/*
     * Short circut sends to ourself. Ought to do something with -async, like
     * run in an idle handler.
     */

    if (threadId == Tcl_GetCurrentThread()) {
	Tcl_MutexUnlock(&threadMutex);
	return Tcl_EvalEx(interp, script, -1, TCL_EVAL_GLOBAL);
    }

    /*
     * Create the event for its event queue.
     */

    threadEventPtr = ckalloc(sizeof(ThreadEvent));

	result = "no target interp!";
	errorCode = "THREAD";
	errorInfo = "";
    } else {
	Tcl_Preserve(interp);
	Tcl_ResetResult(interp);
	Tcl_CreateThreadExitHandler(ThreadFreeProc, threadEventPtr->script);
	code = Tcl_EvalEx(interp, threadEventPtr->script, -1, TCL_EVAL_GLOBAL);
	Tcl_DeleteThreadExitHandler(ThreadFreeProc, threadEventPtr->script);
	if (code != TCL_OK) {
	    errorCode = Tcl_GetVar(interp, "errorCode", TCL_GLOBAL_ONLY);
	    errorInfo = Tcl_GetVar(interp, "errorInfo", TCL_GLOBAL_ONLY);
	} else {
	    errorCode = errorInfo = NULL;
	}