| This is a compile-time 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 before comiling all code; 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.
|