Hi,
first of all - sorry for my english 
I render a map of germany via mapnik using the germany-extract from geofabrik.
For lower zoom levels I am using the builtup_area shapefile for town-rendering.
My problem is that I get also the towns of e.g. the netherlands.
Question: Is there a simple possibility to cut the shapefile with a germany-polygon? Or is it possible to say mapnik to take the buildup-data for germany?
Many thanks,
Fritz