cf: 
https://code.ros.org/trac/ros/browser/stacks/ros/trunk/core/rosbuild/deprecated.
cmake?rev=6253

What steps will reproduce the problem?
1. Using Diamondback...
2. ...rosmake phidgetspp


What is the expected output? What do you see instead?

Expected: successful build.
Instead: 
[ rosmake ] All 8 lines
{-------------------------------------------------------------------------------
  mkdir -p bin
  cd build && cmake -Wdev -DCMAKE_TOOLCHAIN_FILE=`rospack find rosbuild`/rostoolchain.cmake  ..
  CMake Error at CMakeLists.txt:3 (rospack):
    Unknown CMake command "rospack".


  -- Configuring incomplete, errors occurred!
-------------------------------------------------------------------------------}
[ rosmake ] Output from build of package phidgetspp written to:
[ rosmake ]    
/Users/nick/.ros/rosmake/rosmake_output-20110527-115329/phidgetspp/build_output.
log

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