libavfilter/vf_gradfun.c:139: error: Uninitialized Value
  The value read from cpu_flags was never initialized.

libavfilter/vf_gradfun.c:139:21: 
137.     if (HAVE_SSSE3 && cpu_flags & AV_CPU_FLAG_SSSE3)
138.         gf->filter_line = ff_gradfun_filter_line_ssse3;
139.     if (HAVE_SSE && cpu_flags & AV_CPU_FLAG_SSE2)
                         ^
140.         gf->blur_line = ff_gradfun_blur_line_sse2;
141. 
