Fli and pointers to pointers

Hi. Given a C struct like this:

typedef struct _hobbit {
    int age;
    int name_count;
    char **legal_names;
} hobbit_t, *hobbit;

There's a C function in our dll that allocates an instance of hobbit. I
don't know how to access the legal_names member in our corresponding Lisp
type:

(fli:define-c-struct hobbit-struct
  (age :int)
  (name_count :int)
  (legal-names (:c-array :ef-mb-string)))

(fli:define-c-typedef hobbit-type
  (:struct hobbit-struct))

(fli:define-c-typedef hobbit
  (:pointer hobbit-type))

Given an instance of hobbit as allocated by the C library, if I try:

(setf *hobbit* (make-hobbit))

(fli:with-foreign-slots (legal-names) *hobbit*
  (print legal-names))

I get this:

Error: Attempted to dereference a pointer to aggregate type (:C-ARRAY
:EF-MB-STRING).
  1 (abort) Return to level 0.
  2 Return to top loop level 0.

The C library allocates an array of strings for legal-names. I want to set
the contents of this array from Lisp. How should I do this?

Thanks...

David E. Young
Bloodhound Software, Inc.

For wisdom is more precious than rubies,
and nothing you desire can compare with her.
  -- Prov. 8:11

"But all the world understands my language."
  -- Franz Josef Haydn (1732 - 1809)


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