[CMake] CMAKE 2.8.9 not observing CMAKE_FILES_DIRECTORY?

[Jason T. Slack-Moehrle]

Hello

OS X 10.8, CMAKE 2.8.9.

In CMAKE 2.8.9 it seems that CMAKE_FILES_DIRECTORY

SET( PROJECT_BINARY_DIR "." )
SET( CMAKE_FILES_DIRECTORY  ${PROJECT_BINARY_DIR}/output/CMakeFiles )
SET( EXECUTABLE_OUTPUT_PATH ${PROJECT_BINARY_DIR}/bin )

I dont see an 'output/CMakeFiles' created but I do see a 'bin' where
my executable is put.

-Jason