anchor.diff:        tbb
         makeWrapper
         embree
  +      gmp
       ]
       ++ (if (!stdenv.isDarwin) then [
         libXi libX11 libXext libXrender
  
positive.code: 
  stdenv.mkDerivation rec {
    pname = "blender";
    version = "2.90.1";
  
    src = fetchurl {
      url = "https://download.blender.org/source/${pname}-${version}.tar.xz";
      sha256 = "169xcmm1zkvab14qdxggqc758xdkqs7r7imwi6yx2fl2djacr3g7";
    };
  
    patches = lib.optional stdenv.isDarwin ./darwin.patch;
  
negative.code: , colladaSupport ? true, opencollada
  , makeWrapper
  , pugixml, SDL, Cocoa, CoreGraphics, ForceFeedback, OpenAL, OpenGL
  , embree, gmp
  }:
  
  with lib;
  