anchor.diff:      tar xvf build/distributions/mucommander-${version}.tar --directory=$out --strip=1
       wrapProgram $out/bin/mucommander \
         --prefix XDG_DATA_DIRS : ${gsettings-desktop-schemas}/share/gsettings-schemas/${gsettings-desktop-schemas.name} \
  -      --set JAVA_HOME ${jre}
  +      --set JAVA_HOME ${jdk11}
     '';
   
     meta = with stdenv.lib; {
  
positive.code:   deps = stdenv.mkDerivation {
      name = "${name}-deps";
      inherit src postPatch;
      nativeBuildInputs = [ gradle_4_10 perl ];
      buildPhase = ''
        export GRADLE_USER_HOME=$(mktemp -d)
        gradle --no-daemon build
  
negative.code: { stdenv, fetchFromGitHub, gradle_6, perl, makeWrapper, jdk11, gsettings-desktop-schemas }:
  
  let
    version = "0.9.3-3";
  