linux-kernel - Re: kvm-userspace build break (linux/types.h)

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Message-Id: <1235106727.3826.13.camel@localhost.localdomain>
Date:	Fri, 20 Feb 2009 10:42:07 +0530
From:	Jaswinder Singh Rajput <jaswinder@...nel.org>
To:	Hollis Blanchard <hollisb@...ibm.com>
Cc:	kvm-devel <kvm@...r.kernel.org>, Avi Kivity <avi@...hat.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Sam Ravnborg <sam@...nborg.org>, Ingo Molnar <mingo@...e.hu>,
	Joerg Roedel <joro@...tes.org>, xiantao.zhang@...el.com
Subject: Re: kvm-userspace build break (linux/types.h)

On Thu, 2009-02-19 at 15:50 -0600, Hollis Blanchard wrote:
> A recent kernel merge breaks kvm-userspace build:
>         make[1]: Entering directory `/root/hollisb/kvm-userspace.git/libkvm'
>         gcc -m64 -D__x86_64__ -MMD -MF ./.libkvm.d -g -fomit-frame-pointer -Wall  -fno-stack-protector   -I /root/hollisb/kvm-userspace.git/kernel/include   -c -o libkvm.o libkvm.c
>         In file included from /usr/include/bits/fcntl.h:24,
>                          from /usr/include/fcntl.h:34,
>                          from libkvm.c:30:
>         /usr/include/sys/types.h:46: error: conflicting types for ‘loff_t’
>         /usr/include/linux/types.h:30: error: previous declaration of ‘loff_t’ was here
>         /usr/include/sys/types.h:62: error: conflicting types for ‘dev_t’
>         /usr/include/linux/types.h:13: error: previous declaration of ‘dev_t’ was here
>         [...]
> 
> I built like so:
>         ./configure
>         make -C kernel LINUX=/path/to/kvm.git sync
>         make
> 
> The problem appears to be 00bfddaf7f68a6551319b536f052040c370756b0 and
> cef3767852a9b1a7ff4a8dfe0969e2d32eb728df, both from Jaswinder Singh
> Rajput <jaswinder@...radead.org>: 
>         -#include <asm/types.h>
>         +#include <linux/types.h>
> 
> With these changes, libkvm.c ends up
> including /usr/include/linux/types.h, instead of the
> intended ../kernel/include/linux/types.h.
> 
> Avi, suggestions? More "make sync" hacks?
> 

Avi, Is this already fixed, Or it is in your Magic Box (patch queue ;-)

Hollis: Do you mind testing -tip tree, may be we already fixed your
problem, Ingo is having big Magic Box :)
http://git.kernel.org/?p=linux/kernel/git/x86/linux-2.6-tip.git;a=summary

Thanks,
--
JSR

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