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/networking/feedreaders/castget/default.nix

@@ -0,0 +1,52 @@
+{ lib, stdenv, fetchFromGitHub
+, autoreconfHook
+, pkg-config
+, glib
+, ronn
+, curl
+, id3lib
+, libxml2
+, glibcLocales
+}:
+
+stdenv.mkDerivation rec {
+  pname = "castget";
+  version = "2.0.0";
+
+  src = fetchFromGitHub {
+    owner = "mlj";
+    repo = pname;
+    # Upstream uses `_` instead of `.` for the version
+    rev = "rel_${lib.replaceStrings ["."] ["_"] version}";
+    sha256 = "1129x64rw587q3sdpa3lrgs0gni5f0siwbvmfz8ya4zkbhgi2ik7";
+  };
+
+  # without this, the build fails because of an encoding issue with the manual page.
+  # https://stackoverflow.com/a/17031697/4935114
+  # This requires glibcLocales to be present in the build so it will have an impact.
+  # See https://github.com/NixOS/nixpkgs/issues/8398
+  preBuild = ''
+    export LC_ALL="en_US.UTF-8";
+  '';
+
+  buildInputs = [ glib curl id3lib libxml2 ];
+  nativeBuildInputs = [
+    ronn
+    # See comment on locale above
+    glibcLocales
+    autoreconfHook
+    pkg-config
+  ];
+
+  meta = with lib; {
+    description = "A simple, command-line based RSS enclosure downloader";
+    longDescription = ''
+      castget is a simple, command-line based RSS enclosure downloader. It is
+      primarily intended for automatic, unattended downloading of podcasts.
+    '';
+    homepage = "https://castget.johndal.com/";
+    maintainers = with maintainers; [ doronbehar ];
+    license = licenses.gpl2;
+    platforms = platforms.linux;
+  };
+}