GCC 3.2 doesn't accept default parameter in definition _and_ declaration. fixed.
GCC 3.2 doesn't accept default parameter in definition _and_ declaration. fixed.

weidezhang/dht,sit/dht,sit/dht,weidezhang/dht,weidezhang/dht,sit/dht,weidezhang/dht,sit/dht,weidezhang/dht,sit/dht