anchor.diff:  # Update to a newer version of mono
   RUN apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
   RUN echo "deb http://download.mono-project.com/repo/debian wheezy main" | tee /etc/apt/sources.list.d/mono-xamarin.list
  +RUN echo "deb http://download.mono-project.com/repo/debian wheezy-apache24-compat main" | tee -a /etc/apt/sources.list.d/mono-xamarin.list
  +RUN echo "deb http://download.mono-project.com/repo/debian wheezy-libjpeg62-compat main" | tee -a /etc/apt/sources.list.d/mono-xamarin.list
  +RUN echo "deb http://download.mono-project.com/repo/debian wheezy-libtiff-compat main" | tee -a /etc/apt/sources.list.d/mono-xamarin.list
   
   # Install dependencies
  -RUN apt-get update && apt-get install -y \
  +RUN apt-get update && apt-get -y dist-upgrade && apt-get install -y \
       mono-devel \
       nunit \
       nunit-console \
  
positive.code:   autotools-dev \
    build-essential \
    bzip2 \
    clang \
    clang++ \
    curl \
    gcc \
    git \
    libc++-dev \
    libc6 \
    libc6-dbg \
    libc6-dev \
  
negative.code: 
  ##################
  # C++ dependencies
  RUN apt-get update && apt-get -y install libgflags-dev libgtest-dev libc++-dev clang
  
  #################
  # C# dependencies
  