anchor.diff:      libpagemaker \
       libodfgen \
       libgltf \
  +    libexttextcat \
   "
   
   # necessary to let the call for python-config succeed
  
positive.code:     harfbuzz \
      cppunit \
      glew \
      \
      mdds \
      glm \
  
negative.code:     --with-system-libpagemaker \
      --with-system-libodfgen \
      --with-system-libgltf \
      --with-system-libexttextcat \
  "
  
  do_configure() {
  