VLC_EXPORT( void, msg_Unsubscribe, ( msg_subscription_t * ) );
VLC_EXPORT( void, msg_SubscriptionSetVerbosity, ( msg_subscription_t *, const int) );
VLC_EXPORT( void, msg_Unsubscribe, ( msg_subscription_t * ) );
VLC_EXPORT( void, msg_SubscriptionSetVerbosity, ( msg_subscription_t *, const int) );