Bug#895154: ffmpeg: FTBFS - make[2]: write error: stdout

[Niels Thykier]

On Sat, 7 Apr 2018 21:38:53 +0100 James Cowgill <jcowgill at debian.org> wrote:
> Source: ffmpeg
> Version: 7:3.4.1-1
> Severity: serious
> Tags: sid buster
> 
> For some reason ffmpeg has started FTBFS with this error:
> > TEST    vsynth2-zlib
> > /<<PKGBUILDDIR>>/tests/fate-run.sh fate-vsynth2-zlib "" "" "/<<PKGBUILDDIR>>/debian/standard" 'enc_dec "rawvideo -s 352x288 -pix_fmt yuv420p " tests/data/vsynth2.yuv avi "-c zlib " rawvideo "-s 352x288 -pix_fmt yuv420p -vsync 0 " -keep ""' '' '/<<PKGBUILDDIR>>/tests/ref/vsynth/vsynth2-zlib' '' '1' '' '' '' '' '' '1' '' '' ''
> >  /<<PKGBUILDDIR>>/debian/standard/ffmpeg -nostdin -nostats -cpuflags all -f rawvideo -s 352x288 -pix_fmt yuv420p -threads 1 -idct simple -flags +bitexact -sws_flags +accurate_rnd+bitexact -fflags +bitexact -hwaccel none -threads 1 -thread_type frame+slice -i /<<PKGBUILDDIR>>/debian/standard/tests/data/vsynth2.yuv -threads 1 -idct simple -dct fastint -c zlib -flags +bitexact -sws_flags +accurate_rnd+bitexact -fflags +bitexact -f avi -y /<<PKGBUILDDIR>>/debian/standard/tests/data/fate/vsynth2-zlib.avi
> >  /<<PKGBUILDDIR>>/debian/standard/ffmpeg -nostdin -nostats -cpuflags all -threads 1 -idct simple -flags +bitexact -sws_flags +accurate_rnd+bitexact -fflags +bitexact -hwaccel none -threads 1 -thread_type frame+slice -i /<<PKGBUILDDIR>>/debian/standard/tests/data/fate/vsynth2-zlib.avi -threads 1 -idct simple -dct fastint -s 352x288 -pix_fmt yuv420p -vsync 0 -flags +bitexact -sws_flags +accurate_rnd+bitexact -fflags +bitexact -f rawvideo -y /<<PKGBUILDDIR>>/debian/standard/tests/data/fate/vsynth2-zlib.out.rawvideo
> > make[2]: Leaving directory '/<<PKGBUILDDIR>>/debian/standard'
> > make[2]: write error: stdout
> > dh_auto_test: cd debian/standard && make -j4 -O check -k returned exit code 1
> > make[1]: *** [debian/rules:231: override_dh_auto_test-arch] Error 25
> > make[1]: Leaving directory '/<<PKGBUILDDIR>>'
> > make: *** [debian/rules:192: binary] Error 2
> > dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
> 
> This can be seen on the reproducible builds first seen 2018-03-15
> affecting 3.4 and 3.5 in experimental.
> 
> I'm guessing this has something to do with "make -O" which was enabled
> recently in debhelper, but I haven't checked.
> 
> James
> 

Hi James,

In a recent upload, debhelper started using -Oline instead of -O.  Does
that solve this problem for you?  (It was done unrelated to this bug,
but looking at the documentation for -O, I suspect it might help here as
well)

Thanks,
~Niels