On Fri, Jul 08, 2011 at 09:19:10AM +0200, Gerd Hoffmann wrote:
>   Hi,
> 
> >-        DEFINE_PROP_UINT32("revision", PCIQXLDevice, revision, 2),
> >+        DEFINE_PROP_UINT32("revision", PCIQXLDevice, revision, 3),
> 
> Can't be done unconditionally.  With an older libspice we can't
> support the rev3 features.

ok. so this needs a runtime check for major_version.minor_version >= 3.1, no? a 
compile
time won't work because someone can change the shared object, no? (maybe I 
should just
check this scenario).

> 
> cheers,
>   Gerd

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