- (make-exn-condition+ LOC MSG ARGS [CALL-CHAIN] [ERRNO] [CONDITION-SPEC...]) -> property-conditionprocedure
Returns a composite-condition exn CONDITION-SPEC....
When one-of LOC, MSG, or ARGS is without a useful value in the error context use #f as the actual argument. The optional CALL-CHAIN & ERRNO arguments are detected by type & structure.
When MSG is #f the value "unknown" is used.