anchor.diff:          tesseract-ocr-hrv tesseract-ocr-hun tesseract-ocr-rus \
           tesseract-ocr-pol tesseract-ocr-slk tesseract-ocr-slv \
           tesseract-ocr-sqi tesseract-ocr-srp tesseract-ocr-tur \
  -        tesseract-ocr-ukr djvulibre-bin \
  -        && apt-get -y autoremove && apt-get clean
  +        tesseract-ocr-ukr djvulibre-bin
   
   RUN curl -s http://www.five-ten-sg.com/libpst/packages/libpst-0.6.69.tar.gz > /tmp/pst.tgz \
  -    && cd /tmp && tar xvfz pst.tgz && cd libpst-0.6.69 && ln -s /usr/bin/python /usr/bin/python2.7.10 \
  -    && ./configure && make && make install
  +    && cd /tmp \
  +    && tar xfz pst.tgz \
  +    && cd libpst-0.6.69 \
  +    && ln -s /usr/bin/python /usr/bin/python2.7.10 \
  +    && ./configure \
  +    && make \
  +    && make install
   
   RUN sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen && \
       sed -i -e 's/# en_GB.ISO-8859-15 ISO-8859-15/en_GB.ISO-8859-15 ISO-8859-15/' /etc/locale.gen && \
  
positive.code: 
  # WebKit HTML to X install since the one that comes with distros is hellishly outdated.
  RUN curl -L -s https://github.com/wkhtmltopdf/wkhtmltopdf/releases/download/0.12.4/wkhtmltox-0.12.4_linux-generic-amd64.tar.xz > /tmp/wkhtmltox.tar.xv \
      && tar -xf /tmp/wkhtmltox.tar.xv -C /opt && rm -f /tmp/wkhtmltox.tar.xv
  ENV WKHTMLTOPDF_BIN /opt/wkhtmltox/bin/wkhtmltopdf
  ENV TESSDATA_PREFIX /usr/share/tesseract-ocr
  
  RUN apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
  
negative.code: # Enable non-free archive for `unrar`.
  RUN echo "deb http://http.us.debian.org/debian jessie non-free" >/etc/apt/sources.list.d/nonfree.list
  
  RUN apt-get -qq -y update && apt-get -qq -y dist-upgrade
  RUN apt-get -qq -y install  \
          curl git python-pip python-virtualenv build-essential python-dev \
          libxml2-dev libxslt1-dev libpq-dev apt-utils ca-certificates less \
          postgresql-client-9.4 unrar unrar-free unzip locales libreoffice \
  