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From: tmseck-lists@netcologne.de (Thomas-Martin Seck)
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Subject: Re: HEADS UP: netatm disabling taking place shortly
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* Robert Watson <rwatson@freebsd.org> [gmane.os.freebsd.current]:

> 
> On Sat, 14 Jul 2007, Doug Barton wrote:
> 
>> This is cool stuff, thanks for your dogged persistence in eliminating GIANT 
>> from the network stack!
>>
>> One tiny thing I've noticed doing a buildworld tonight, because of the way 
>> that /usr/src/usr.bin/kdump/mkioctls works (starting at line 19) it's 
>> necessary to remove /usr/include/netatm _before_ trying to build. You might 
>> want to include that in any instructions you send out regarding this change 
>> (and maybe in UPDATING). If I've missed where you've said that already, 
>> sorry for the noise.
> 
> It's odd, actually -- I ran into this a couple of times earlier in preparing 
> the patch, but didn't run into it with later versions after I redid the 
> include things, etc.  For example, on a vanilla machine (from a couple of 
> weeks ago) now, I don't see the problem during buildworld.  Obviously, a bit 
> more debugging is called for.  Could you try removing the tree in /usr/obj and 
> see if that helps?  Perhaps things are lasting between build runs...

The error is probably caused by stale includes in
/usr/obj/usr/src/tmp/usr/include. This should only happen when one
builds with NO_CLEAN defined.