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/mygui/default.nix

@@ -0,0 +1,30 @@
+{  lib, stdenv, fetchFromGitHub, libX11, cmake, ois, freetype, libuuid,
+   boost, pkg-config, withOgre ? false, ogre ? null, libGL, libGLU ? null } :
+
+let
+  renderSystem = if withOgre then "3" else "4";
+in stdenv.mkDerivation rec {
+  pname = "mygui";
+  version = "3.4.0";
+
+  src = fetchFromGitHub {
+    owner = "MyGUI";
+    repo = "mygui";
+    rev = "MyGUI${version}";
+    sha256 = "0a4zi8w18pjj813n7kmxldl1d9r1jp0iyhkw7pbqgl8f7qaq994w";
+  };
+
+  nativeBuildInputs = [ cmake pkg-config ];
+  buildInputs = [ libX11 ois freetype libuuid boost ]
+    ++ (if withOgre then [ ogre ] else [ libGL libGLU ]);
+
+  # Tools are disabled due to compilation failures.
+  cmakeFlags = [ "-DMYGUI_BUILD_TOOLS=OFF" "-DMYGUI_BUILD_DEMOS=OFF" "-DMYGUI_RENDERSYSTEM=${renderSystem}" ];
+
+  meta = with lib; {
+    homepage = "http://mygui.info/";
+    description = "Library for creating GUIs for games and 3D applications";
+    license = licenses.lgpl3Plus;
+    platforms = platforms.linux;
+  };
+}