../../utils/devprobe.c:53:67: error: expected ';' at end of declaration error_t parse_opt (int key, char *arg, struct argp_state *state) ^ ; ../../utils/devprobe.c:109:16: error: use of undeclared identifier 'argp' argp_parse (&argp, argc, argv, 0, 0, 0); ^ 2 errors generated.