anchor.diff:  
   # Build and install ITK from source.
   WORKDIR /usr/src
  -RUN git clone git://itk.org/ITK.git
  -WORKDIR /usr/src/ITK
  -RUN git fetch http://review.source.kitware.com/ITK refs/changes/56/19856/6 && \
  -  git checkout FETCH_HEAD -b ExternalModule
  -RUN mkdir /usr/src/ITK-build
  -WORKDIR /usr/src/ITK-build
  -RUN cmake -G Ninja \
  -  -DCMAKE_BUILD_TYPE:STRING=MinSizeRel \
  -  -DCMAKE_INSTALL_PREFIX:PATH=/usr \
  -  -DBUILD_TESTING:BOOL=OFF \
  -  -DBUILD_EXAMPLES:BOOL=OFF \
  -  -DBUILD_SHARED_LIBS:BOOL=ON \
  -  -DITK_WRAP_PYTHON:BOOL=ON \
  -    /usr/src/ITK && \
  +RUN git clone git://itk.org/ITK.git && \
  +  cd /usr/src/ITK && \
  +  git fetch http://review.source.kitware.com/ITK refs/changes/56/19856/6 && \
  +    git checkout FETCH_HEAD -b ExternalModule && \
  +  mkdir /usr/src/ITK-build && \
  +  cd /usr/src/ITK-build && \
  +  cmake -G Ninja \
  +    -DCMAKE_BUILD_TYPE:STRING=MinSizeRel \
  +    -DCMAKE_INSTALL_PREFIX:PATH=/usr \
  +    -DBUILD_TESTING:BOOL=OFF \
  +    -DBUILD_EXAMPLES:BOOL=OFF \
  +    -DBUILD_SHARED_LIBS:BOOL=ON \
  +    -DITK_WRAP_PYTHON:BOOL=ON \
  +      /usr/src/ITK && \
     ninja install && \
  -  rm -rf *
  +  cd .. && \
  +  rm -rf ITK ITK-build
   
   RUN mkdir /usr/bin/ITKUltrasound-build
   
  
positive.code: WORKDIR /usr/src
  RUN git clone git://cmake.org/cmake.git CMake && \
    cd CMake && \
    git checkout v3.3.0
  RUN mkdir CMake-build
  WORKDIR /usr/src/CMake-build
  RUN /usr/src/CMake/bootstrap \
      --parallel=$(nproc) \
      --prefix=/usr && \
    make -j$(nproc) && \
  
negative.code:     -DCMAKE_BUILD_TYPE:STRING=Release \
      -DCMAKE_USE_OPENSSL:BOOL=ON . && \
    make install && \
    cd .. && \
    rm -rf CMake CMake-build
  
  # Build and install KWStyle from source.
  WORKDIR /usr/src
  