thread_alone_check_flag 2222 ext/tk/tcltklib.c int thread_alone_check_flag = 1; thread_alone_check_flag 2248 ext/tk/tcltklib.c thread_alone_check_flag = get_thread_alone_check_flag(); thread_alone_check_flag 2254 ext/tk/tcltklib.c if (thread_alone_check_flag && rb_thread_alone()) {