var = int(
      get_var(
          environ_cp, 'TF_NEED_CLANG', None, True, question, yes_reply, no_reply
      )
  )
  return var


def set_clang_compiler_path(environ_cp):
  """Set CLANG_COMPILER_PATH and environment variables.

  Loop over user prompts for clang path until receiving a valid response.
  Default is used if no input is given. Set CLANG_COMPILER_PATH and write