anchor.diff:  { lib, stdenv
   , fetchFromGitHub
  -, fetchpatch
   , boost
   , cmake
   , ilmbase
  
positive.code: , openexr
  , robin-map
  , unzip
  }:
  
  stdenv.mkDerivation rec {
    pname = "openimageio";
    version = "2.1.9.0";
  
    src = fetchFromGitHub {
      owner = "OpenImageIO";
      repo = "oiio";
      rev = "Release-${version}";
      sha256 = "1bbxx3bcc5jlb90ffxbk29gb8227097rdr8vg97vj9axw2mjd5si";
    };
  
    patches = [
      (fetchpatch {
        url = "https://github.com/OpenImageIO/oiio/pull/2441/commits/e9bdd69596103edf41b659ad8ab0ca4ce002f6f5.patch";
        sha256 = "0x1wmjf1jrm19d1izhs1cs3y1if9al1zx48lahkfswyjag3r5dn0";
      })
    ];
  
    outputs = [ "bin" "out" "dev" "doc" ];
  
  
negative.code:     opencolorio
      openexr
      robin-map
      fmt
    ];
  
    cmakeFlags = [
  