anchor.diff:      apt-get -qqy install clang libicu-dev && \
       echo "Installing packages required by rules_webtesting" && \
       apt-get -qqy install python-urllib3 python3-urllib3 && \
  +    echo "Installing packages required by Kythe" && \
  +    apt-get -qqy install bison flex uuid-dev asciidoc graphviz source-highlight && \
  +    echo "Installing packages required by upb" && \
  +    apt-get -qqy install libreadline-dev && \
       apt-get -qqy purge apport && \
       rm -rf /var/lib/apt/lists/*
   
  
positive.code:     apt-get -qqy install clang libicu-dev && \
      echo "Installing packages required by rules_webtesting" && \
      apt-get -qqy install python-urllib3 python3-urllib3 && \
      echo "Installing packages required by Bazel (Ubuntu 14.04 and 16.04 only)" && \
      apt-get -qqy install realpath libssl-dev && \
      apt-get -qqy purge apport && \
  
negative.code:     apt-get -qqy install clang libicu-dev && \
      echo "Installing packages required by rules_webtesting" && \
      apt-get -qqy install python-urllib3 python3-urllib3 && \
      echo "Installing packages required by Kythe" && \
      apt-get -qqy install bison flex uuid-dev asciidoc graphviz source-highlight && \
      echo "Installing packages required by Bazel (Ubuntu 14.04 and 16.04 only)" && \
      apt-get -qqy install realpath libssl-dev && \
      apt-get -qqy purge apport && \
  