anchor.diff:  , python
   , json_c
   , zchunk
  -, libmodulemd_1
  +, libmodulemd
   , utillinux
   , sqlite
   , cppunit
  
positive.code: 
  stdenv.mkDerivation rec {
    pname = "rpm-ostree";
    version = "2020.1";
  
    outputs = [ "out" "dev" "man" "devdoc" ];
  
    src = fetchurl {
      url = "https://github.com/coreos/${pname}/releases/download/v${version}/${pname}-${version}.tar.xz";
      sha256 = "1xgfppq4fqqvg3cs327bckjpiz6rrn3bbbhg3q5p4j2bzsq89xiz";
    };
  
    nativeBuildInputs = [
  
negative.code:     # required by vendored libdnf
      json_c
      zchunk
      libmodulemd
      utillinux # for smartcols.pc
      sqlite
      cppunit
  