anchor.diff:  FROM centos:5.11
  -MAINTAINER The NumPy Project
  +MAINTAINER The ManyLinux project
   
   # Python versions installed in /opt/python. Could add more, if desired.
   ENV PY_VERS="2.7.11  3.5.1"
  
positive.code: RUN yum -y erase wireless-tools gtk2 libX11 hicolor-icon-theme \
                   avahi freetype bitstream-vera-fonts \
                   ${PYTHON_COMPILE_DEPS}  > /dev/null 2>&1 && \
      yum -y clean all > /dev/null 2>&1 && \
      yum list installed
  
negative.code:                    kernel-devel-`uname -r` \
                     devtoolset-2-binutils devtoolset-2-gcc \
                     devtoolset-2-gcc-c++ devtoolset-2-gcc-gfortran \
                     ${PYTHON_COMPILE_DEPS}
  ENV PATH /opt/rh/devtoolset-2/root/usr/bin:$PATH
  ENV LD_LIBRARY_PATH /opt/rh/devtoolset-2/root/usr/lib64:/opt/rh/devtoolset-2/root/usr/lib
  
  