Can anyone update the cmake file to add more configure options for clang?

Such as.
–with-cxx-include-root Directory with the libstdc++ headers.
–with-cxx-include-arch Architecture of the libstdc++ headers.
–with-cxx-include-32bit-dir
32 bit multilib dir.
–with-cxx-include-64bit-dir
64 bit multilib directory
And any more that it might have? Thanks