anchor.diff:      };
       "9.9" = {  # Git
         fetchzipversion = 6;
  -      version = "2018.04.11";
  -      rev = "a26c9fdd1b4c047d6c89e29774928fd7bf347e8b";
  -      sha256 = "70cab5aa0029ce65112f295425911daac9c8af87155b9709e6c548e01a5e0c09";
  +      version = "2018.04.30";
  +      rev = "0807a771600956e1f3e36a202fd3877418541eb0";
  +      sha256 = "90a0a74d616c5334439f951e0a2496a36eb026e3c23f310f75e652427d91a810";
       };
     };
     source = sources."${channel}";
  
positive.code:     "--disable-libiec61883"
      #"--${boolEn (ilbc != null)}-libilbc"
      "--disable-libilbc"
      (fflag "--${boolEn (jack2_lib != null)}-libjack" "3.5")
      "--${boolEn (kvazaar != null)}-libkvazaar"
      "--${boolEn (libmodplug != null)}-libmodplug"
      "--${boolEn (lame != null)}-libmp3lame"
  
negative.code:     (fflag "--${boolEn (
        nv-codec-headers != null
        && nvidia-cuda-toolkit != null
        && nvidia-drivers != null)}-cuvid" "4.0")
      "--disable-d3d11va"  # Windows
      "--disable-dxva2"  # Windows
      (fflag "--${boolEn (
        nv-codec-headers != null
        && nvidia-cuda-toolkit != null
        && nvidia-drivers != null)}-ffnvcodec" "4.0")
      "--${boolEn (libdrm != null)}-libdrm"
      "--${boolEn (mfx-dispatcher != null)}-libmfx"
      "--${boolEn libnppSupport}-libnpp"
  