struct ClientSocket;
struct ChanNode;
-#define USERLIST_CALLBACK(NAME) int NAME(UNUSED_ARG(struct ClientSocket *client), UNUSED_ARG(struct ChanNode *chan))
+#define USERLIST_CALLBACK(NAME) void NAME(UNUSED_ARG(struct ClientSocket *client), UNUSED_ARG(struct ChanNode *chan))
typedef USERLIST_CALLBACK(userlist_callback_t);
void recv_whohandler_354(struct ClientSocket *client, char **argv, unsigned int argc);