I'm not sure who and where to ask this, but groovy-pr2-controllers has been broken since May 8[1]. It seems robot_mechanism_controller could not find kdl.
{-------------------------------------------------------------------------------
make[2]: Entering directory `/tmp/buildd/ros-groovy-pr2-controllers-1.9.3/debian/ros-groovy-pr2-controllers/opt/ros/groovy/stacks/pr2_controllers/robot_mechanism_controllers'
mkdir -p bin
cd build && cmake -Wdev -DCMAKE_TOOLCHAIN_FILE=/opt/ros/groovy/share/ros/core/rosbuild/rostoolchain.cmake ..
-- The C compiler identification is GNU
-- The CXX compiler identification is GNU
-- Check for working C compiler: /usr/lib/ccache/gcc
-- Check for working C compiler: /usr/lib/ccache/gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/lib/ccache/c++
-- Check for working CXX compiler: /usr/lib/ccache/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Found PythonInterp: /usr/bin/python (found version "2.7.3")
[rosbuild] Building package robot_mechanism_controllers
Failed to invoke /opt/ros/groovy/bin/rospack deps-manifests robot_mechanism_controllers
[rospack] Error: package/stack 'robot_mechanism_controllers' depends on non-existent package 'kdl' and rosdep claims that it is not a system dependency. Check the ROS_PACKAGE_PATH or try calling 'rosdep update'
CMake Error at /opt/ros/groovy/share/ros/core/rosbuild/public.cmake:129 (message):
Failed to invoke rospack to get compile flags for package
'robot_mechanism_controllers'. Look above for errors from rospack itself.
Aborting. Please fix the broken dependency!
Call Stack (most recent call first):
/opt/ros/groovy/share/ros/core/rosbuild/public.cmake:203 (rosbuild_invoke_rospack)
CMakeLists.txt:7 (rosbuild_init)