anchor.diff:  , cmake
   , fetchFromBitbucket
   , fetchurl
  +, lib
   , ninja
   , yasm
   
  
positive.code:     rm -v $out/lib/libx265.a
    '';
  
    meta = with stdenv.lib; {
      description = "Library for encoding h.265/HEVC video streams";
      homepage = http://x265.org;
      license = licenses.gpl2;
  
negative.code:     cmakeFlags = [
        "-DENABLE_CLI=OFF"
        "-DENABLE_SHARED=OFF"
        "-DENABLE_HDR10_PLUS=ON"
        "-DEXPORT_C_API=OFF"
        "-DHIGH_BIT_DEPTH=ON"
        "-DLINKED_8BIT=OFF"
  