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From: Anthony Liguori <anthony@codemonkey.ws>
In-Reply-To: <20130103094457.GB28326@stefanha-thinkpad.muc.redhat.com>
References: <50E54FAF.6060203@redhat.com> <50E5503B.7090604@weilnetz.de>
	<20130103094457.GB28326@stefanha-thinkpad.muc.redhat.com>
Date: Thu, 03 Jan 2013 12:59:44 -0600
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Subject: Re: [Qemu-devel] dataplane build error
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To: Stefan Hajnoczi <stefanha@redhat.com>, Stefan Weil <sw@weilnetz.de>
Cc: Gerd Hoffmann <kraxel@redhat.com>, "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>

Stefan Hajnoczi <stefanha@redhat.com> writes:

> On Thu, Jan 03, 2013 at 10:32:43AM +0100, Stefan Weil wrote:
>> Am 03.01.2013 10:30, schrieb Gerd Hoffmann:
>> >   CC    hw/dataplane/vring.o
>> >cc1: warnings being treated as errors
>> >/home/kraxel/projects/qemu/hw/dataplane/vring.c: In function =E2=80=98v=
ring_setup=E2=80=99:
>> >/home/kraxel/projects/qemu/hw/dataplane/vring.c:46: error: implicit
>> >declaration of function =E2=80=98trace_vring_setup=E2=80=99
>> >/home/kraxel/projects/qemu/hw/dataplane/vring.c:46: error: nested extern
>> >declaration of =E2=80=98trace_vring_setup=E2=80=99
>> >gmake: *** [hw/dataplane/vring.o] Error 1
>>=20
>>=20
>> Hi Gerd,
>>=20
>> I got this one, too. Removing a generated file trace.h fixes it.
>
> Anthony hit this yesterday with an out-of-tree build, too.

http://article.gmane.org/gmane.comp.emulators.qemu/186471

I usually try to make an announcement when there are issues like this.

Regards,

Anthony Liguori

>
> trace.h used to be generated, since
> eac236ea7bfc1902126be70459e320591078df5c (build: Use separate makefile
> for "trace/") it is a static file.  The build system is getting
> confused.
>
> Stefan