anchor.diff:  ;;; apparently no supported by ABCL as of June 2009.
   
   (defmacro %defcallback (name rettype arg-names arg-types body
  -                        &key convention)
  +                        &key calling-convention)
     (warn "callback support unimplemented"))
   
   (defun %callback (name)
  
positive.code: ;;; cffi-abcl.lisp --- CFFI-SYS implementation for ABCL/JNA.
  ;;;
  ;;; Copyright (C) 2009, Luis Oliveira  <loliveira@common-lisp.net>
  ;;;
  ;;; Permission is hereby granted, free of charge, to any person
  ;;; obtaining a copy of this software and associated documentation
  
negative.code: 
  ;;; This implementation requires the Java Native Access (JNA) library.
  ;;; <http://jna.dev.java.net/>
  ;;;
  ;;; JNA may be automatically loaded into the current JVM process from
  ;;; abcl-1.1.0-dev via
  ;;;
  ;;;   (require 'abcl-contrib)
  ;;;   (require 'jna)
  
  (require 'abcl-contrib)
  (require 'jna)
  
  ;;; This is a preliminary version that will have to be cleaned up,
  ;;; optimized, etc. Nevertheless, it passes all of the relevant CFFI
  ;;; tests except MAKE-POINTER.HIGH. Shareable Vectors are not
  ;;; implemented yet.
  
  ;;;# Administrivia
  
  