} else {// Reference from global variable etc.add_resolved_referencing_object(___ABSENT);}
$ gscGambit v4.6.9
> (define a "Hello world")> (##resolve-referencing-objects a)(#!unbound #!unbound #!unbound)> (list a)("Hello world")> (##resolve-referencing-objects a)(#!unbound #!unbound #!unbound ("Hello world"))