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use strict;
use warnings;
use Carp;
$ENV{FTP_PASSIVE}=1;

sub alien_check_installed_version {
  my $self = shift;
  my $version = $self->config_data('system_library_version');
  unless (defined $version) {
    # $self->alien_helper->{pkg_config} ||= 'Alien::Base::PkgConfig->pkg_config_command';
    $version = $self->SUPER::alien_check_installed_version(@_);
    chomp $version;
    $self->config_data('system_library_version', $version);
  }
  $version;
}

sub use_installed_version {
  my $self = shift;
  if (defined (my $type = $self->config_data('install_type'))) {
    return ($type eq 'system');