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/cpptoml/default.nix

@@ -0,0 +1,34 @@
+{ lib, stdenv, fetchFromGitHub, cmake, libcxxCmakeModule ? false }:
+
+stdenv.mkDerivation rec {
+  pname = "cpptoml";
+  version = "0.4.0";
+
+  src = fetchFromGitHub {
+    owner = "skystrife";
+    repo = "cpptoml";
+    rev = "fededad7169e538ca47e11a9ee9251bc361a9a65";
+    sha256 = "0zlgdlk9nsskmr8xc2ajm6mn1x5wz82ssx9w88s02icz71mcihrx";
+  };
+
+  nativeBuildInputs = [ cmake ];
+
+  cmakeFlags = [
+    # If this package is built with clang it will attempt to
+    # use libcxx via the Cmake find_package interface.
+    # The default libcxx stdenv in llvmPackages doesn't provide
+    # this and so will fail.
+    "-DENABLE_LIBCXX=${if libcxxCmakeModule then "ON" else "OFF"}"
+    "-DCPPTOML_BUILD_EXAMPLES=OFF"
+  ];
+
+  outputs = [ "out" ];
+
+  meta = with lib; {
+    description = "C++ TOML configuration library";
+    homepage = "https://github.com/skystrife/cpptoml";
+    license = licenses.mit;
+    maintainers = with maintainers; [ photex ];
+    platforms = platforms.all;
+  };
+}