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/servers/tt-rss/default.nix

@@ -0,0 +1,36 @@
+{ lib, stdenv, fetchurl }:
+
+stdenv.mkDerivation rec {
+  pname = "tt-rss";
+  year = "21";
+  month = "06";
+  day = "21";
+  version = "20${year}-${month}-${day}";
+  rev = "cd26dbe64c9b14418f0b2d826a38a35c6bf8a270";
+
+  src = fetchurl {
+    url = "https://git.tt-rss.org/fox/tt-rss/archive/${rev}.tar.gz";
+    sha256 = "1dpmzi7hknv5rk2g1iw13r8zcxcwrhkd5hhf292ml0dw3cwki0gm";
+  };
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir $out
+    cp -ra * $out/
+
+    # see the code of Config::get_version(). you can check that the version in
+    # the footer of the preferences pages is not UNKNOWN
+    echo "${year}.${month}" > $out/version_static.txt
+
+    runHook postInstall
+  '';
+
+  meta = with lib; {
+    description = "Web-based news feed (RSS/Atom) aggregator";
+    license = licenses.gpl2Plus;
+    homepage = "https://tt-rss.org";
+    maintainers = with maintainers; [ globin zohl ];
+    platforms = platforms.all;
+  };
+}