anchor.diff:    libtool \
     curl \
     libxml-parser-perl \
  -  git
  +  git \
  +  g++-7
   
  -ENV MMCOMMON=0.9.10 GLIBMM=2.47.6 GSTREAMERMM=1.8.0 SPDLOG=0.16.3
  +ENV MMCOMMON=0.9.10 SIGC=2.9.1 GLIB=2.50.1 GLIBMM=2.50.1 GSTREAMER=1.10.0 GSTREAMERMM=1.10.0 SPDLOG=0.16.3 CMAKE=3.10.3
  +
  +RUN DEBIAN_FRONTEND=noninteractive apt-get install -y libffi-dev libmount-dev
   
   RUN curl -o /root/mm-common.tar.gz -SL https://github.com/GNOME/mm-common/archive/${MMCOMMON}.tar.gz && \
       cd /root && \
  
positive.code: 
  RUN ACLOCAL_PATH="/usr/local/share/aclocal" && \
      export ACLOCAL_PATH && \
      curl -o /root/glibmm.tar.gz -SL https://github.com/GNOME/glibmm/archive/${GLIBMM}.tar.gz && \
      cd /root && \
      tar -zxvf glibmm.tar.gz && \
  
negative.code: FROM ubuntu:16.04
  MAINTAINER Alex Harrington <alex@springsignage.com>
  
  RUN DEBIAN_FRONTEND=noninteractive apt-get update && apt-get install -y software-properties-common && add-apt-repository ppa:ubuntu-toolchain-r/test && apt-get update && apt-get install -y \
    software-properties-common \
    cmake \
    libgtkmm-3.0-dev \
  