anchor.diff:      valhalla libosmscout osrm-backend libmicrohttpd_0_9_70
       libpostal sqlite marisa kyotocabinet boost protobuf date
     ];
  -
  -  # OSMScout server currently defaults to an earlier version of valhalla,
  -  # but valhalla 3.1 support has been added. (See patches above)
  -  # Replace the default valhalla.json with the valhalla 3.1 version
  -  postPatch = ''
  -    mv data/valhalla.json-3.1 data/valhalla.json
  -  '';
   
     qmakeFlags = [
       "SCOUT_FLAVOR=kirigami" # Choose to build the kirigami UI variant
  
positive.code: in
  mkDerivation rec {
    pname = "osmscout-server";
    version = "1.17.1";
  
    src = fetchFromGitHub {
      owner = "rinigus";
      repo = "osmscout-server";
      rev = version;
      sha256 = "0rpsi6nyhcz6bv0jab4vixkxhjmn84xi0q2xz15a097hn46cklx9";
      fetchSubmodules = true;
    };
  
    # Two patches required to work with valhalla 3.1
    patches = [
      # require C++14 to match latest Valhalla
      (fetchpatch {
        url = "https://github.com/rinigus/osmscout-server/commit/78b41b9b4c607fe9bfd6fbd61ae31cb7c8a725cd.patch";
        sha256 = "0gk9mdwa75awl0bj30gm8waj454d8k2yixxwh05m0p550cbv3lg0";
      })
      # add Valhalla 3.1 config
      (fetchpatch {
        url = "https://github.com/rinigus/osmscout-server/commit/584de8bd47700053960fa139a2d7f8d3d184c876.patch";
        sha256 = "0liz72n83q93bzzyyiqjkxa6hp9zjx7v9rgsmpwf88gc4caqm2dz";
      })
    ];
  
    nativeBuildInputs = [ qmake pkg-config qttools ];
    buildInputs = [
  
negative.code: { lib, mkDerivation, fetchFromGitHub, pkg-config
  , qmake, qttools, kirigami2, qtquickcontrols2, qtlocation
  , libosmscout, valhalla, libpostal, osrm-backend, protobuf
  , libmicrohttpd_0_9_70, sqlite, marisa, kyotocabinet, boost
  