anchor.diff:  ###########################
   WORKDIR ${STOQ_DIR}
   RUN rm -r ${STOQ_TMP}
  -
  
positive.code: ADD . ${STOQ_TMP}/stoq
  ADD ./stoq ${STOQ_DIR}
  
  RUN apt-get update \ 
    && apt-get -y install software-properties-common \
    && apt-add-repository -y multiverse
  
  
negative.code: ####################
  WORKDIR ${STOQ_TMP}
  RUN echo "[stoQ] Installing exiftool..." \
    && wget -O exif.tgz "http://www.sno.phy.queensu.ca/~phil/exiftool/Image-ExifTool-10.59.tar.gz" \
    && tar -xvf exif.tgz
  
  WORKDIR ${STOQ_TMP}/Image-ExifTool-10.59
  RUN perl Makefile.PL \
    && make \
    && make test \
  