OpenCV 2.1 doesn't compile on OSX snow leopard 64 bit (Bug #261)

I needed to patch the source to get OpenCV 2.1.0 compiling on OSX snow leopard. See patch.

There was a problem that highgui was linking to quicktime (32 bit) and QuartzCore. Also, the python module file extension is wrong. The cmakefile assumes that when you use osx the extension for python modules is .SO, but this isn't always the case, for example when you use a gentoo osx prefix.

Linking CXX shared library ../../lib/libhighgui.dylib
cd /Users/gijs/Work/opencv/OpenCV-2.1.0/build/src/highgui && /Gentoo/usr/bin/cmake -E cmake_link_script CMakeFiles/highgui.dir/link.txt --verbose=1
/Gentoo/usr/bin/c++ -Wall -pthread -O3 -DNDEBUG -fomit-frame-pointer -O3 -ffast-math -msse -msse2 -msse3 -mssse3 -DNDEBUG -dynamiclib -headerpad_max_install_names -compatibility_version 2.1.0 -current_version 2.1.0
-o ../../lib/libhighgui.2.1.0.dylib
-install_name /Users/gijs/Work/opencv/OpenCV-2.1.0/build/lib/libhighgui.2.1.dylib
CMakeFiles/highgui.dir/cvcap.o CMakeFiles/highgui.dir/cvcap_images.o CMakeFiles/highgui.dir/image.o CMakeFiles/highgui.dir/loadsave.o CMakeFiles/highgui.dir/precomp.o CMakeFiles/highgui.dir/utils.o CMakeFiles/highgui.dir/window.o CMakeFiles/highgui.dir/window_cocoa.o CMakeFiles/highgui.dir/cvcap_qt.o CMakeFiles/highgui.dir/bitstrm.o CMakeFiles/highgui.dir/grfmt_base.o CMakeFiles/highgui.dir/grfmt_bmp.o CMakeFiles/highgui.dir/grfmt_exr.o CMakeFiles/highgui.dir/grfmt_imageio.o CMakeFiles/highgui.dir/grfmt_jpeg.o CMakeFiles/highgui.dir/grfmt_jpeg2000.o CMakeFiles/highgui.dir/grfmt_png.o CMakeFiles/highgui.dir/grfmt_pxm.o CMakeFiles/highgui.dir/grfmt_sunras.o CMakeFiles/highgui.dir/grfmt_tiff.o
-L/Users/gijs/Work/opencv/OpenCV-2.1.0/build/3rdparty/lib ../../lib/libcxcore.2.1.0.dylib ../../lib/libcv.2.1.0.dylib ../../3rdparty/lib/liblibjasper.a ../../3rdparty/lib/liblibjpeg.a ../../3rdparty/lib/liblibpng.a ../../3rdparty/lib/libzlib.a ../../3rdparty/lib/liblibtiff.a -lbz2 -framework Cocoa -framework QuickTime -framework CoreFoundation -framework QuartzCore -framework QTKit ../../lib/libcxcore.2.1.0.dylib ../../3rdparty/lib/libzlib.a ../../3rdparty/lib/libopencv_lapack.a ../../3rdparty/lib/libflann.a
collect2: ld terminated with signal 6 [Abort trap]
got unhandled exception: missing required architecture x86_64 in file
terminate called after throwing an instance of 'char const*'
maker2: * [lib/libhighgui.2.1.0.dylib] Error 1
maker2: Leaving directory /Users/gijs/Work/opencv/OpenCV-2.1.0/build'
maker1: *** [src/highgui/CMakeFiles/highgui.dir/all] Error 2
maker1: *** Waiting for unfinished jobs....
maker2: Leaving directory /Users/gijs/Work/opencv/OpenCV-2.1.0/build'
/Gentoo/usr/bin/cmake -E cmake_progress_report /Users/gijs/Work/opencv/OpenCV-2.1.0/build/CMakeFiles 96
[ 69%] Built target pch_Generate_cxcoretest
maker1: Leaving directory @/Users/gijs/Work/opencv/OpenCV-2.1.0/build'
make: * [all] Error 2