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()) {