anchor.diff:    echo "deb http://ftp.riken.jp/Linux/ubuntu/ trusty main multiverse" >> /etc/apt/sources.list && \
     echo "deb-src http://ftp.riken.jp/Linux/ubuntu/ trusty main multiverse" >> /etc/apt/sources.list && \
     apt-get update && apt-get upgrade -y && \
  -  apt-get install -qy openssh-server && \
  +  apt-get install -qy openssh-server xz-utils && \
     apt-get install -qy gcc make && \
     apt-get install -qy libtinfo-dev libx11-dev libxaw7-dev libgif-dev libjpeg-turbo8-dev libpng12-dev libtiff5-dev libxml2-dev librsvg2-dev libxft-dev libxpm-dev libgpm-dev libsm-dev libice-dev libxrandr-dev libxinerama-dev && \
     apt-get install -qy aspell wamerican && \
  
positive.code: 
  WORKDIR /home/developer
  RUN \
    export emacs=emacs-24.4 && \
    wget -q -O - http://ftpmirror.gnu.org/emacs/${emacs}.tar.gz | tar zxf - && \
    mv ${emacs} .build_emacs && \
    (cd .build_emacs && ./configure && make install && make clean && cd ..)
  
  
negative.code: FROM ubuntu:trusty
  MAINTAINER KIYOHIRO ADACHI <kiyoad@da2.so-net.ne.jp>
  
  ENV REFRESHED_AT 2015-04-25
  
  ENV DEBIAN_FRONTEND noninteractive
  
  