[libvirt] [PATCH] Fix macvtap detection by also checking for IFLA_VF_MAX

[Eric Blake]

On 04/14/2012 11:18 AM, Guido Günther wrote:
> since this isn't available on older kernels such as Debian Squeeze's
> 2.6.32. This make --with-macvtap=check work as expected.
> ---
>  configure.ac |    3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> O.k. to apply?
> Cheers,
>  -- Guido
> 
> diff --git a/configure.ac b/configure.ac
> index 3f5b3ff..53c9b34 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -2534,7 +2534,8 @@ AC_MSG_CHECKING([whether to compile with macvtap support])
>  if test "$with_macvtap" != "no" ; then
>      AC_TRY_COMPILE([ #include <sys/socket.h>
>                       #include <linux/rtnetlink.h> ],
> -                   [ int x = MACVLAN_MODE_BRIDGE; ],
> +                   [ int x = MACVLAN_MODE_BRIDGE;
> +                     int y = IFLA_VF_MAX; ],
>                     [ with_macvtap=yes ],

ACK.

-- 
Eric Blake   eblake at redhat.com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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