bug#39738: ffmpeg-4.2.2 fails to build on native i686-linux

[Maxim Cournoyer]

Hi,

Jan Nieuwenhuizen <janneke@gnu.org> writes:

> Hi,
>
> When building ffmpeg-4.2.2 (current master, 
> 8d1b22b27fba3d1e4310f02a5897d231b42ca117)
> natively on 32bit hardware, the build fails because of two failing tests
> (full log attached)
>
> --- ./tests/ref/fate/filter-pixdesc-grayf32be 2019-12-31 21:35:25.000000000 
> +0000
> +++ tests/data/fate/filter-pixdesc-grayf32be  2020-02-22 15:15:50.209912771 
> +0000
> @@ -1 +1 @@
> -pixdesc-grayf32be   9b23c74e8e8ffae5d7c7e82bbf5929da
> +pixdesc-grayf32be   01816b882016239d0cf84241818926a4
> --- ./tests/ref/fate/filter-pixdesc-grayf32le 2019-12-31 21:35:25.000000000 
> +0000
> +++ tests/data/fate/filter-pixdesc-grayf32le  2020-02-22 15:15:50.253914049 
> +0000
> @@ -1 +1 @@
> -pixdesc-grayf32le   291f074a24c44799a1f437d1c55556f1
> +pixdesc-grayf32le   1b234318d06d5a76e980c376ad8764e5
> Test filter-pixdesc-grayf32be failed. Look at 
> tests/data/fate/filter-pixdesc-grayf32be.err for details.
> make: *** [tests/Makefile:238: fate-filter-pixdesc-grayf32be] Error 1
> make: *** Waiting for unfinished jobs....
> Test filter-pixdesc-grayf32le failed. Look at 
> tests/data/fate/filter-pixdesc-grayf32le.err for details.
> make: *** [tests/Makefile:238: fate-filter-pixdesc-grayf32le] Error 1
>
> Test suite failed, dumping logs.
> command "make" "fate" "-j" "2" failed with status 2
>
> How to attempt fixing this?
>
> Building it on 64 bit hardware (much faster!) works for me, i.e. this
>
>     guix build --system=i686-linux ffmpeg
>
> works for me and can be used as a substitute...

I don't have real 32 bits hardware to test on, but could you please test
ffmpeg 4.4 on such hardware if you have a chance and see if the issues
still exist?

Thanks,

Maxim