If you use the pre-compiled DLL's, OpenCV 2 works fine using the C API.
If you are attempting to build OpenCV with C++ Builder, I would suggest that it's probably not worth your while. Having said that, when I first had a look at it a couple of years ago, I don't think CMake had any clang support. I believe it now does, so you might be in with an outside chance.
James Williams wrote:
Has anyone successfully worked with OpenCV in C++ Builder? Is there any kind of cross conversion available for this powerful camera library?