FSHOW_SIGNAL((stderr, printf("pthread_create returned %d, errno %d\n", retcode, errno)));
FSHOW_SIGNAL((stderr, "wanted stack size %d, min stack size %d\n",
THREAD_CONTROL_STACK_SIZE-16, PTHREAD_STACK_MIN));
FSHOW_SIGNAL((stderr, printf("pthread_create returned %d, errno %d\n", retcode, errno)));
FSHOW_SIGNAL((stderr, "wanted stack size %d, min stack size %d\n",
THREAD_CONTROL_STACK_SIZE-16, PTHREAD_STACK_MIN));