Bug#751856: libav FTBFS on arm64

[peter green]

Reinhard Tartler wrote:
>> I'm now attempting to disable NEON to see
>> if that makes the package build.
>>     
>
> This should be a better patch:
>
> https://git.libav.org/?p=libav.git;a=commitdiff;h=34fb994d9340313b0d247899a4a7a97cc010df92;hp=e780c3daafe0588e035e752c771ebfcd2201746a
>
> Can you verify that patch works for you?
>   
The build without neon is currently still in progress.

I'll probablly try your patch later when I come to do a full-feature build.