anchor.diff:  RUN mkdir -p /src
   WORKDIR /src
   
  +ENV BLAS -L${MKLROOT}/lib/intel64 -lmkl_rt -fopenmp -lpthread -limf -lsvml -ldl
  +ENV CPPFLAGS -I${MKLROOT}/include
  +
  +RUN git clone https://github.com/astromatic/sextractor.git sourceextractor \
  +    && cd sourceextractor \
  +    && sh autogen.sh \
  +    && ./configure --enable-icc --enable-mkl \
  +    && make \
  +    && make install \
  +    && make clean
  +
  +RUN git clone https://github.com/astromatic/psfex.git psfex \
  +    && cd psfex \
  +    && sh autogen.sh \
  +    && ./configure --enable-icc --enable-mkl \
  +    && make \
  +    && make install \
  +    && make clean
  +
   # Astrometry.net
   RUN git clone http://github.com/dstndstn/astrometry.net.git astrometry \
       && cd astrometry \
  
positive.code: RUN mkdir /root/.qdo && echo "[qdo]" > /root/.qdo/qdorc
  RUN python -c "import astropy"
  
  RUN    python    -m compileall /usr/local/lib/python/astrometry \
      && python -O -m compileall /usr/local/lib/python/astrometry \
      && python    -m compileall /usr/local/lib/python/tractor \
      && python -O -m compileall /usr/local/lib/python/tractor
  
  RUN cd /src/legacypipe/py && git pull && git describe && echo 4
  
  RUN    python    -m compileall /src/legacypipe/py \
      && python -O -m compileall /src/legacypipe/py \
      && python    -m compileall /src/unwise_psf/py/unwise_psf.py \
      && python -O -m compileall /src/unwise_psf/py/unwise_psf.py
  
  RUN cd /src/legacypipe/py && git pull && git describe && echo 5
  
  RUN apt update && apt install --no-install-recommends -y vim && apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
  
negative.code:     file \
      pkg-config \
      gdb \
      vim \
      less \
      wget \
      netpbm \
  