anchor.diff:  # Floor, Boston, MA 02110-1301, USA.
   
   # Use an official Python runtime as a base image (host debian:jessie)
  -FROM python:3.6-slim
  +FROM python:3.7-slim
   
   MAINTAINER COAL Developers <coal-capstone@googlegroups.com>
   
  
positive.code: # dput breaks Docker build
  RUN printf "Package: dput\nPin: origin \"\"\nPin-Priority: -1" >> /etc/apt/preferences
  #RUN add-apt-repository -y ppa:ubuntugis/ubuntugis-unstable
  
  # Download GDAL
  RUN wget http://download.osgeo.org/gdal/2.3.1/gdal-2.3.1.tar.gz && \
  	tar zxvf gdal-2.3.1.tar.gz && \
  	cd gdal-2.3.1 && \
  	./configure && \
  	make && \
  	make install && \
  	ldconfig && \
  	# Test
  	gdalwarp --version
  
  # Set the working directory to /coal
  WORKDIR /coal
  
  # Copy the current directory contents into the container at /coal
  ADD . /coal
  
  # Install pycoal from source, ensures we always use the latest development branch
  RUN python setup.py install
  
negative.code: 		libgdal-dev \
  		libgeos-dev \
  		libgsl0-dev \
  		libopenscenegraph-3.4-dev \
  		libosgearth-dev \
  		libpq-dev \
  		libproj-dev \
  