anchor.diff:  #Ensure that the right gcc/g++ is being used for centos
   ENV CC /opt/rh/devtoolset-4/root/usr/bin/gcc
   ENV CXX /opt/rh/devtoolset-4/root/usr/bin/g++
  -RUN rm /usr/bin/g++ && ln -s  /opt/rh/devtoolset-4/root/usr/bin/g++ /usr/bin/g++
  -RUN rm /usr/bin/gcc && ln -s  /opt/rh/devtoolset-4/root/usr/bin/gcc  /usr/bin/gcc
  +RUN rm -f /usr/bin/g++ && ln -s  /opt/rh/devtoolset-4/root/usr/bin/g++ /usr/bin/g++
  +RUN rm -f /usr/bin/gcc && ln -s  /opt/rh/devtoolset-4/root/usr/bin/gcc  /usr/bin/gcc
   
   ENV PATH $PATH:/opt/cmake/bin:$JAVA_HOME/bin:/opt/mvn/bin
   
  
positive.code: 
  RUN rm -rf /opt/Arbiter && git clone https://github.com/deeplearning4j/Arbiter /opt/Arbiter
  RUN cd /opt/Arbiter  && chmod +x ./change-scala-versions.sh && ./buildmultiplescalaversions.sh  clean install -DskipTests
  
  
  
  
negative.code: RUN yum -y install wget epel-release pciutils kernel-devel-"$(uname -r)" kernel-headers-"$(uname -r)" dkms perl
  RUN yum -y install centos-release-scl git
  RUN yum -y install devtoolset-4-toolchain
  RUN yum -y install atlas-devel
  RUN scl enable devtoolset-4 bash
  
  
  