#ifdef LISP_FEATURE_STACK_GROWS_DOWNWARD_NOT_UPWARD
#error "!C_STACK_IS_CONTROL_STACK and STACK_GROWS_DOWNWARD_NOT_UPWARD is not supported"
#endif
#ifdef LISP_FEATURE_STACK_GROWS_DOWNWARD_NOT_UPWARD
#error "!C_STACK_IS_CONTROL_STACK and STACK_GROWS_DOWNWARD_NOT_UPWARD is not supported"
#endif