[PULL] fixes and clean ups for alpha

[Keith Packard]

Excerpts from Matt Turner's message of Tue Oct 13 18:24:49 -0700 2009:
> Hi Keith,
> Please pull these changes into master. I've gotten confirmation from
> multiple users that they fix the xserver on alpha.

Looks like it worked, but for future reference, it's probably best to
rebase your changes to something closer to master before submitting a
PULL request. Otherwise you risk a merge conflict, which I'll just
bounce.

-- 
keith.packard at intel.com
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