[PATCH] Abstract calls to in/out with IN/OUT macros

[Mark Kettenis]

> From: Matt Turner <mattst88 at gmail.com>
> Date: Sun,  1 Nov 2009 14:01:20 -0500
> 
> This will allow us to include sys/io.h and use libc's in/out when
> available.

While I sympathise with your attempt to clean up the mess in
compiler.h, this will break at least one driver (xf86-video-i128).