* impact on the stack. */
#ifdef TCL_CROSS_COMPILE
    if (stackGrowsDown == -1) {
	/*
	 * Not initialised!
	 */

	stackGrowsDown = StackGrowsDown(&result);
	stackGrowsDown = StackGrowsDown(NULL);
    }
#endif
    
    /*
     * The first time through in a thread: record the "outermost" stack
     * frame and inquire with the OS about the stack size.
     */

#ifdef TCL_CROSS_COMPILE
int
StackGrowsDown(
    int *parent)
{
    int here;
    if (!parent) {
	return StackGrowsDown(&here);
    }
    return (&here < parent);
}
#endif

/*
 *----------------------------------------------------------------------
 *