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/tools/misc/libtree/default.nix

@@ -0,0 +1,42 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, binutils
+, chrpath
+, cmake
+, cxxopts
+, elfio
+, termcolor
+, gtest
+}:
+
+stdenv.mkDerivation rec {
+  pname = "libtree";
+  version = "3.1.0";
+
+  src = fetchFromGitHub {
+    owner = "haampie";
+    repo = "libtree";
+    rev = "v${version}";
+    sha256 = "sha256-C5QlQsBL9Als80Tv13ex2XS5Yj50Ht8eDfGYAtnh/HI=";
+  };
+
+  buildInputs = [ cxxopts elfio termcolor ];
+
+  makeFlags = [ "PREFIX=$(out)" ];
+
+  # note: "make check" returns exit code 0 even when the tests fail.
+  # This has been reported upstream:
+  #  https://github.com/haampie/libtree/issues/77
+  checkInputs = [ gtest ];
+  checkTarget = [ "check" ];
+  doCheck = true;
+
+  meta = with lib; {
+    description = "Tree ldd with an option to bundle dependencies into a single folder";
+    homepage = "https://github.com/haampie/libtree";
+    license = licenses.mit;
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ prusnak rardiol ];
+  };
+}