anchor.diff:  
   ENV MODULEPATH $SITEROOT/sw/modules:$MODULEPATH
   RUN export MODULEPATH
  -
  -## system deps
  -RUN yum install -y autoconf automake binutils-devel bzip2-devel bzip2 environment-modules file git gcc gcc-c++ libtool libXpm-devel libXft-devel libXext-devel m4 make ncurses-devel patch readline readline-devel tar texinfo
  -
  -RUN mkdir -p /root/lcg-build
  -ADD install-hwaf.sh       /root/lcg-build/install-hwaf.sh
  -ADD build-lcg.sh          /root/lcg-build/build-lcg.sh
  -RUN (cd /root/lcg-build && ./build-lcg.sh)
  -RUN /bin/rm -rf /root/lcg-build
  +RUN . /etc/profile.d/modules.sh
  +#RUN module load lcg
   
   ## EOF
   
  
positive.code: ## a Dockerfile to install the whole LCG stack
  FROM binet/slc
  MAINTAINER binet@cern.ch
  
  ENV HOME     /root
  
negative.code: RUN export SITEROOT
  
  ENV HWAF_VARIANT x86_64-slc6-gcc47-opt
  ENV HWAF_VERSION 20131204
  ENV HWAF_ROOT    $SITEROOT/hwaf/hwaf-$HWAF_VERSION/linux-amd64
  ENV PATH         $HWAF_ROOT/bin:$PATH
  
  