-# define save_stack_trace(trace, task) do { } while (0)
-# define print_stack_trace(trace) do { } while (0)
+# define save_stack_trace(trace) do { } while (0)
+# define save_stack_trace_tsk(tsk, trace) do { } while (0)
+# define print_stack_trace(trace, spaces) do { } while (0)