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      unlink <$ASNMTAP_PATH/results/HEADER.html>;
      unlink <$ASNMTAP_PATH/results/*/HEADER.html>;
      unlink <$ASNMTAP_PATH/results/*/debug/HEADER.html>;
      unlink <$ASNMTAP_PATH/results/*/reports/HEADER.html>;
    }
  }
}

my $intro = <<EOI;
This Build comes with some package that I can install.

We are about to install ASNMTAP::Asnmtap and for your convenience will
provide you with list of modules and prerequisites,  so you'll be able
to choose only modules you need for your configuration.

EOI

if ( $prompt ) {
  ExtUtils::MakeMaker::prompt( $intro . "Press <enter> to see the detailed list." );
} else {
  print "These are the modules that will get installed:\n\n";
}

# This hash will contain a list of all perl modules we would like to explicitly depend upon in our Makefile
my %PREREQ_PM;

# Maintains a cache of what 3rd party modules you have installed
sub has_module {
  my ($module, $version) = @_;

  $version ||= '';
  return ( ( $version =~ /^\*\d{2,2}(?:\d{2,2}(?:\d{2,2})?)?$/ ) ? 2 : ( $has_module_cache { "$module$version" } ||= eval ( "require $module; Exporter::require_version ( '$module', $version ) if ( $version ); 1" ) ) );
}

# Print a single prerequisite to the screen
sub generate_PREREQ_PM {
  my ($feature, $dependency, $modules, $install) = @_;
  my $buffer;
  my $i = 0;

  foreach (keys %$modules) {
    my $detected = has_module ( $_, $modules->{$_} );

    $buffer .= sprintf ( "%-24s [%s] %-32s %-8s\n", ( $i++ ? '' : $feature), ($detected >= 2 ? '+' : ( $detected ? '*' : ' ') ), $_ . ( $modules->{ $_ } and $modules->{ $_ } !~ /^\*\d{2,2}(?:\d{2,2}(?:\d{2,2})?)?$/ ? " (v$modules->{$_})" : '' ), ( $i...
  }

  return $buffer;
}

# Print the entire prerequisites table
sub generate_PREREQ_PM_table {
  my $buffer = sprintf ( "%-24s %-36s %-8s\n", 'Feature', 'Prerequisites', 'Install?' );
  $buffer   .= sprintf ( "%s %s %s\n","-" x 24,"-" x 36,"-" x 8 );
  foreach my $prerequisites ( @prerequisites ) { $buffer .= generate_PREREQ_PM ( @$prerequisites[1..4] ); }
  $buffer   .= "\n<- An asterix [*] indicates if the module is currently installed.\n";
  return $buffer;
}

# Update the entire prerequisites table
sub update_prerequisites_table {
  my ($u_level, $u_default) = @_;

  return if ( $u_default > 2 );

  my ($action, $u1, $u2, $u3);
  ($u1, $u2, $u3) = $u_level =~ /^\*(\d{2,2})(?:(\d{2,2})(\d{2,2})?)?$/;

  if ( defined $u3 ) {
    return unless ( $u_default );  $action = 3;
  } elsif ( defined $u2 ) {
    return if ( $u_default );      $action = 2;
  } elsif ( defined $u1 ) {
    return unless ( $u1 eq '00' ); $action = 1;
  } else {
    return;                        $action = 0;
  }

  foreach my $prerequisite ( @prerequisites ) {
    my ($level, $default) = ( @{$prerequisite}[0], @{$prerequisite}[4] );
    if ( $action == 1 and $u_level eq $level ) { @{$prerequisite}[4] = 2; last; }
    next if ( $default >= 2 );

    if ( $u_level ne $level ) {
      if ( $u_default ) {
        next unless ( $action == 3 and length($u_level) == 7 and length($level) == 5 and $u_level =~ /^$level/ );
      } else {
        next unless ( $action == 2 and length($u_level) == 5 and length($level) == 7 and $level =~ /^$u_level/ );
      }
    }

    @{$prerequisite}[4] = $u_default;
  }
}

# Initialize the entire prerequisites table
foreach my $prerequisites ( @prerequisites ) { update_prerequisites_table( @$prerequisites[0], @$prerequisites[4] ); }

my $proceed = 0;

do {
  print "\n". generate_PREREQ_PM_table() ."\n";
  $proceed = ( $prompt ? ExtUtils::MakeMaker::prompt( "Do you want to proceed with this configuration?" => 'yes' ) =~ /^\s*y/i : 1 );
  print "\nActivate test:\n" if ($proceed);
  %PREREQ_PM = ();

  foreach my $prerequisite ( @prerequisites ) {
    my ($level, $feature, $dependency, $modules, $default) = @{$prerequisite}[0..4];
    next unless ( $dependency ne '' );

    unless ( $proceed || $default >= 2 ) {
      $default = ( ( ExtUtils::MakeMaker::prompt( "Do you plan to use ${feature}?" => ( $default ? 'yes' : 'no' ) ) =~ /^\s*(y)/i ) ? 1 : 0 );
      @{$prerequisite}[4] = $default;
    }

    update_prerequisites_table( $level, $default );

    if ( $proceed and ( $default == 1 || $default == 2 ) ) {
      if ( $dependency =~ /^ASNMTAP::Asnmtap::/ ) {
        my $t = uc($');
        $t =~ s/::/_/g;