On 28/02/17 10:34, Juergen Gross wrote:
> In stubdom environment __XEN_INTERFACE_VERSION__ is sometimes defined
> on the command line of the build instruction. This conflicts with
> xen-compat.h defining it unconditionally if __XEN__ or __XEN_TOOLS__
> is set.
>
> Just use #undef in this case to avoid the resulting warning.
>
> Signed-off-by: Juergen Gross <jgr...@suse.com>

Reviewed-by: Andrew Cooper <andrew.coop...@citrix.com>

> ---
>  xen/include/public/xen-compat.h | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/xen/include/public/xen-compat.h b/xen/include/public/xen-compat.h
> index b673653..9453439 100644
> --- a/xen/include/public/xen-compat.h
> +++ b/xen/include/public/xen-compat.h
> @@ -31,6 +31,7 @@
>  
>  #if defined(__XEN__) || defined(__XEN_TOOLS__)
>  /* Xen is built with matching headers and implements the latest interface. */
> +#undef __XEN_INTERFACE_VERSION__
>  #define __XEN_INTERFACE_VERSION__ __XEN_LATEST_INTERFACE_VERSION__
>  #elif !defined(__XEN_INTERFACE_VERSION__)
>  /* Guests which do not specify a version get the legacy interface. */


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