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: 
     (:cl-source-file "package")
  
  ;    :in-order-to ((compile-op (load-source-op "package"))))
  
     #-(or abcl allegro cmu sbcl)
     (:module "sysdep"
      :pathname ""           ; this module's files are not in a subdirectory
  
negative.code:    (:cl-pb-impl "testproto1" :depends-on ("testproto1-pb"))
     (:cl-pb-impl "testproto2" :depends-on ("testproto2-pb"))
  
     ;; Test protocol buffers and protobuf definitions used by the proto2
     ;; compiler.
  
     (:proto-file "descriptor-pb"
      :pathname "google-protobuf/src/google/protobuf/descriptor")
  