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/ocaml-modules/cairo2/default.nix

@@ -0,0 +1,35 @@
+{ stdenv, lib, fetchurl, buildDunePackage, ocaml, dune-configurator, pkg-config, cairo
+, ApplicationServices }:
+
+buildDunePackage rec {
+  pname = "cairo2";
+  version = "0.6.2";
+
+  src = fetchurl {
+    url = "https://github.com/Chris00/ocaml-cairo/releases/download/${version}/cairo2-${version}.tbz";
+    sha256 = "sha256-a7P1kiVmIwT6Fhtwxs29ffgO4iexsulxUoc9cnJmEK4=";
+  };
+
+  minimalOCamlVersion = "4.02";
+  useDune2 = true;
+
+  nativeBuildInputs = [ pkg-config ];
+  buildInputs = [ cairo dune-configurator ] ++ lib.optionals stdenv.isDarwin [ ApplicationServices ];
+
+  doCheck = !(stdenv.isDarwin
+  # https://github.com/Chris00/ocaml-cairo/issues/19
+  || lib.versionAtLeast ocaml.version "4.10");
+
+  meta = with lib; {
+    homepage = "https://github.com/Chris00/ocaml-cairo";
+    description = "Binding to Cairo, a 2D Vector Graphics Library";
+    longDescription = ''
+      This is a binding to Cairo, a 2D graphics library with support for
+      multiple output devices. Currently supported output targets include
+      the X Window System, Quartz, Win32, image buffers, PostScript, PDF,
+      and SVG file output.
+    '';
+    license = licenses.lgpl3;
+    maintainers = with maintainers; [ jirkamarsik vbgl ];
+  };
+}