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/quicktun/default.nix

@@ -0,0 +1,33 @@
+{ lib, stdenv, fetchFromGitHub, libsodium }:
+
+stdenv.mkDerivation {
+  pname = "quicktun";
+  version = "2.2.5";
+
+  src = fetchFromGitHub {
+    owner = "UCIS";
+    repo = "QuickTun";
+    rev = "2d0c6a9cda8c21f921a5d1197aeee92e9568ca39";
+    sha256 = "1ydvwasj84qljfbzh6lmhyzjc20yw24a0v2mykp8afsm97zzlqgx";
+  };
+
+  patches = [ ./tar-1.30.diff ]; # quicktun master seems not to need this
+
+  buildInputs = [ libsodium ];
+
+  buildPhase = "bash build.sh";
+
+  installPhase = ''
+    rm out/quicktun*tgz
+    install -vD out/quicktun* -t $out/bin
+  '';
+
+  meta = with lib; {
+    broken = stdenv.isDarwin;
+    description = "Very simple, yet secure VPN software";
+    homepage = "http://wiki.ucis.nl/QuickTun";
+    maintainers = [ maintainers.fpletz ];
+    platforms = platforms.unix;
+    license = licenses.bsd2;
+  };
+}