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/cctz/default.nix

@@ -0,0 +1,33 @@
+{ lib, stdenv, fetchFromGitHub, darwin }:
+
+stdenv.mkDerivation rec {
+  pname = "cctz";
+  version = "2.3";
+
+  src = fetchFromGitHub {
+    owner = "google";
+    repo = "cctz";
+    rev = "v${version}";
+    sha256 = "0254xfwscfkjc3fbvx6qgifr3pwkc2rb03z8pbvvqy098di9alhr";
+  };
+
+  makeFlags = [ "PREFIX=$(out)" ];
+
+  buildInputs = lib.optional stdenv.isDarwin darwin.apple_sdk.frameworks.Foundation;
+
+  installTargets = [ "install_hdrs" "install_shared_lib" ];
+
+  postInstall = lib.optionalString stdenv.isDarwin ''
+    install_name_tool -id $out/lib/libcctz.so $out/lib/libcctz.so
+  '';
+
+  enableParallelBuilding = true;
+
+  meta = with lib; {
+    homepage = "https://github.com/google/cctz";
+    description = "C++ library for translating between absolute and civil times";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ orivej ];
+    platforms = platforms.all;
+  };
+}