Function gnunet_sys::GNUNET_GETOPT_option_exclusive

pub unsafe extern "C" fn GNUNET_GETOPT_option_exclusive(
    opt: GNUNET_GETOPT_CommandLineOption
) -> GNUNET_GETOPT_CommandLineOption

Make the given option mutually exclusive with other options.

@param opt option to modify @return @a opt with the exclusive flag set.