anchor.diff: -{ stdenv, fetchFromGitHub, jre, git, gradle_4_10, perl, makeWrapper }:
  +{ stdenv, fetchFromGitHub, jre, git, gradle_4, perl, makeWrapper }:
   
   let
     name = "mxisd-${version}";
  
positive.code: in
  stdenv.mkDerivation {
    inherit name src version;
    nativeBuildInputs = [ gradle_4_10 perl makeWrapper ];
    buildInputs = [ jre ];
  
    patches = [ ./0001-gradle.patch ];
  
negative.code:   deps = stdenv.mkDerivation {
      name = "${name}-deps";
      inherit src;
      nativeBuildInputs = [ gradle_4 perl git ];
  
      buildPhase = ''
        export MXISD_BUILD_VERSION=${rev}
  