anchor.diff:  RUN \
     mkdir .build_pip && \
     (cd .build_pip && wget -q https://bootstrap.pypa.io/get-pip.py && python get-pip.py && cd ..) && \
  -  pip install grip virtualenv flake8 pygments
  +  LANG=C pip install grip virtualenv flake8 pygments
   
   RUN \
  -  export golang=go1.5.3 && \
  +  export golang=go1.6 && \
     wget -q -O - https://storage.googleapis.com/golang/${golang}.linux-amd64.tar.gz | tar -C /usr/local -zxf  - && \
     mkdir /opt/go && \
     echo 'export PATH=$PATH:/usr/local/go/bin:/opt/go/bin' >> .profile && \
  
positive.code:   echo 'export PATH=$PATH:~/.emacs.d/bin' >> .profile
  
  RUN \
    export global=global-6.5.2 && \
    wget -q -O - http://ftpmirror.gnu.org/global/${global}.tar.gz | tar zxf - && \
    mv ${global} .build_global && \
    (cd .build_global && ./configure --with-exuberant-ctags=/usr/bin/ctags-exuberant && make install && make clean && cd ..) && \
  
negative.code:   go get -u golang.org/x/tools/cmd/goimports
  
  RUN \
    export git=2.8.0 && \
    wget -q -O - https://github.com/git/git/archive/v${git}.tar.gz | tar zxf - && \
    mv git-${git} .build_git && \
    (cd .build_git && make prefix=/usr/local && make prefix=/usr/local install && make clean && cd ..)
  