Sanity Check

Bad idea?
(defmacro letret (return-binding bindings &body body)
  `(let ,(cons return-binding bindings)
     ,@body
     ,(first return-binding)))

(defmacro letret* (return-binding bindings &body body)
  `(let* ,(cons return-binding bindings)
     ,@body
     ,(first return-binding)))

>>16
No, because compiled versions are just a sticked-together version of the actual script and the interpreter itself.
Which is why most free interpreters use the LGPL.