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/medfile/default.nix

@@ -0,0 +1,29 @@
+{ lib, stdenv, fetchurl, cmake, hdf5 }:
+
+stdenv.mkDerivation rec {
+  pname = "medfile";
+  version = "4.1.0";
+
+  src = fetchurl {
+    url = "http://files.salome-platform.org/Salome/other/med-${version}.tar.gz";
+    sha256 = "1khzclkrd1yn9mz3g14ndgpsbj8j50v8dsjarcj6kkn9zgbbazc4";
+  };
+
+  patches = [
+    ./hdf5-1.12.patch
+  ];
+
+  nativeBuildInputs = [ cmake ];
+  buildInputs = [ hdf5 ];
+
+  checkPhase = "make test";
+
+  postInstall = "rm -r $out/bin/testc";
+
+  meta = with lib; {
+    description = "Library to read and write MED files";
+    homepage = "http://salome-platform.org/";
+    platforms = platforms.linux;
+    license = licenses.lgpl3Plus;
+  };
+}