Index: generic/nsfInt.h
===================================================================
diff -u -r9d1dfb6417294dbdc13ce4d249931055f7bd5ef8 -r56771aadda62cc84f8631070e54c87e9f2e26c8b
--- generic/nsfInt.h	(.../nsfInt.h)	(revision 9d1dfb6417294dbdc13ce4d249931055f7bd5ef8)
+++ generic/nsfInt.h	(.../nsfInt.h)	(revision 56771aadda62cc84f8631070e54c87e9f2e26c8b)
@@ -821,8 +821,8 @@
 int NsfShadowTclCommands(Tcl_Interp *interp, NsfShadowOperations load)
   nonnull(1);
 
-Tcl_Obj *NsfMethodObj(NsfObject *object, int methodIdx)
-  nonnull(1);
+Tcl_Obj *NsfMethodObj(const NsfObject *object, int methodIdx)
+  nonnull(1) pure;
 
 int NsfReplaceCommandCleanup(Tcl_Interp *interp, Tcl_Obj *nameObj, NsfShadowTclCommandInfo *ti)
   nonnull(1) nonnull(2) nonnull(3);
@@ -1323,7 +1323,7 @@
 
 
 #ifndef HAVE_STRNSTR
-char *strnstr(const char *buffer, const char *needle, size_t buffer_len);
+char *strnstr(const char *buffer, const char *needle, size_t buffer_len) pure;
 #endif
 
 /*