anchor.diff:      url = "https://raw.githubusercontent.com/lvandeve/lodepng/a70c086077c0eaecbae3845e4da4424de5f43361/lodepng.h";
       sha256 = "14drdikd0vws3wwpyqq7zzm5z3kg98svv4q4w0hr45q6zh6hs0bq";
     };
  +  cimgversion = "89b9d062ec472df3d33989e6d5d2a8b50ba0775c";
     CImgh = fetchurl {
  -    url = "https://raw.githubusercontent.com/dtschump/CImg/572c12d82b2f59ece21be8f52645c38f1dd407e6/CImg.h";
  -    sha256 = "0n4qfxj8j6rmj4svf68gg2pzg8d1pb74bnphidnf8i2paj6lwniz";
  +    url = "https://raw.githubusercontent.com/dtschump/CImg/${cimgversion}/CImg.h";
  +    sha256 = "sha256-NbYpZDNj2oZ+wqoEkRwwCjiujdr+iGOLA0Pa0Ynso6U=";
  +  };
  +  inpainth = fetchurl {
  +    url = "https://raw.githubusercontent.com/dtschump/CImg/${cimgversion}/plugins/inpaint.h";
  +    sha256 = "sha256-cd28a3VOs5002GkthHkbIUrxZfKuGhqIYO4Oxe/2HIQ=";
     };
     plugins = map buildPlugin [
       ({
         pluginName = "arena";
  -      sha256 = "0qba13vn9qdfax7nqlz1ps27zspr5kh795jp1xvbmwjzjzjpkqkf";
  +      sha256 = "tUb6myG03mRieUAfgRZfv5Ap+cLvbpNrLMYCGTiAq8c=";
         nativeBuildInputs = [ pkg-config ];
         buildInputs = [
           pango librsvg librevenge libcdr opencolorio libxml2 libzip
  
positive.code:     license = lib.licenses.gpl2;
      maintainers = [ maintainers.puffnfresh ];
      platforms = platforms.linux;
      broken = true;
    };
  }
  
negative.code:     nativeBuildInputs = [ cmake ];
      buildInputs = [ libpng flex bison ];
    };
    buildPlugin = { pluginName, sha256, nativeBuildInputs ? [], buildInputs ? [], preConfigure ? "", postPatch ? "" }:
      stdenv.mkDerivation {
        pname = "openfx-${pluginName}";
        version = version;
        src = fetchurl {
          url = "https://github.com/NatronGitHub/openfx-${pluginName}/releases/download/Natron-${version}/openfx-${pluginName}-Natron-${version}.tar.xz";
          inherit sha256;
        };
        inherit nativeBuildInputs buildInputs postPatch;
        preConfigure = ''
          makeFlagsArray+=("CONFIG=release")
          makeFlagsArray+=("PLUGINPATH=$out/Plugins/OFX/Natron")
  