On Fri, May 21, 2010 at 2:49 AM, Markus Eich wrote: > while building the latest 'latest' version of ros I get the following > error while linking "libpr2_controller_manager.so" > > > lib/libpr2_controller_manager.so: undefined reference to > `boost::condition_variable::notify_one()' > lib/libpr2_controller_manager.so: undefined reference to > `boost::condition_variable::wait(boost::unique_lock&)' > > > I am using boost 1.40 (Ubuntu lucid). hi Markus, This problem is fixed on trunk, but not yet released. In the meantime, you can apply the patch found at: https://code.ros.org/trac/wg-ros-pkg/ticket/4271 brian.