Create Visual Studio project without cmake


I am interested in using (parts) of LLVM/clang in my Visual Studio
project. I don't want the resulting VS project file(s) to depend on CMAKE.

A (fairly old) thread on CMAKE mailing list says it is not supported by
CMAKE to generate CMAKE-independent VS projects

So, does anyone here know a better way to achieve this than doing it
completely by hand?

If not, are there any problems I could run into, or should it be
straightforward? Could I use the llvm 2.4 project files as a starting
point or have things changed too much?