anchor.diff:  , libglvnd
   , libomxil-bellagio
   , libpthread-stubs
  -#, libva
  +, libva
   , libvdpau
   , libx11
   , libxcb
  
positive.code:     "--${boolEn (buildConfig != "opengl-dummy")}-xvmc"
      "--${boolEn (buildConfig != "opengl-dummy")}-vdpau"
      "--${boolEn (buildConfig != "opengl-dummy")}-omx"
      # FIXME: We use mesa as libgl at build time and libva depends on libgl
      #"--enable-va"
      # TODO: Figure out how to enable opencl without having a
      #       runtime dependency on clang
      "--disable-opencl"
  
negative.code:     libglvnd
      libpthread-stubs
      libomxil-bellagio
      libva
      libvdpau
      libxt
      llvm
  