extern int log_register_commands(struct command_context_s *cmd_ctx);
extern int log_init(struct command_context_s *cmd_ctx);
extern int set_log_output(struct command_context_s *cmd_ctx, FILE *output);
-extern void keep_alive();
-extern void kept_alive();
+extern void keep_alive(void);
+extern void kept_alive(void);
typedef void (*log_callback_fn)(void *priv, const char *file, int line,
const char *function, const char *string);