trouble building opencv on fc15

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I'm trying to build desktop-full on an FC15 machine. After dealing with the boost/filesystem issues, opencv is giving me trouble now:

In file included from /opt/ros/diamondback/vision_opencv/opencv2/build/opencv-svn/modules/core/src/precomp.hpp:55:0,
                 from /opt/ros/diamondback/vision_opencv/opencv2/build/opencv-svn/build/modules/core/opencv_core_pch_dephelp.cxx:1:
/opt/ros/diamondback/vision_opencv/opencv2/build/opencv-svn/modules/core/include/opencv2/core/core.hpp:354:13: error: ‘ptrdiff_t’ does not name a type
In file included from /opt/ros/diamondback/vision_opencv/opencv2/build/opencv-svn/modules/core/src/precomp.hpp:55:0,
                 from /opt/ros/diamondback/vision_opencv/opencv2/build/opencv-svn/build/modules/core/opencv_core_pch_dephelp.cxx:1:
/opt/ros/diamondback/vision_opencv/opencv2/build/opencv-svn/modules/core/include/opencv2/core/core.hpp:2600:13: error: ‘ptrdiff_t’ does not name a type
/opt/ros/diamondback/vision_opencv/opencv2/build/opencv-svn/modules/core/include/opencv2/core/core.hpp:2623:24: error: declaration of ‘operator[]’ as non-function
/opt/ros/diamondback/vision_opencv/opencv2/build/opencv-svn/modules/core/include/opencv2/core/core.hpp:2623:22: error: expected ‘;’ at end of member declaration
/opt/ros/diamondback/vision_opencv/opencv2/build/opencv-svn/modules/core/include/opencv2/core/core.hpp:2623:34: error: expected ‘)’ before ‘i’
/opt/ros/diamondback/vision_opencv/opencv2/build/opencv-svn/modules/core/include/opencv2/core/core.hpp:2626:36: error: declaration of ‘operator+=’ as non-function
/opt/ros/diamondback/vision_opencv/opencv2/build/opencv-svn/modules/core/include/opencv2/core/core.hpp:2626:32: error: expected ‘;’ at end of member declaration
/opt/ros/diamondback/vision_opencv/opencv2/build/opencv-svn/modules/core/include/opencv2/core/core.hpp:2626:46: error: expected ‘)’ before ‘ofs’
/opt/ros/diamondback/vision_opencv/opencv2/build/opencv-svn/modules/core/include/opencv2/core/core.hpp:2628:36: error: declaration of ‘operator-=’ as non-function
/opt/ros/diamondback/vision_opencv/opencv2/build/opencv-svn/modules/core/include/opencv2/core/core.hpp:2628:32: error: expected ‘;’ at end of member declaration
/opt/ros/diamondback/vision_opencv/opencv2/build/opencv-svn/modules/core/include/opencv2/core/core.hpp:2628:46: error: expected ‘)’ before ‘ofs’
/opt/ros/diamondback/vision_opencv/opencv2/build/opencv-svn/modules/core/include/opencv2/core/core.hpp:2641:5: error: ‘ptrdiff_t’ does not name a type
/opt/ros/diamondback/vision_opencv/opencv2/build/opencv-svn/modules/core/include/opencv2/core/core.hpp:2642:15: error: ‘ptrdiff_t’ has not been declared
/opt/ros/diamondback/vision_opencv/opencv2/build/opencv-svn/modules/core/include/opencv2/core/core.hpp:2661:13: error: ‘ptrdiff_t’ does not name a type
/opt/ros/diamondback/vision_opencv/opencv2/build/opencv-svn/modules/core/include/opencv2/core/core.hpp:2684:21: error: ‘ptrdiff_t’ has not been declared
/opt/ros/diamondback/vision_opencv/opencv2/build/opencv-svn/modules/core/include/opencv2/core/core.hpp:2687:37: error: declaration of ‘operator+=’ as non-function
/opt/ros/diamondback/vision_opencv/opencv2/build/opencv-svn/modules/core/include/opencv2/core/core.hpp:2687:33: error: expected ‘;’ at end of member declaration
/opt/ros/diamondback/vision_opencv/opencv2/build/opencv-svn/modules/core/include/opencv2/core/core.hpp:2687:47: error: expected ‘)’ before ‘ofs’
/opt/ros/diamondback/vision_opencv/opencv2/build/opencv-svn/modules/core/include/opencv2/core/core.hpp:2689:37: error ...