Comment 1 for bug 62089

You didn't describe the Ubuntu changes you wanted to override, and the diff includes:

- * add libx11-dev to build depends
-Build-Depends: debhelper (>> 4.0.0), dpatch, g++ (>= 3.3.0), doxygen, pkg-config, autoconf, automake1.7, libtool, libopenalpp-cvs-dev, libproducer-dev, libopenscenegraph-dev (>= 0.9.8), libvorbis-dev, libx11-dev
+Build-Depends: debhelper (>> 4.0.0), dpatch, g++ (>= 3.3.0), doxygen, pkg-config, autoconf, automake1.9, libtool, libopenalpp-cvs-dev, libproducer-dev, libopenscenegraph-dev (>= 0.9.8), libvorbis-dev, pkg-config

Unless you actually describe the Ubuntu changes and *why* you want to drop them, I have to conclude that this was a mistaken sync request.