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/development/libraries/gtkmm/2.x.nix

@@ -0,0 +1,42 @@
+{ lib, stdenv, fetchurl, pkg-config, gtk2, glibmm, cairomm, pangomm, atkmm }:
+
+stdenv.mkDerivation rec {
+  pname = "gtkmm";
+  version = "2.24.5";
+
+  src = fetchurl {
+    url = "mirror://gnome/sources/gtkmm/${lib.versions.majorMinor version}/gtkmm-${version}.tar.xz";
+    sha256 = "0680a53b7bf90b4e4bf444d1d89e6df41c777e0bacc96e9c09fc4dd2f5fe6b72";
+  };
+
+  outputs = [ "out" "dev" ];
+
+  nativeBuildInputs = [ pkg-config ];
+
+  propagatedBuildInputs = [ glibmm gtk2 atkmm cairomm pangomm ];
+
+  doCheck = true;
+
+  enableParallelBuilding = true;
+
+  meta = {
+    description = "C++ interface to the GTK graphical user interface library";
+
+    longDescription = ''
+      gtkmm is the official C++ interface for the popular GUI library
+      GTK.  Highlights include typesafe callbacks, and a
+      comprehensive set of widgets that are easily extensible via
+      inheritance.  You can create user interfaces either in code or
+      with the Glade User Interface designer, using libglademm.
+      There's extensive documentation, including API reference and a
+      tutorial.
+    '';
+
+    homepage = "https://gtkmm.org/";
+
+    license = lib.licenses.lgpl2Plus;
+
+    maintainers = with lib.maintainers; [ raskin ];
+    platforms = lib.platforms.unix;
+  };
+}