anchor.diff:  RUN apt-get update \
     && apt-get upgrade -y
   
  -RUN apt-get update \
  -  && apt-get install -y  \
  +RUN apt-get update
  +
  +RUN apt-get install -y  \
       bash-completion \
       bison \
       debhelper \
  
positive.code:     subversion \
      tcl8.6-dev \
      icedtea-netx \
      libatlas-base-dev \
      libcairo2-dev \
      libgsl0-dev \
      libgdal-dev \
  
negative.code:     gdb \
      gfortran \
      groff-base \
      libbz2-dev \
      libcairo2-dev \
      libcurl4-openssl-dev \
  