linux-kernel - Re: More uml build failures on 2.16.19-rc3 and 2.6.18.1

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Message-ID: <20061024132025.GA4190@ccure.user-mode-linux.org>
Date:	Tue, 24 Oct 2006 09:20:25 -0400
From:	Jeff Dike <jdike@...toit.com>
To:	Mitch <Mitch@...ts.COM>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: More uml build failures on 2.16.19-rc3 and 2.6.18.1

On Tue, Oct 24, 2006 at 11:31:19AM +0400, Mitch wrote:
> I'm still having build failures on 2.6.18.1 and even the latest -rc3
> 
> home /usr/src/sources/kernel/linux-2.6.18% !ma
> make ARCH=um
>   SYMLINK arch/um/include/kern_constants.h
>   CC      arch/um/sys-i386/user-offsets.s
> arch/um/sys-i386/user-offsets.c: In function 'foo':
> arch/um/sys-i386/user-offsets.c:19: warning: implicit declaration of 
> function 'offsetof'

The last time I saw this, someone had replaced the glibc kernel
headers with a link to include/ within a kernel pool.  There, offsetof
is wrapped in #ifdef __KERNEL__, and inaccessible to userspace.

The glibc headers have a usable offsetof, so fix that, and UML should
build.

				Jeff
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