Hi, i am working on mapnik 2.2, and transitioning libmapnik2-dev to libmapnik-dev (side note, python-mapnik2 becomes a transitional package in favor of python-mapnik). Reverse build-dependencies seems to be limited to monav-preprocessor 0.3-6+b1 node-mapnik 0.6.7-3 I am working on updating node-mapnik to 1.1 branch, and will try to provide patches for monav-preprocessor. Jérémy.