Failed to build pyopencv on OS X 10.6

[udibr]

I keep getting message that "ld: unknown option: -R" it looks like the
boost system is breaking down a library-dir passed to g++ into a:
-L <lib-dir> -W,-R -W,<lib-dir>
but on OSX the linker uses -L as a prefix not a -R.
Perhaps this is because pyopencv is configured to use gcc-4.2.0 that
comes with it and not the default compiler.

Thanks for anyone who can help on this.