unless ( -d "$homeDir/$tmpDir" ) {
        print "Making $homeDir/$tmpDir.\n";
        my $err;
        eval {
            mkpath "$homeDir/$tmpDir", { verbose => 0, mode => 0077, error => \$err };
        };
        if ( $@ or @$err ) {
            die "mkpath failed because: ", $@ || @$err;
        }
    }

    print "Entering $homeDir/$tmpDir.\n";
    chdir "$homeDir/$tmpDir" or die "Cannot chdir to '$homeDir/$tmpDir' because: $!";