uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/desktops/xfce/applications/xfce4-screensaver/default.nix

@@ -0,0 +1,49 @@
+{ mkXfceDerivation
+, dbus-glib
+, garcon
+, glib
+, gtk3
+, libX11
+, libXScrnSaver
+, libXrandr
+, libwnck
+, libxfce4ui
+, libxklavier
+, pam
+, systemd
+, xfconf
+, lib
+}:
+
+mkXfceDerivation {
+  category = "apps";
+  pname = "xfce4-screensaver";
+  version = "4.16.0";
+
+  sha256 = "1vblqhhzhv85yd5bz1xg14yli82ys5qrjdcabg3l53glbk61n99p";
+
+  buildInputs = [
+    dbus-glib
+    garcon
+    glib
+    gtk3
+    libX11
+    libXScrnSaver
+    libXrandr
+    libwnck
+    libxfce4ui
+    libxklavier
+    pam
+    systemd
+    xfconf
+  ];
+
+  configureFlags = [ "--without-console-kit" ];
+
+  makeFlags = [ "DBUS_SESSION_SERVICE_DIR=$(out)/etc" ];
+
+  meta =  {
+    description = "Screensaver for Xfce";
+    maintainers = with lib.maintainers; [ symphorien ];
+  };
+}