anchor.diff:    * PROTO_HDRS- Name of the variable that will store the .pb.h files.
     * AddressBook.proto - The .proto file to generate code from.
   
  -[[generated-files]]
  -Generated Files
  -^^^^^^^^^^^^^^^
  +## Generated Files
   
   After the `PROTOBUF_GENERATE_CPP` function is called, you will have the above
   mentioned variables available. These will be marked as the output to a custom command
  
positive.code:   * CMakeLists.txt - Contains the CMake commands you wish to run
    * main.cpp - The source file from the protobuf example.
  
  [[requirements]]
  Requirements
  ~~~~~~~~~~~~
  
  This example requires the protocol buffers binary and libraries to be installed.
  
  
negative.code: autogenerated again. However, if no changes are made to the .proto file and you re-run
  make, then nothing will be done.
  
  # Building the Example
  
  [source,bash]
  ----
  