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/unix-errno/default.nix

@@ -0,0 +1,22 @@
+{ lib, buildDunePackage, fetchurl, ctypes, integers, result }:
+
+buildDunePackage rec {
+  pname = "unix-errno";
+  version = "0.6.1";
+
+  minimalOCamlVersion = "4.03.0"; # Specified to be 4.01.0, but it's actually 4.03
+
+  src = fetchurl {
+    url = "https://github.com/xapi-project/ocaml-unix-errno/releases/download/${version}/unix-errno-${version}.tbz";
+    sha256 = "sha256-jZqtHwUKTffjuOP2jdKKQRtEOBKyclhfeiPO96hEj4c=";
+  };
+
+  propagatedBuildInputs = [ ctypes integers result ];
+
+  meta = with lib; {
+    homepage = "https://github.com/xapi-project/ocaml-unix-errno"; # This is the repo used in the opam package
+    description = "Unix errno types, maps, and support for OCaml";
+    license = with licenses; [ isc lgpl21Only ]; # All the files indicate ISC, but there's an LGPL LICENSE file
+    maintainers = with maintainers; [ dandellion ];
+  };
+}