gistfile1.m

- (NSMethodSignature*)methodSignatureForSelector:(SEL)aSelector
{
	const char *selname = sel_getName(aSelector);
    NSLog(@"trying to call %s", selname);
    return [super methodSignatureForSelector:aSelector];
}

- (BOOL)respondsToSelector:(SEL)aSelector
{
    NSLog(@"trying to determine %s", sel_getName(aSelector));
    return [super respondsToSelector:aSelector];
}