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  #try to get configuration info via magick or identify utilities
  my $devnull = devnull();
  my $conf = `magick identify -list Configure 2>$devnull` || `identify -list Configure 2>$devnull`;
  my @delegates = ();
  foreach my $line (split '\n', $conf) {
    next unless $line =~ /^DELEGATES\s+/;
    (undef, @delegates) = split /\s+/, $line;
    last;
  };
  return @delegates;
}

# Compute test specification
my $delegate_tests='t/*.t';
my @tested_delegates = qw//;
my @supported_delegates = AutodetectDelegates();
# find the intersection of tested and supported delegates
my %seen_delegates = ();
$seen_delegates{$_}++ for @supported_delegates;
foreach my $delegate (@tested_delegates) {
  if ( $seen_delegates{$delegate} ) {
    if ( -d "t/$delegate" ) {
      if ( defined($ENV{'DISPLAY'}) && ($^O ne 'MSWin32') ) {
        if ( defined $ENV{'DISPLAY'} ) {
          $delegate_tests .= " t/$delegate/*.t";
        }
        next;
      }
      $delegate_tests .= " t/$delegate/*.t";
    }
  }
}

# defaults for LIBS & INC & CCFLAGS params that we later pass to Writemakefile
my $INC_magick = '-I/usr/local/include/ImageMagick-7 -DMAGICKCORE_HDRI_ENABLE=1 -DMAGICKCORE_QUANTUM_DEPTH=16 -I/usr/include/libxml2 -I"' . $Config{'usrinc'} . '/ImageMagick-7"';
my $LIBS_magick = '-L/usr/local/lib -lMagickCore-7.Q16HDRI -lm -L' . $Config{'archlib'} . '/CORE';
my $CCFLAGS_magick = "$Config{'ccflags'} -I/usr/include/freetype2 -g -O2 -Wall -pthread -DMAGICKCORE_HDRI_ENABLE=1 -DMAGICKCORE_QUANTUM_DEPTH=16";
my $LDFLAGS_magick   = "-L/usr/local/lib -lMagickCore-7.Q16HDRI $Config{'ldflags'} ";
my $LDDLFLAGS_magick = "-L/usr/local/lib -lMagickCore-7.Q16HDRI $Config{'lddlflags'} ";

if (($^O eq 'MSWin32') && ($Config{cc} =~ /gcc/)) {
  my($Ipaths, $Lpaths) = AutodetectWin32gcc();

  #
  # Setup for strawberry perl.
  #
  $INC_magick       = "$Ipaths";
  $LIBS_magick      = "-lMagickCore"; # use here just plain 'MagickCore' no version info
  $CCFLAGS_magick   = "$Config{'ccflags'}";
  $LDFLAGS_magick   = "$Config{'ldflags'} $Lpaths ";
  $LDDLFLAGS_magick = "$Config{'lddlflags'} $Lpaths ";
}

# See lib/ExtUtils/MakeMaker.pm for details of how to influence
# the contents of the Makefile that is written.
WriteMakefile
  (
   # Module description
   'ABSTRACT'	=> 'ImageMagick PERL Extension',

   # Perl module name is Image::Magick
   'NAME'	=> 'Image::Magick',

   # Module author
   'AUTHOR' => 'ImageMagick Studio LLC',

   # Module version
   'VERSION' => '7.1.1',

   # Prerequisite version
   'PREREQ_PM' => {'parent' => '0'},

   # Preprocessor defines
   'DEFINE'	=> ' -D_LARGE_FILES=1 -DHAVE_CONFIG_H',     # e.g., '-DHAVE_SOMETHING'

   # Header search specification and preprocessor flags
   'INC'	=> $INC_magick,

   # C compiler
   #'CC' => 'gcc -std=gnu99 -std=gnu99',

   # C pre-processor flags (e.g. -I & -D options)
   # 'CPPFLAGS' => "$Config{'cppflags'} -DMAGICKCORE_HDRI_ENABLE=1 -DMAGICKCORE_QUANTUM_DEPTH=16 -I/usr/include/libxml2",

   # C compiler flags (e.g. -O -g)
   'CCFLAGS' => $CCFLAGS_magick,

   # Linker
   #'LD' => $Config{'ld'} == $Config{'cc'} ? 'gcc -std=gnu99 -std=gnu99' : $Config{'ld'},

   # Linker flags for building an executable
   'LDFLAGS' =>  $LDFLAGS_magick,

   # Linker flags for building a dynamically loadable module
   'LDDLFLAGS' => $LDDLFLAGS_magick,

   # Library specification
   'LIBS' => [ $LIBS_magick ],

   # Perl binary name (if a Perl binary is built)
   'MAP_TARGET'	=> 'PerlMagick',

   # Let CFLAGS drive optimization flags by setting OPTIMIZE to empty
   # 'OPTIMIZE'	=> '',

   # Use same compiler as ImageMagick
   'PERLMAINCC'	=> ' ',
   'AR' => 'ar',
   'LD' => '',

   # Set Perl installation prefix to ImageMagick installation prefix
   # 'PREFIX'	=> '/usr/local',

   # Include delegate directories in tests
   test	=> { TESTS	=>	$delegate_tests},

   ($Config{'archname'} =~ /-object$/i ? ('CAPI' => 'TRUE') : ()),

   # sane version
   depend => { '$(FIRST_MAKEFILE)' => '$(VERSION_FROM)' }
);