anchor.diff:  , gtk3
   , gobject-introspection
   , libxml2
  +, fetchpatch
   }:
   stdenv.mkDerivation rec {
     pname = "deadd-notification-center";
  
positive.code:     sha256 = "12ldr8vppylr90849g3mpjphmnr4lp0vsdkj01a5f4bv4ksx35fm";
    };
  
  
    nativeBuildInputs = [
      autoPatchelfHook
  
negative.code:     hicolor-icon-theme
    ];
  
    buildFlags = [
      # Exclude stack from `make all` to use the prebuilt binary from .out/
      "service"
    ];
  
    makeFlags = [
      "PREFIX=${placeholder "out"}"
      "SERVICEDIR_SYSTEMD=${placeholder "out"}/etc/systemd/user"
      "SERVICEDIR_DBUS=${placeholder "out"}/share/dbus-1/services"
      # Override systemd auto-detection.
      "SYSTEMD=1"
    ];
  
    meta = with lib; {
      description = "A haskell-written notification center for users that like a desktop with style";
  