Re: [Qemu-devel] [PATCH] vfio: fix build error on CentOS 5.7

[Alex Williamson <alex.williamson@redhat.com>]

On Wed, 2015-06-17 at 13:35 +0100, Leon Alrae wrote:
> Include linux/vfio.h after sys/ioctl.h, just like in hw/vfio/common.c.
> 
> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
> ---
> CentOS 5 is one of hosts I still use. For building I already provide custom
> GLib to satisfy version 2.22 dependency. However, with commit 0ea2730b QEMU
> doesn't build on CentOS 5.7:
> 
>   CC    mips-softmmu/hw/vfio/platform.o
> In file included from /usr/include/stdlib.h:438,
>                  from /work/qemu/include/qemu-common.h:26,
>                  from /work/qemu/include/hw/hw.h:5,
>                  from /work/qemu/include/hw/qdev.h:4,
>                  from /work/qemu/include/hw/sysbus.h:6,
>                  from /work/qemu/include/hw/vfio/vfio-platform.h:19,
>                  from /work/qemu/hw/vfio/platform.c:20:
> /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
> ...
> 
> And this patch fixes above problem.
> 
> Leon
> ---
>  hw/vfio/platform.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/hw/vfio/platform.c b/hw/vfio/platform.c
> index 9382bb7..5c678b9 100644
> --- a/hw/vfio/platform.c
> +++ b/hw/vfio/platform.c
> @@ -14,8 +14,8 @@
>   *  Copyright Red Hat, Inc. 2012
>   */
>  
> -#include <linux/vfio.h>
>  #include <sys/ioctl.h>
> +#include <linux/vfio.h>
>  
>  #include "hw/vfio/vfio-platform.h"
>  #include "qemu/error-report.h"

Thanks for the patch.  Peter, if you want to pop this in as a build fix,
I'd welcome it.  Otherwise I can take it the normal route.  Thanks.

Acked-by: Alex Williamson <alex.williamson@redhat.com>