[PULL] misc XQuartz fixes

[Jeremy Huddleston]

On Apr 30, 2010, at 15:53, Keith Packard wrote:

> On Fri, 30 Apr 2010 13:13:16 -0700, Jeremy Huddleston <jeremyhu at apple.com> wrote:
> 
>> what about the early return if it's an UNDRAWABLE_WINDOW?
> 
> &pWin->drawable cannot ever be NULL unless pWin is NULL, and that 'can't
> happen'.

I didn't ask about &pWin->drawable.

I am talking about:

if (pWin->drawable->type == UNDRAWABLE_WINDOW)
    return;