* Possibly -joinable, then no special script, no joinable, then
	     * its a script.
	     */

	    script = Tcl_GetStringFromObj(objv[2], &len);

	    if ((len > 1) && (script[0] == '-') && (script[1] == 'j') &&
		    (0 == strncmp(script, "-joinable", (size_t) len))) {
		joinable = 1;
		script = "testthread wait";	/* Just enter event loop */
	    } else {
		/*
		 * Remember the script
		 */

		joinable = 0;
	    }
	} else if (objc == 4) {
	    /*
	     * Definitely a script available, but is the flag -joinable?
	     */

	    script = Tcl_GetStringFromObj(objv[2], &len);
	    joinable = ((len > 1) && (script[0] == '-') && (script[1] == 'j')
		    && (0 == strncmp(script, "-joinable", (size_t) len)));
	    script = Tcl_GetString(objv[3]);
	} else {
	    Tcl_WrongNumArgs(interp, 2, objv, "?-joinable? ?script?");
	    return TCL_ERROR;
	}
	return ThreadCreate(interp, script, joinable);
    }