anchor.diff:  (def-type-method from-alien-form (form))
   (def-type-method cleanup-form (form)
     "Creates a form to clean up after the alien call has finished.")
  +(def-type-method callback-from-alien-form (form))
  +(def-type-method callback-cleanup-form (form))
   
   (def-type-method to-alien-function ())
   (def-type-method from-alien-function ())
  
positive.code: (defmethod cleanup-function ((type t) &rest args)
    (declare (ignore type args))
    #'identity)
  
  (defmethod destroy-function ((type t) &rest args)
    (declare (ignore type args))
  
negative.code: ;; TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  ;; SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  
  ;; $Id: ffi.lisp,v 1.24 2006-02-19 19:17:45 espen Exp $
  
  (in-package "GLIB")
  
  