250 		const char *rest;  in parse_long_opt()  local
256 		rest = skip_prefix(arg, options->long_name);  in parse_long_opt()
258 			if (!rest)  in parse_long_opt()
260 			if (*rest == '=')  in parse_long_opt()
262 			if (*rest)  in parse_long_opt()
267 		if (!rest) {  in parse_long_opt()
275 				rest = skip_prefix(arg, options->long_name + 3);  in parse_long_opt()
276 				if (rest) {  in parse_long_opt()
314 			rest = skip_prefix(arg + 3, options->long_name);  in parse_long_opt()
316 			if (!rest && !prefixcmp(options->long_name, arg + 3))  in parse_long_opt()
318 			if (!rest)  in parse_long_opt()
322 		if (*rest) {  in parse_long_opt()
323 			if (*rest != '=')  in parse_long_opt()
325 			p->opt = rest + 1;  in parse_long_opt()