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/os-specific/linux/gtkgreet/default.nix

@@ -0,0 +1,50 @@
+{ stdenv
+, lib
+, fetchFromSourcehut
+, pkg-config
+, cmake
+, meson
+, ninja
+, gtk3
+, gtk-layer-shell
+, json_c
+, scdoc
+}:
+
+stdenv.mkDerivation rec {
+  pname = "gtkgreet";
+  version = "0.7";
+
+  src = fetchFromSourcehut {
+    owner = "~kennylevinsen";
+    repo = pname;
+    rev = version;
+    sha256 = "ms+2FdtzzNlmlzNxFhu4cpX5H+5H+9ZOtZ0p8uVA3lo=";
+  };
+
+  nativeBuildInputs = [
+    pkg-config
+    meson
+    ninja
+    cmake
+  ];
+
+  buildInputs = [
+    gtk3
+    gtk-layer-shell
+    json_c
+    scdoc
+  ];
+
+  mesonFlags = [
+    "-Dlayershell=enabled"
+  ];
+
+  meta = with lib; {
+    description = "GTK based greeter for greetd, to be run under cage or similar";
+    homepage = "https://git.sr.ht/~kennylevinsen/gtkgreet";
+    license = licenses.gpl3Plus;
+    maintainers = with maintainers; [ luc65r ];
+    platforms = platforms.linux;
+  };
+}