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/tools/virtualization/udocker/default.nix

@@ -0,0 +1,49 @@
+{ lib
+, fetchFromGitHub
+, singularity
+, python3Packages
+}:
+
+python3Packages.buildPythonApplication rec {
+  pname = "udocker";
+  version = "1.3.1";
+
+  src = fetchFromGitHub {
+    owner = "indigo-dc";
+    repo = "udocker";
+    rev = "v${version}";
+    sha256 = "0dfsjgidsnah8nrclrq10yz3ja859123z81kq4zdifbrhnrn5a2x";
+  };
+
+  # crun patchelf proot runc fakechroot
+  # are download statistically linked during runtime
+  buildInputs = [
+    singularity
+  ] ++ (with python3Packages; [
+    pytest-runner
+    pycurl
+  ]);
+
+  checkInputs = with python3Packages; [
+    pytestCheckHook
+  ];
+
+  disabledTests = [
+    "test_05__get_volume_bindings"
+  ];
+
+  disabledTestPaths = [
+    # Network
+    "tests/unit/test_curl.py"
+    "tests/unit/test_dockerioapi.py"
+  ];
+
+  meta = with lib; {
+    description = "basic user tool to execute simple docker containers in user space without root privileges";
+    homepage = "https://indigo-dc.gitbooks.io/udocker";
+    license = licenses.asl20;
+    maintainers = [ maintainers.bzizou ];
+    platforms = platforms.linux;
+  };
+
+}