anchor.diff:          inherit officialRelease;
           buildInputs = [
             pkgconfig 
  -          strategoPackages.aterm 
  -          strategoPackages.sdf
  -          strategoPackages.strategoxt 
  -          strategoPackages.javafront 
             libtool_1_5 
             automake110x 
             autoconf
             ant 
  -        ];
  +        ] ++ strPkgs ;
         };
   
   
  
positive.code: }:
  
  let
  
    pkgs = import nixpkgs {};
  
  
negative.code:         name = "webdsl";
          src = tarball;
          buildInputs = [
            pkgconfig 
          ] ++ strPkgs ++ lib.optional stdenv.isLinux apacheAnt;
          
          doCheck = if stdenv.isLinux then true else false;
        };
  