[CMake] Precompiled headers on OS X 10.8, CMAKE 2.8.9, Clang

[Jason T. Slack-Moehrle]

Hello All,

OS X 10.8.1
CMAKE 2.8.9
Apple clang version 4.0 (tags/Apple/clang-421.10.60) (based on LLVM 3.1svn)

I found: http://vtk.org/Wiki/CMake_FAQ#Does_CMake_support_precompiled_headers.3F

But I am not seeing how I would specify/use a pre-compiled header in
my CMakeLists.txt file.

Can anyone provide some insight on how to implement?

-Jason