--- libmalloc/libmalloc-715.100.22/include/malloc/_ptrcheck.h
+++ libmalloc/libmalloc-521.100.59/include/malloc/_ptrcheck.h
@@ -31,9 +31,7 @@
 #define __single
 #define __unsafe_indexable
 #define __counted_by(N)
-#define __counted_by_or_null(N)
 #define __sized_by(N)
-#define __sized_by_or_null(N)
 #define __ended_by(E)
 #define __terminated_by(T)
 #define __null_terminated