Trying to build hokuyo_node on OSX, I get an error
that I traced back to dynamic_reconfigure. 

Somehow cmake is generating spurious python dependencies (see below). The
problem is that a binary .egg file is identified as a dependency, but it
is treaded like a folder. So the .egg file exists, but is not a folder,
and when make tries to look into the folder that doesn't exist, it can't
find the file. But the .egg file works just fine, as shown below (import
works just fine in Python). 

I'm not sure how to debug this, and I'm not sure how it can be fixed. Does
anyone with more experience with Python and CMake have any ideas? 

--Nick 

0-1e-c2-b9-c8-99:dynamic_reconfigure nick$ make

mkdir -p bin

cd build && cmake -Wdev -DCMAKE_TOOLCHAIN_FILE=`rospack find rosbuild`/rostoolchain.cmake
 ..

[rosbuild] Building package dynamic_reconfigure

[rosbuild] Including /Users/nick/ros/ros/core/roscpp/cmake/roscpp.cmake

[rosbuild] Including /Users/nick/ros/ros/core/roslisp/cmake/roslisp.cmake

[rosbuild] Including /Users/nick/ros/ros/core/rospy/cmake/rospy.cmake

[rosbuild] Including /Users/nick/ros/other/ros_experimental/rosjava/cmake/rosjava.cmake

-- Java version 1.6.0.22 configured successfully!

[rosbuild] Including /Users/nick/ros/other/ros_experimental/rosoct/cmake/rosoct.cmake

MSG: gencfg_cpp on:Test.cfg

-- Configuring done

-- Generating done

-- Build files have been written to: /Users/nick/ros/stacks/driver_common/dynamic_reconfigure/build

cd build && make 

make[3]: *** No rule to make target `/Library/Python/2.6/site-packages/PyYAML-3.09-py2.6-macosx-10.6-universal.egg/yaml/representer.py',
needed by `../cfg/cpp/dynamic_reconfigure/TestConfig.h'.  Stop.

make[2]: *** [CMakeFiles/ROSBUILD_gencfg_cpp.dir/all] Error 2

make[1]: *** [all] Error 2

make: *** [all] Error 2

0-1e-c2-b9-c8-99:dynamic_reconfigure nick$ echo $PYTHONPATH

/Users/nick/ros/ros/core/roslib/src::/usr/local/lib/python2.6/site-packages

0-1e-c2-b9-c8-99:dynamic_reconfigure nick$ python

Python 2.6.1 (r261:67515, Feb 11 2010, 00:51:29) 

[GCC 4.2.1 (Apple Inc. build 5646)] on darwin

Type "help", "copyright", "credits" or "license"
for more information.

>>> from yaml import representer

>>> quit()

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