anchor.diff:  }:
   
   let
  +  strPkgs = with pkgs; [
  +    strategoPackages018.aterm 
  +    strategoPackages018.sdf
  +    strategoPackages018.strategoxt 
  +    strategoPackages018.javafront 
  +  ];
   
     pkgs = import nixpkgs {};
   
  
positive.code:         inherit officialRelease;
          buildInputs = [
            pkgconfig 
            strategoPackages.aterm 
            strategoPackages.sdf
            strategoPackages.strategoxt 
            strategoPackages.javafront 
            libtool_1_5 
            automake110x 
            autoconf
            ant 
          ];
        };
  
  
  
negative.code:       releaseTools.nixBuild {
          name = "webdsl-java";
          src = tarball;
          buildInputs = [pkgconfig ecj apacheAnt strcJava which fastjar jdk] ++ strPkgs;
  
          configureFlags = ["--enable-java-backend"] ;
  
  