4 files changed, 12 insertions, 8 deletions
diff --git a/generic/tkColor.c b/generic/tkColor.c
index b23255e..baff5e7 100644
--- a/generic/tkColor.c
+++ b/generic/tkColor.c
@@ -62,7 +62,7 @@ const TkObjType tkColorObjType = {
     DupColorObjProc,		/* dupIntRepProc */
     NULL,			/* updateStringProc */
     NULL,			/* setFromAnyProc */
-    TCL_OBJTYPE_V0},
+    TCL_OBJTYPE_V1(TkLengthOne)},
     0
 };
 
diff --git a/generic/tkCursor.c b/generic/tkCursor.c
index 9785470..1bed0c4 100644
--- a/generic/tkCursor.c
+++ b/generic/tkCursor.c
@@ -65,7 +65,7 @@ const TkObjType tkCursorObjType = {
     DupCursorObjProc,		/* dupIntRepProc */
     NULL,			/* updateStringProc */
     NULL,			/* setFromAnyProc */
-    TCL_OBJTYPE_V0},
+    TCL_OBJTYPE_V1(TkLengthOne)},
     0
 };
 
diff --git a/generic/tkInt.h b/generic/tkInt.h
index c293306..6448c92 100644
--- a/generic/tkInt.h
+++ b/generic/tkInt.h
@@ -1069,10 +1069,6 @@ typedef struct {
     size_t version;
 } TkObjType;
 
-#ifndef TCL_OBJTYPE_V0
-#   define TCL_OBJTYPE_V0 /* just empty */
-#endif
-
 MODULE_SCOPE const TkObjType tkBorderObjType;
 MODULE_SCOPE const TkObjType tkBitmapObjType;
 MODULE_SCOPE const TkObjType tkColorObjType;
@@ -1264,6 +1260,7 @@ MODULE_SCOPE void	TkpDrawFrameEx(Tk_Window tkwin, Drawable drawable,
 			    int borderWidth, int relief);
 MODULE_SCOPE void	TkpShowBusyWindow(TkBusy busy);
 MODULE_SCOPE void	TkpHideBusyWindow(TkBusy busy);
+MODULE_SCOPE Tcl_Size	TkLengthOne(Tcl_Obj *);
 MODULE_SCOPE void	TkpMakeTransparentWindowExist(Tk_Window tkwin,
 			    Window parent);
 MODULE_SCOPE void	TkpCreateBusy(Tk_FakeWin *winPtr, Tk_Window tkRef,
diff --git a/generic/tkObj.c b/generic/tkObj.c
index cdea2ed..dcff758 100644
--- a/generic/tkObj.c
+++ b/generic/tkObj.c
@@ -108,10 +108,17 @@ static const TkObjType pixelObjType = {
     DupPixelInternalRep,	/* dupIntRepProc */
     NULL,			/* updateStringProc */
     NULL,			/* setFromAnyProc */
-    TCL_OBJTYPE_V0},
+    TCL_OBJTYPE_V1(TkLengthOne)},
     0
 };
 
+Tcl_Size
+TkLengthOne(
+    TCL_UNUSED(Tcl_Obj *))
+{
+    return 1;
+}
+
 /*
  * The following structure defines the implementation of the "pixel" Tcl
  * object, used for measuring distances. The pixel object remembers its
@@ -124,7 +131,7 @@ static const TkObjType mmObjType = {
     DupMMInternalRep,		/* dupIntRepProc */
     UpdateStringOfMM,		/* updateStringProc */
     NULL,			/* setFromAnyProc */
-    TCL_OBJTYPE_V0},
+    TCL_OBJTYPE_V1(TkLengthOne)},
     0
 };