Index: generic/nsfStack.c
===================================================================
diff -u -N -r745c46b4619253f283fe4285d1f4a83375e3d9d7 -r10f06c20b9fe60805fd945e7caa4133784fa62ad
--- generic/nsfStack.c	(.../nsfStack.c)	(revision 745c46b4619253f283fe4285d1f4a83375e3d9d7)
+++ generic/nsfStack.c	(.../nsfStack.c)	(revision 10f06c20b9fe60805fd945e7caa4133784fa62ad)
@@ -981,7 +981,7 @@
  */
 static Tcl_Obj*
 CallStackMethodPath(Tcl_Interp *interp, Tcl_CallFrame *framePtr) {
-  TCL_OBJC_T elements;
+  ptrdiff_t  elements;
   Tcl_Obj   *resultObj, *methodPathObj = Tcl_NewListObj(0, NULL);
 
   nonnull_assert(interp != NULL);
@@ -1044,7 +1044,8 @@
    *  arguments, reverse the list to obtain the right order.
    */
   if (elements > 1) {
-    TCL_OBJC_T oc, i;
+    TCL_SIZE_T oc;
+    ptrdiff_t  i;
     Tcl_Obj  **ov;
 
     INCR_REF_COUNT(methodPathObj);