def options(opt):
    """
	Add the ``--with-ruby-archdir``, ``--with-ruby-libdir`` and ``--with-ruby-binary`` options
	"""
    opt.add_option('--with-ruby-archdir', type='string', dest='rubyarchdir',
        help='Specify directory where to install arch specific files')
    opt.add_option('--with-ruby-libdir', type='string', dest='rubylibdir',
        help='Specify alternate ruby library path')
    opt.add_option('--with-ruby-binary', type='string', dest='rubybinary',
        help='Specify alternate ruby binary')
