$is_win = ($^O =~ /^MS/ || $^O =~ /^OS-2/) ? 1 : 0; # is it Windows?
}
-$clusteraddr = '127.0.0.1';
-$clusterport = 27754;
use Mojo::IOLoop;
# initialisation
#
+$clusteraddr //= '127.0.0.1';
+$clusterport //= 27754;
+
$call = ""; # the callsign being used
$node = ""; # the node callsign being used
$conn = 0; # the connection object for the cluster