| *RUN-WITH-DEPENDENCY-TRACKING?* boolean |
| This is a runtime switch. Determines whether the system keeps track of object and message dependencies at runtime, thereby enabling the modification of messages and subsequent proper demand-driven recomputation of other messages in the object hierarchy. This switch must be set at the beginning of a session; switching it in the middle of a session (especially from NIL to T) will have unpredictable effects and very likely will result in incorrect operation. Defaults to T. |