anchor.diff:  RUN git clone https://github.com/swig/swig.git
   RUN cd swig && ./autogen.sh && ./configure && make && make install
   
  +# install new glibc
  +RUN echo "deb http://ftp.debian.org/debian sid main" >> /etc/apt/sources.list
  +RUN apt-get update
  +RUN apt-get -t sid install -y libc6-dev
  +
   # test v8eval
   ADD . $GOPATH/src/github.com/sony/v8eval
   RUN $GOPATH/src/github.com/sony/v8eval/build.sh test
  
positive.code: FROM golang:1.5.1-wheezy
  
  # install new glibc
  RUN echo "deb http://ftp.debian.org/debian sid main" >> /etc/apt/sources.list
  RUN apt-get update
  RUN apt-get -t sid install -y libc6-dev
  
  # install pyenv
  RUN git clone git://github.com/yyuu/pyenv.git /.pyenv
  
negative.code: ENV PATH $PYENV_ROOT/shims:$PYENV_ROOT/bin:$PATH
  
  # install essentials to build python and ruby
  RUN apt-get update
  RUN apt-get install -y build-essential
  RUN apt-get install -y bzip2 libbz2-dev
  RUN apt-get install -y openssl libssl-dev
  