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/libnabo/default.nix

@@ -0,0 +1,31 @@
+{lib, stdenv, fetchFromGitHub, cmake, eigen, boost}:
+
+stdenv.mkDerivation rec {
+  version = "1.0.7";
+  pname = "libnabo";
+
+  src = fetchFromGitHub {
+    owner = "ethz-asl";
+    repo = "libnabo";
+    rev = version;
+    sha256 = "17vxlmszzpm95vvfdxnm98d5p297i10fyblblj6kf0ynq8r2mpsh";
+  };
+
+  nativeBuildInputs = [ cmake ];
+  buildInputs = [ eigen boost ];
+
+  cmakeFlags = [
+    "-DEIGEN_INCLUDE_DIR=${eigen}/include/eigen3"
+  ];
+
+  doCheck = true;
+  checkTarget = "test";
+
+  meta = with lib; {
+    inherit (src.meta) homepage;
+    description = "A fast K Nearest Neighbor library for low-dimensional spaces";
+    license = licenses.bsd3;
+    platforms   = platforms.linux;
+    maintainers = with maintainers; [ cryptix ];
+  };
+}