anchor.diff:        software-properties-common \
       && add-apt-repository -y ppa:bzindovic/suitesparse-bugfix-1319687 \
       && apt-get update && apt-get install -y --no-install-recommends \
  +      wget \
         gcc \
         g++ \
         make \
  
positive.code:     && rm -rf /usr/src/gtest/build \
      && \
      if [ -z ${VTK_VERSION} ]; then \
        apt-get install -y libvtk6-dev; \
      else \
        VTK_RELEASE=`echo ${VTK_VERSION} | sed s/\.[0-9]*$//` \
        && apt-get install -y wget \
        && cd /usr/src \
        && wget http://www.vtk.org/files/release/${VTK_RELEASE}/VTK-${VTK_VERSION}.tar.gz \
        && tar -xvzf VTK-${VTK_VERSION}.tar.gz \
  
negative.code:       libarpack2-dev \
        libboost-math-dev \
        libboost-random-dev \
        libflann-dev \
        libgtest-dev \
        libnifti-dev \
  