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/zxing-cpp/default.nix

@@ -0,0 +1,45 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, pkg-config
+, cmake
+}:
+
+stdenv.mkDerivation rec {
+  pname = "zxing-cpp";
+  version = "1.2.0";
+
+  src = fetchFromGitHub {
+    owner = "nu-book";
+    repo = pname;
+    rev = "v${version}";
+    hash = "sha256-M565VNKhSmYFmCMEI9UFuHWNZWeHrf9qzZkMAw9LUr4=";
+  };
+
+  nativeBuildInputs = [
+    cmake
+    pkg-config
+  ];
+
+  cmakeFlags = [
+    "-DBUILD_EXAMPLES=OFF"
+    "-DBUILD_BLACKBOX_TESTS=OFF"
+  ];
+
+  meta = with lib; {
+    homepage = "https://github.com/nu-book/zxing-cpp";
+    description = "C++ port of zxing (a Java barcode image processing library)";
+    longDescription = ''
+      ZXing-C++ ("zebra crossing") is an open-source, multi-format 1D/2D barcode
+      image processing library implemented in C++.
+
+      It was originally ported from the Java ZXing Library but has been
+      developed further and now includes many improvements in terms of quality
+      and performance. It can both read and write barcodes in a number of
+      formats.
+    '';
+    license = licenses.asl20;
+    maintainers = with maintainers; [ AndersonTorres ];
+    platforms = with platforms; unix;
+  };
+}