anchor.diff:  
   (defpackage #:protobuf-system
     (:documentation "System definitions for protocol buffer code.")
  -  (:use #:common-lisp
  -        #:asdf))
  +  (:use #:common-lisp #:asdf))
   
   (in-package #:protobuf-system)
   
  
positive.code: buffer messages."))
  
  ;; Machine-generated protocol buffer Lisp files cannot be compiled or loaded
  ;; unless certain files have previously been loaded.  Some are required for
  ;; package definitions, while others define in-line functions.
  
  (defmethod component-depends-on ((op compile-op) (component cl-pb-impl))
    (append
     '((load-op "package" "base" "protocol-buffer" "varint" "wire-format"))
     (call-next-method)))
  
  (defmethod component-depends-on ((op load-op) (component cl-pb-impl))
  
negative.code: 
     (:cl-source-file "package")
  
     #-(or abcl allegro cmu sbcl)
     (:module "sysdep"
      :pathname ""           ; this module's files are not in a subdirectory
  