...`\n", $frmkey;
	634
	635	return 1;
	636	}
	637
	638	sub catfile {
	639	return File::Spec->catfile(@_);
	640	}
	641
	642	sub is_exe {
	643	my ($name) = @_;
	644
	645	for my $dir (File::Spec->path) {
	646	-x catfile($dir, "$name$Config{_exe}")
	647	and return 1;
	648	}
	649
	650	return;
	651	}
37959076 TC	652
	653	sub usage {
	654	print STDERR <<EOS;
	655	Usage: $0 [--enable feature1,feature2,...] [--incpath ...] [--libpath ...]
	656	$0 [--disable feature1,feature2,...] [--incpath ...] [--libpath ...]
	657	$0 --help
	658	Possible feature names are:
	659	png gif ungif jpeg tiff T1-fonts TT-fonts freetype2
	660	EOS
	661	exit 1;
	662
	663	}