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Date: Tue, 09 Apr 2013 10:40:22 +0200
From: Paolo Bonzini <pbonzini@redhat.com>
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Subject: Re: [Qemu-devel] latest version qemu compile error
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To: "Zhanghaoyu (A)" <haoyu.zhang@huawei.com>
Cc: Luonengjun <luonengjun@huawei.com>, "Huangweidong (C)" <weidong.huang@huawei.com>, qemu-devel <qemu-devel@nongnu.org>

Il 09/04/2013 10:22, Zhanghaoyu (A) ha scritto:
> I compile the QEMU source download from qemu.git
> (http://git.qemu.org/git/qemu.git) on 4-9-2013, errors reported as below,
> 
>  
> 
> hw/virtio/dataplane/vring.c: In function ‘vring_enable_notification’:
> 
> hw/virtio/dataplane/vring.c:72: warning: implicit declaration of
> function ‘vring_avail_event’
> 
> hw/virtio/dataplane/vring.c:72: warning: nested extern declaration of
> ‘vring_avail_event’
> 
> hw/virtio/dataplane/vring.c:72: error: lvalue required as left operand
> of assignment
> 
> hw/virtio/dataplane/vring.c: In function ‘vring_should_notify’:
> 
> hw/virtio/dataplane/vring.c:107: warning: implicit declaration of
> function ‘vring_need_event’
> 
> hw/virtio/dataplane/vring.c:107: warning: nested extern declaration of
> ‘vring_need_event’
> 
> hw/virtio/dataplane/vring.c:107: warning: implicit declaration of
> function ‘vring_used_event’
> 
> hw/virtio/dataplane/vring.c:107: warning: nested extern declaration of
> ‘vring_used_event’
> 
> hw/virtio/dataplane/vring.c: In function ‘vring_pop’:
> 
> hw/virtio/dataplane/vring.c:262: error: lvalue required as left operand
> of assignment
> 
> make: *** [hw/virtio/dataplane/vring.o] Error 1
> 
>  
> 
> ‘vring_avail_event’ and ‘vring_need_event’ defined in
> /linux-headers/linux/virtio_ring.h, are not available  in vring.c ?

Please send the log of "make V=1".

Paolo