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/dns/pdns-recursor/default.nix

@@ -0,0 +1,42 @@
+{ lib, stdenv, fetchurl, pkg-config, boost, nixosTests
+, openssl, systemd, lua, luajit, protobuf
+, enableProtoBuf ? false
+}:
+
+stdenv.mkDerivation rec {
+  pname = "pdns-recursor";
+  version = "4.6.2";
+
+  src = fetchurl {
+    url = "https://downloads.powerdns.com/releases/pdns-recursor-${version}.tar.bz2";
+    sha256 = "sha256-2mSYUHOf3XuvLfZFrMl3UszTkJc7VrjiUXHqew0lrSA=";
+  };
+
+  nativeBuildInputs = [ pkg-config ];
+  buildInputs = [
+    boost openssl systemd
+    lua luajit
+  ] ++ lib.optional enableProtoBuf protobuf;
+
+  configureFlags = [
+    "--enable-reproducible"
+    "--enable-systemd"
+  ];
+
+  enableParallelBuilding = true;
+
+  passthru.tests = {
+    inherit (nixosTests) pdns-recursor ncdns;
+  };
+
+  meta = with lib; {
+    description = "A recursive DNS server";
+    homepage = "https://www.powerdns.com/";
+    platforms = platforms.linux;
+    badPlatforms = [
+      "i686-linux"  # a 64-bit time_t is needed
+    ];
+    license = licenses.gpl2Only;
+    maintainers = with maintainers; [ rnhmjoj ];
+  };
+}