- if (XMenuAddSelection (FRAME_X_DISPLAY (f),
- menu, lpane, 0, item_data,
- !NILP (enable), help_string)
- == XM_FAILURE)
+ if (lpane == XM_FAILURE
+ || (XMenuAddSelection (FRAME_X_DISPLAY (f),
+ menu, lpane, 0, item_data,
+ !NILP (enable), help_string)
+ == XM_FAILURE))