-#undef FRAME_CHAIN
-#define FRAME_CHAIN(thisframe) ((thisframe)->frame? read_memory_integer ((thisframe)->frame, 4): 0)
-
-/* If the chain pointer is zero (either because the saved value fetched
- by FRAME_CHAIN was zero, or because the current FP was zero so FRAME_CHAIN
- never fetched anything), we are at the top of the stack. */
-/* We are guaranteed to have a zero frame pointer at bottom of stack, too. */
-
-#undef FRAME_CHAIN_VALID
-#define FRAME_CHAIN_VALID(chain, thisframe) nonnull_frame_chain_valid (chain, thisframe)
+#undef DEPRECATED_FRAME_CHAIN
+#define DEPRECATED_FRAME_CHAIN(thisframe) ((thisframe)->frame? read_memory_integer ((thisframe)->frame, 4): 0)