anchor.diff:  
   RUN apt-get update --fix-missing && apt-get install -y \
       g++ \
  -	autoconf \
  -	autogen \
  -	automake \
  -	libtool \
  -	pkg-config \
  -	libogg0 \
  -	libogg-dev \
  -	libvorbis0a \
  -	libvorbis-dev \
  -	libsamplerate0 \
  -	libsamplerate0-dev \
  -	libx11-dev \
  -	python-dev \
  -	libfreetype6-dev \
  -	libpng12-dev \
  -	libffi-dev \
  -	python-pip \
  -	wget \
  -	bzip2 \
  -	ca-certificates \
  -	libglib2.0-0 \
  -	libxext6 \
  -	libsm6 \
  -	libxrender1 \
  +    autoconf \
  +    autogen \
  +    automake \
  +    libtool \
  +    pkg-config \
  +    libogg0 \
  +    libogg-dev \
  +    libvorbis0a \
  +    libvorbis-dev \
  +    libsamplerate0 \
  +    libsamplerate0-dev \
  +    libx11-dev \
  +    python-dev \
  +    libfreetype6-dev \
  +    libpng12-dev \
  +    libffi-dev \
  +    python-pip \
  +    wget \
  +    bzip2 \
  +    ca-certificates \
  +    libglib2.0-0 \
  +    libxext6 \
  +    libsm6 \
  +    libxrender1 \
       git \
       mercurial \
       subversion
  
positive.code: 
  RUN pip install zounds
  
  CMD zounds-quickstart --datadir data --port 9999
negative.code: RUN wget http://downloads.xiph.org/releases/flac/flac-1.3.1.tar.xz \
      && tar xf flac-1.3.1.tar.xz \
      && cd flac-1.3.1 \
      && ./configure --libdir=/usr/lib/x86_64-linux-gnu && make && make install \
      && cd ..
  
  RUN wget http://www.mega-nerd.com/tmp/libsndfile-1.0.26pre5.tar.gz \
      && tar -xzf libsndfile-1.0.26pre5.tar.gz \
      && cd libsndfile-1.0.26pre5 \
      && ./configure --libdir=/usr/lib/x86_64-linux-gnu && make && make install \
      && cd ..
  
  RUN echo 'export PATH=/opt/conda/bin:$PATH' > /etc/profile.d/conda.sh && \
      wget --quiet https://repo.continuum.io/archive/Anaconda2-2.5.0-Linux-x86_64.sh && \
  