The installation instructions for [tum_ardrone](http://wiki.ros.org/tum_ardrone "ROS wiki") say a modified version of ardrone_autonomy is needed, and this can be installed from https://github.com/tum-vision/ardrone_autonomy. However, this is a rosbuild package, and therefore the (catkinized) current [tum_ardrone package](https://github.com/tum-vision/tum_ardrone) cannot depend on it (see http://wiki.ros.org/catkin/migrating_from_rosbuild#Prerequisites).
What was changed for this modified version? Should I:
1. Use the Ubuntu package for ardrone_autonomy (I'm on Hydro)
2. Install ardrone_autonomy from its [GitHub repo](https://github.com/AutonomyLab/ardrone_autonomy)
3. Try to Catkinize the modified code...
I'm using Hydro on Ubuntu 12.04, but I suspect the same issue will apply to more up-to-date distros.
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