anchor.diff:  FROM ubuntu:16.04
   MAINTAINER Alex Harrington <alex@springsignage.com>
   
  -RUN DEBIAN_FRONTEND=noninteractive apt-get update && apt-get install -y \
  +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 \
  
positive.code:     cd /root && \
      rm -r /root/glibmm-${GLIBMM} && \
      rm /root/glibmm.tar.gz
  
  RUN ACLOCAL_PATH="/usr/local/share/aclocal" && \
      export ACLOCAL_PATH && \
  
negative.code: 
  RUN ACLOCAL_PATH="/usr/local/share/aclocal" && \
      export ACLOCAL_PATH && \
  	curl -o /root/libsigcplusplus.tar.gz -SL https://github.com/GNOME/libsigcplusplus/archive/${SIGC}.tar.gz && \
      cd /root && \
      tar -zxvf libsigcplusplus.tar.gz && \
      cd libsigcplusplus-${SIGC} && \
      ./autogen.sh && \
      make && \
      make install && \
      cd /root && \
      rm -r /root/libsigcplusplus-${SIGC} && \
      rm /root/libsigcplusplus.tar.gz
  
  RUN curl -o /root/glib.tar.gz -SL https://github.com/GNOME/glib/archive/${GLIB}.tar.gz && \
      cd /root && \
      tar -zxvf glib.tar.gz && \
      cd glib-${GLIB} && \
      ./autogen.sh && \
      make && \
      make install && \
      cd /root && \
      rm -r /root/glib-${GLIB} && \
      rm /root/glib.tar.gz
  
  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 && \
  