anchor.diff:          doxygen \
           g++-5 \
           git \
  -        libmyodbc \
  -        libsqliteodbc \
           make \
           mysql-client \
           mysql-server \
  
positive.code: # FROM ubuntu:latest
  # RUN DEBIAN_FRONTEND=noninteractive apt-get -qqy update \
  #  && DEBIAN_FRONTEND=noninteractive apt-get -qqy install software-properties-common
  
  # travis-ci unit tests run using ubuntu:precise, but development is often
  # far less painful using ubuntu:latest instead. In future we can drop precise.
  FROM ubuntu:precise
  RUN DEBIAN_FRONTEND=noninteractive apt-get update -qqy \
   && DEBIAN_FRONTEND=noninteractive apt-get -qqy install python-software-properties
  
  RUN DEBIAN_FRONTEND=noninteractive add-apt-repository -y ppa:ubuntu-toolchain-r/test
  RUN DEBIAN_FRONTEND=noninteractive apt-get update -qqy \
  
negative.code: # Might not be available, but install it if it is.
  RUN DEBIAN_FRONTEND=noninteractive apt-get -y install jekyll || true
  
  # NOTE: `libmyodbc`, the package for MySQL ODBC support, is no longer available directly via a
  # simple `apt-get install libmyodbc` command. Instead, you must install it manually. The following
  # blog post provides step-by-step instructions.
  # https://www.datasunrise.com/blog/how-to-install-the-mysql-odbc-driver-on-ubuntu-16-04/
  
  RUN odbcinst -i -d -f /usr/share/sqliteodbc/unixodbc.ini
  
  ENV CXX g++-5
  