anchor.diff:  	   #:xunion-tag
   	   #:xunion-val
   
  -	   ;; local type definitions
  +	   ;; functions for type definitions
  +	   #:defreader
  +	   #:defwriter
   	   #:with-reader
   	   #:with-writer
   
  
positive.code: 	   #:defxunion
  	   #:defxenum
  	   #:defxstruct	   
  	   #:defreader
  	   #:defwriter
  	   #:defxtype*
  	   #:read-xtype
  	   #:write-xtype
  
  	   ;; enums/unions
  	   #:enum
  
negative.code: 	   ;; server
  	   #:make-rpc-server
  	   #:start-rpc-server
  	   #:run-rpc-server
  	   #:stop-rpc-server
  	   
  	   ;; specials that are binded in the context of a handler
  