+#+lispworks
+(defmacro with-cast-pointer ((binding-name pointer type) &body body)
+ `(fli:with-coerced-pointer (,binding-name
+ :type ',(convert-from-uffi-type (eval type) :type))
+ ,pointer
+ ,@body))
+
+#+(or cmu scl sbcl)
+(defmacro with-cast-pointer ((binding-name pointer type) &body body)
+ `(let ((,binding-name
+ (#+(or cmu scl) alien:cast
+ #+sbcl sb-alien:cast
+ ,pointer (* ,(convert-from-uffi-type (eval type) :type)))))
+ ,@body))
+
+#+allegro
+(defmacro with-cast-pointer ((binding-name pointer type) &body body)
+ (declare (ignore type))
+ `(let ((,binding-name ,pointer))
+ ,@body))
+
+#-(or lispworks cmu scl sbcl allegro)
+(defmacro with-cast-pointer ((binding-name pointer type) &body body)
+ (declare (ignore binding-name pointer type))
+ '(error "WITH-CAST-POINTER not (yet) implemented for ~A"
+ (lisp-implementation-type)))
+
+(defmacro def-foreign-var (names type module)
+ #-lispworks (declare (ignore module))
+ (let ((foreign-name (if (atom names) names (first names)))
+ (lisp-name (if (atom names) (make-lisp-name names) (second names)))
+ (var-type (convert-from-uffi-type type :foreign-var)))
+ #+(or cmu scl)
+ `(alien:def-alien-variable (,foreign-name ,lisp-name) ,var-type)
+ #+sbcl
+ `(sb-alien:define-alien-variable (,foreign-name ,lisp-name) ,var-type)
+ #+allegro
+ `(ff:def-foreign-variable (,lisp-name ,foreign-name) :convention :c
+ :type ,var-type)
+ #+lispworks
+ (let ((temp-name (gensym)))
+ `(progn
+ (fli:define-foreign-variable (,temp-name ,foreign-name) :type ,var-type :module ,module)
+ (define-symbol-macro ,lisp-name (,temp-name))))
+ #-(or allegro cmu scl sbcl lispworks)
+ `(define-symbol-macro ,lisp-name
+ '(error "DEF-FOREIGN-VAR not (yet) defined for ~A"
+ (lisp-implementation-type)))))