anchor.diff:  # Environment variables
   ################################################################################
   
  -ENV ICECAST_VERSION 2.4.2
  -ENV ICECAST_SOURCE http://downloads.xiph.org/releases/icecast/icecast
  +ENV ICECAST_VERSION 2.4.3
  +ENV ICECAST_SOURCE http://downloads.xiph.org/releases/icecast
   
   ################################################################################
   # Build instructions
  
positive.code:   libxslt-dev \
    libogg-dev \
    libvorbis-dev \
  
    # OpenSSL
    openssl \
  
    # Supervisor
    supervisor \
  
    # Git
    git-core
  
  WORKDIR /
  
  RUN curl -sL $ICECAST_SOURCE-$ICECAST_VERSION.tar.gz \
    | tar xz
  
  RUN mv icecast-$ICECAST_VERSION icecast
  
negative.code: 
  RUN apt-get -qq update
  RUN apt-get -qq install -y \
    make \
    curl \
    automake \
  