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/applications/misc/sigal/default.nix

@@ -0,0 +1,50 @@
+{ stdenv
+, lib
+, python3
+, ffmpeg
+}:
+
+python3.pkgs.buildPythonApplication rec {
+  pname = "sigal";
+  version = "2.3";
+  format = "setuptools";
+
+  src = python3.pkgs.fetchPypi {
+    inherit version pname;
+    hash = "sha256-4Zsb/OBtU/jV0gThEYe8bcrb+6hW+hnzQS19q1H409Q=";
+  };
+
+  propagatedBuildInputs = with python3.pkgs; [
+    # install_requires
+    jinja2
+    markdown
+    pillow
+    pilkit
+    click
+    blinker
+    natsort
+    # extras_require
+    brotli
+    feedgenerator
+    zopfli
+    cryptography
+  ];
+
+  checkInputs = [
+    ffmpeg
+  ] ++ (with python3.pkgs; [
+    pytestCheckHook
+  ]);
+
+  makeWrapperArgs = [
+    "--prefix PATH : ${lib.makeBinPath [ ffmpeg ]}"
+  ];
+
+  meta = with lib; {
+    broken = stdenv.isDarwin;
+    description = "Yet another simple static gallery generator";
+    homepage = "http://sigal.saimon.org/";
+    license = licenses.mit;
+    maintainers = with maintainers; [ domenkozar matthiasbeyer ];
+  };
+}