Index: generic/nsf.h
===================================================================
diff -u -r3f78bdd8db9ec3b80bd2a280a5f148ad81d7c9f5 -r81788340d06828bb7131be38cc31858cf842612e
--- generic/nsf.h	(.../nsf.h)	(revision 3f78bdd8db9ec3b80bd2a280a5f148ad81d7c9f5)
+++ generic/nsf.h	(.../nsf.h)	(revision 81788340d06828bb7131be38cc31858cf842612e)
@@ -108,6 +108,10 @@
  *
 #define NSF_MEM_TRACE 1
 #define NSF_MEM_COUNT 1
+ *
+ * Activate/deactivate valgrind support
+ *
+#define NSF_VALGRIND 1
  */
 
 /* Activate bytecode support