Index: generic/nsfInt.h
===================================================================
diff -u -r459516f92aed8b1287b3824d7dd39f58859dea4d -rbaee0c34119f4b237787204b8c3e64bc04c05782
--- generic/nsfInt.h	(.../nsfInt.h)	(revision 459516f92aed8b1287b3824d7dd39f58859dea4d)
+++ generic/nsfInt.h	(.../nsfInt.h)	(revision baee0c34119f4b237787204b8c3e64bc04c05782)
@@ -1396,4 +1396,7 @@
 #define NsfMax(a,b) ((a) > (b) ? a : b)
 #define NsfMin(a,b) ((a) < (b) ? a : b)
 
+#define NsfCallStackFindLastInvocation(interp, offset, framePtrPtr) \
+  NsfCallStackFindCallingContext((interp), (offset), (framePtrPtr), NULL)
+
 #endif /* _nsf_int_h_ */