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/networking/s4cmd/default.nix

@@ -0,0 +1,35 @@
+{ lib, python3Packages }:
+
+python3Packages.buildPythonApplication rec {
+  pname = "s4cmd";
+  version = "2.1.0";
+
+  src = python3Packages.fetchPypi {
+    inherit pname version;
+    sha256 = "0d4mx98i3qhvlmr9x898mjvf827smzx6x5ji6daiwgjdlxc60mj2";
+  };
+
+  propagatedBuildInputs = with python3Packages; [ boto3 pytz ];
+
+  # The upstream package tries to install some bash shell completion scripts in /etc.
+  # Setuptools is bugged and doesn't handle --prefix properly: https://github.com/pypa/setuptools/issues/130
+  patchPhase = ''
+    sed -i '/ data_files=/d' setup.py
+    sed -i 's|os.chmod("/etc.*|pass|' setup.py
+  '';
+
+  # Replace upstream's s4cmd wrapper script with the built-in Nix wrapper
+  postInstall = ''
+    ln -fs $out/bin/s4cmd.py $out/bin/s4cmd
+  '';
+
+  # Test suite requires an S3 bucket
+  doCheck = false;
+
+  meta = with lib; {
+    homepage = "https://github.com/bloomreach/s4cmd";
+    description = "Super S3 command line tool";
+    license = licenses.asl20;
+    maintainers = [ maintainers.bhipple ];
+  };
+}