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/nfdump/default.nix

@@ -0,0 +1,44 @@
+{ lib, stdenv, fetchFromGitHub
+, autoconf, automake, libtool, pkg-config
+, bzip2, libpcap, flex, bison }:
+
+let version = "1.6.23"; in
+
+stdenv.mkDerivation {
+  pname = "nfdump";
+  inherit version;
+
+  src = fetchFromGitHub {
+    owner = "phaag";
+    repo = "nfdump";
+    rev = "v${version}";
+    sha256 = "sha256-aM7U+JD8EtxEusvObsRgqS0aqfTfF3vYxCqvw0bgX20=";
+  };
+
+  nativeBuildInputs = [ autoconf automake flex libtool pkg-config bison ];
+  buildInputs = [ bzip2 libpcap ];
+
+  preConfigure = ''
+    # The script defaults to glibtoolize on darwin, so we pass the correct
+    # name explicitly.
+    LIBTOOLIZE=libtoolize ./autogen.sh
+  '';
+
+  configureFlags = [
+    "--enable-nsel"
+    "--enable-sflow"
+    "--enable-readpcap"
+    "--enable-nfpcapd"
+  ];
+
+  meta = with lib; {
+    description = "Tools for working with netflow data";
+    longDescription = ''
+      nfdump is a set of tools for working with netflow data.
+    '';
+    homepage = "https://github.com/phaag/nfdump";
+    license = licenses.bsd3;
+    maintainers = [ maintainers.takikawa ];
+    platforms = platforms.unix;
+  };
+}