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/xmlm/default.nix

@@ -0,0 +1,35 @@
+{ lib, stdenv, fetchurl, ocaml, findlib, ocamlbuild, topkg }:
+let
+  pname = "xmlm";
+  webpage = "https://erratique.ch/software/${pname}";
+in
+
+if lib.versionOlder ocaml.version "4.02"
+then throw "xmlm is not available for OCaml ${ocaml.version}"
+else
+
+stdenv.mkDerivation rec {
+  name = "ocaml${ocaml.version}-${pname}-${version}";
+  version = "1.3.0";
+
+  src = fetchurl {
+    url = "${webpage}/releases/${pname}-${version}.tbz";
+    sha256 = "1rrdxg5kh9zaqmgapy9bhdqyxbbvxxib3bdfg1vhw4rrkp1z0x8n";
+  };
+
+  nativeBuildInputs = [ ocaml findlib ocamlbuild topkg ];
+  buildInputs = [ topkg ];
+
+  strictDeps = true;
+
+  inherit (topkg) buildPhase installPhase;
+
+  meta = with lib; {
+    description = "An OCaml streaming codec to decode and encode the XML data format";
+    homepage = webpage;
+    license = licenses.bsd3;
+    maintainers = [ maintainers.vbgl ];
+    mainProgram = "xmltrip";
+    inherit (ocaml.meta) platforms;
+  };
+}