+my $debug = $ENV{DEBUG} || 0;
+$|=1;
+
+BEGIN {
+ $SIG{'__WARN__'} = sub {
+ my $level = $1 if $_[0] =~ m/^(#+)/;
+ return if defined($level) && length($level) > $debug;
+
+ warn join("\n", @_);
+ };
+}
+my $listen = shift @ARGV || 'localhost:2389';