groovy OSX install fails building opencv2 because LONG_BIT definition appears wrong for platform

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Following the instructions at http://www.ros.org/wiki/groovy/Installation/Source#Building_the_catkin_Workspace

I run

./src/catkin/bin/catkin_make_isolated --install

But it fails. greping the logs yeilds

Building CXX object modules/python/CMakeFiles/opencv_python.dir/src2/cv2.cpp.o
modules/core/doc/old_basic_structures In file included from /Users/nchalko/ros_catkin_ws/src/opencv2/modules/python/src2/cv2.cpp:1:
In file included from /Library/Frameworks/Python.framework/Headers/Python.h:55:
/Library/Frameworks/Python.framework/Headers/pyport.h:616:2: error: "LONG_BIT definition appears wrong for platform (bad gcc/glibc config?)."
#error "LONG_BIT definition appears wrong for platform (bad gcc/glibc config?)."
 ^

I played with building opencv by hand but never got only got it to work by not building the python part.

Note:

brew install opencv

works fine

I am running OS X 10.8.2 (12C60) And using xcode Version 4.5.2 (4G2008a)

I am stuck. my pthyon + cmake foo is too weak to know were to start.

So how can I get groovy to install opencv2 on my mac.