if (verbose) {
		fprintf(stderr, "calling dlsym\n");
	}

	resetSIGIO = (void (*)(void))dlsym(handle, "ResetSIGIO");
	if (resetSIGIO == NULL) {
		fprintf(stderr, "%s\n", dlerror());
		exit(EXIT_FAILURE);
	}

	if (verbose) {
		fprintf(stderr, "calling ResetSIGIO\n");
	}

	resetSIGIO();

	sawSIGIO = (bool (*)(void))dlsym(handle, "SawSIGIO");
	if (sawSIGIO == NULL) {

// CatchSIGIO starts catching SIGIO signals.
//
//export CatchSIGIO
func CatchSIGIO() {
	sigioChan = make(chan os.Signal, 1)
	signal.Notify(sigioChan, syscall.SIGIO)
}

// ResetSIGIO stops catching SIGIO signals.
//
//export ResetSIGIO
func ResetSIGIO() {
	signal.Reset(syscall.SIGIO)
}

// AwaitSIGIO blocks indefinitely until a SIGIO is reported.
//
//export AwaitSIGIO
func AwaitSIGIO() {
	<-sigioChan
}

// CatchSIGIO starts catching SIGIO signals.
//
//export CatchSIGIO
func CatchSIGIO() {
	sigioChan = make(chan os.Signal, 1)
	signal.Notify(sigioChan, syscall.SIGIO)
}

// ResetSIGIO stops catching SIGIO signals.
//
//export ResetSIGIO
func ResetSIGIO() {
	signal.Reset(syscall.SIGIO)
}

// SawSIGIO reports whether we saw a SIGIO.
//
//export SawSIGIO
func SawSIGIO() C.int {
	select {
	case <-sigioChan:

		fprintf(stderr, "C handler saw SIGIO when only Go handler should have\n");
		exit(EXIT_FAILURE);
	}

	// Tell the Go code to stop catching SIGIO.

	if (verbose) {
		printf("calling ResetSIGIO\n");
	}

	ResetSIGIO();

	if (verbose) {
		printf("raising SIGIO\n");
	}

	if (raise(SIGIO) < 0) {
		die("raise");
	}

	if (verbose) {
		printf("calling SawSIGIO\n");
	}