anchor.diff:      */
       name = "focusblur-3.2.6";
       buildInputs = with pkgs; [ fftwSinglePrec ];
  -    nativeBuildInputs = with pkgs; [ intltool ];
       patches = [ ./patches/focusblur-glib.patch ];
       postInstall = "fail";
       installPhase = "installPlugins src/focusblur";
  
positive.code:   // {
        name = "${a.name}-${gimp.name}-plugin";
        buildInputs = [ gimp gimp.gtk glib ] ++ (a.buildInputs or []);
        nativeBuildInputs = [ pkgconfig ] ++ (a.nativeBuildInputs or []);
      }
    );
  
  
negative.code: 
  { pkgs, gimp }:
  let
    inherit (pkgs) stdenv fetchurl pkgconfig intltool glib fetchFromGitHub;
    inherit (gimp) targetPluginDir targetScriptDir;
  
    pluginDerivation = a: stdenv.mkDerivation ({
  