Index: generic/nsfInt.h
===================================================================
diff -u -r69ce13b6fb009cc1faaca2dcce0c956a78d20186 -r987498960e7d4631756991ca6276191407eb0174
--- generic/nsfInt.h	(.../nsfInt.h)	(revision 69ce13b6fb009cc1faaca2dcce0c956a78d20186)
+++ generic/nsfInt.h	(.../nsfInt.h)	(revision 987498960e7d4631756991ca6276191407eb0174)
@@ -252,8 +252,12 @@
 # include <alloca.h>
 #endif
 
-# if !defined(NDEBUG)
-# define ISOBJ(o) (o != NULL && o != (void*)0xdeadbeaf && (o->typePtr ? o->typePtr->name != NULL : 1) && o->length >= -1 && (o->length > 0 ? o->bytes!= NULL : 1) && o->refCount >= 0)
+#if !defined(NDEBUG)
+# if defined(PRE86)
+#  define ISOBJ(o) (o != NULL && o != (void*)0xdeadbeaf && (o->typePtr ? o->typePtr->name != NULL : 1) && o->length >= -1 && (o->length > 0 ? o->bytes!= NULL : 1) && o->refCount >= 0)
+#  else
+#  define ISOBJ(o) (o != NULL && o != (void*)0xdeadbeaf && (o->typePtr ? o->typePtr->name != NULL : 1) && o->length >= -1 && o->refCount >= 0)
+# endif
 #else
 # define ISOBJ(o) (o != NULL)
 #endif