- scm_info_frame *frames; /* Info frames */
- unsigned int length; /* Stack length */
- unsigned int tail_length;
- scm_info_frame tail[1];
-} scm_stack;
+ scm_info_frame_t *frames; /* Info frames */
+ unsigned long length; /* Stack length */
+ unsigned long tail_length;
+ scm_info_frame_t tail[1];
+} scm_stack_t;
+
+#if (SCM_DEBUG_DEPRECATED == 0)
+# define scm_info_frame scm_info_frame_t
+# define scm_stack scm_stack_t
+#endif