If you have support for fontconfig font patterns, calling

$image->useFontConfig(0);

seems to turn it on, although the docs suggest that only

$image->useFontConfig(1);

turns it on. Is this a bug? I would like to test if its available with
+out turning it on.

In the code below (which prints 1 on my computer),

Expected - Error because 'AlgerianD' isn't a font path
Got - Fontconfig has been switched on, so 'AlgerianD' works, and the p
+ath given to stringFT is matched with Arial or whatever it finds (?).

use strict;
use warnings;
use GD;
use File::Slurp;

my $self = {};
$self->{img} = new GD::Image(64, 64);
$self->{colourhash} = {rect => '000fff', line => '000000'};
setdefaultcolours($self);
$self->{img}->filledRectangle(0, 0, 64, 64, $self->{colours}->{rect});
print $self->{img}->useFontConfig(0), "\n";
$self->{img}->stringFT($self->{colours}->{line}, '/home/dan/.fonts/ALG
+ERINN.TTF', 20, 0, 32, 32, chr(68)) or die $@;
$self->{img}->stringFT($self->{colours}->{line}, 'AlgerianD', 20, 0, 5
+, 32, chr(68)) or die $@;
create($self, 'out.png');

sub create {
  my ($self, $out) = @_;
  write_file($out, {binmode => ':raw'}, $self->{img}->png) or die "Can
+'t open $out\n";
}


sub setdefaultcolours {
  my $self = shift;
 
  while (my ($key, $value) = each %{$self->{colourhash}}) {
    $self->{colours}->{$key} = setcolour($self, $key, $value);
  }

}

sub setcolour {
  my ($self, $colour, $value) = @_;
  my @a = map { hex $_ } $value =~ /(..)/g;
  if (defined $value) {
    $self->{colours}->{$colour} = $self->{img}->colorAllocate(@a);
    $self->{colourhash}->{$colour} = $value;
  }
  return $self->{colours}->{$colour}
}
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