The edevil cmake-file system, path notation, slash

Cmake file system use the front-slash '/' as the path seperator, but under Windows systems, this can cause problems (we all know that Windows use the back-slash '\' as the path seperator), especially in command line.

Cmake has provided us the command file (to_native_path) to convert cmake path into the native system path, and file (to_cmake_path), vice versa. The example is:

# Convert cmake path into Native pathfile (to_native_path $ {cmake_archive_output_directory} native_output_path) message (status "this is the native output Path =" $ {native_output_path })