if ( argc != 5 ){ g_print("Usage: %s node host erlang_regname cookie\n", argv[0]);
if ( argc != 6 ){ g_print("Usage: %s node host erlang_regname cookie node_name\n", argv[0]);
int main(int argc, char **argv){  int fd;  if ( argc != 5 ){    g_print("Usage: %s node host erlang_regname cookie\n", argv[0]);    return 1;  }    fd = gn_start_cnode(argv);  start_gtk(argc, argv, fd);  return 0;}