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/cxxtools/default.nix

@@ -0,0 +1,23 @@
+{ lib, stdenv, fetchurl }:
+
+stdenv.mkDerivation rec {
+  version = "2.2.1";
+  pname = "cxxtools";
+
+  src = fetchurl {
+    url = "http://www.tntnet.org/download/${pname}-${version}.tar.gz";
+    sha256 = "0hp3qkyhidxkdf8qgkwrnqq5bpahink55mf0yz23rjd7rpbbdswc";
+  };
+
+  configureFlags = lib.optional stdenv.isAarch64 "--with-atomictype=pthread";
+
+  enableParallelBuilding = true;
+
+  meta = {
+    homepage = "http://www.tntnet.org/cxxtools.html";
+    description = "Comprehensive C++ class library for Unix and Linux";
+    platforms = lib.platforms.linux ;
+    license = lib.licenses.lgpl21;
+    maintainers = [ lib.maintainers.juliendehos ];
+  };
+}