Function getopt_long
pub unsafe extern "C" fn getopt_long(argc: c_int, argv: *const *mut c_char, optstring: *const c_char, longopts: *const option, longindex: *mut c_int) -> c_intgetopt_longpub unsafe extern "C" fn getopt_long(argc: c_int, argv: *const *mut c_char, optstring: *const c_char, longopts: *const option, longindex: *mut c_int) -> c_int