Date: Tue, 6 Nov 2007 14:11:43 +0000
From: Al Viro <viro@ftp.linux.org.uk>
To: WANG Cong <xiyou.wangcong@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>, jdike@karaya.com,
       user-mode-linux-devel@lists.sourceforge.net
Subject: Re: UML defconfig building failed again
Message-ID: <20071106141143.GI8181@ftp.linux.org.uk>
References: <20071106114602.GB7652@hacking>
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On Tue, Nov 06, 2007 at 07:46:02PM +0800, WANG Cong wrote:
> 
> Hi, Jeff!
> 
> I used today's linus-tree and defconfig to compile uml, but it failed. Error messages are
> things like:
> 
> In file included from include/asm/processor-generic.h:13,
>                  from include/asm/processor.h:77,
>                  from include/asm/thread_info.h:11,
>                  from include/linux/thread_info.h:21,
>                  from include/linux/preempt.h:9,
>                  from include/linux/spinlock.h:49,
>                  from include/linux/seqlock.h:29,
>                  from include/linux/time.h:8,
>                  from include/linux/timex.h:57,
>                  from include/linux/sched.h:53,
>                  from arch/um/include/sysdep/kernel-offsets.h:2,
>                  from arch/um/kernel/asm-offsets.c:1:
> include/asm/ptrace.h:50: warning: ???struct user_fxsr_struct??? declared inside parameter list
> include/asm/ptrace.h:50: warning: its scope is only this definition or declaration, which is probably not what you want
> include/asm/ptrace.h:52: warning: ???struct user_fxsr_struct??? declared inside parameter list
> In file included from include/linux/timer.h:5,
>                  from include/linux/sched.h:87,
>                  from arch/um/include/sysdep/kernel-offsets.h:2,
>                  from arch/um/kernel/asm-offsets.c:1:
> include/linux/ktime.h: In function ???ktime_set???:
> include/linux/ktime.h:84: warning: comparison is always false due to limited range of data type
> 
> {snip}
> 
> It seems like CONFIG_X86_32 was not set. Any ideas?

Sigh...  Kbuild breakage this time...  See if %s/\<[AC]FLAGS\>/KBUILD_&/g
in arch/um/Makefile-i386 helps.
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