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/python-modules/pygccxml/default.nix

@@ -0,0 +1,26 @@
+{ lib, castxml, fetchFromGitHub, buildPythonPackage,
+llvmPackages }:
+buildPythonPackage rec {
+  pname = "pygccxml";
+  version = "2.2.1";
+
+  src = fetchFromGitHub {
+    owner  = "gccxml";
+    repo   = "pygccxml";
+    rev    = "v${version}";
+    sha256 = "1msqpg3dqn7wjlf91ddljxzz01a3b1p2sy91n36lrsy87lz499gh";
+  };
+
+  buildInputs = [ castxml llvmPackages.libcxxStdenv];
+
+  # running the suite is hard, needs to generate xml_generator.cfg
+  # but the format doesn't accept -isystem directives
+  doCheck = false;
+
+  meta = with lib; {
+    homepage = "https://github.com/gccxml/pygccxml";
+    description = "Python package for easy C++ declarations navigation";
+    license = licenses.boost;
+    maintainers = with maintainers; [ teto ];
+  };
+}