opt_register_arg("-t|--target <testname>", opt_set_target, NULL, &all,
"only run one test (and its prerequisites)");
opt_register_arg("--compiler <compiler>", opt_set_const_charp,
opt_register_arg("-t|--target <testname>", opt_set_target, NULL, &all,
"only run one test (and its prerequisites)");
opt_register_arg("--compiler <compiler>", opt_set_const_charp,