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/remote/rdesktop/default.nix

@@ -0,0 +1,34 @@
+{ lib, stdenv, fetchFromGitHub, openssl, libX11, krb5, libXcursor, libtasn1
+, nettle, gnutls, pkg-config, autoreconfHook, libiconv
+, enableCredssp ? (!stdenv.isDarwin)
+} :
+
+stdenv.mkDerivation (rec {
+  pname = "rdesktop";
+  version = "1.9.0";
+
+  src = fetchFromGitHub {
+    owner = pname;
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "1s6k1jwd28y38ymk3lfv76ch4arpfwrbdhpkbnwwy3fc4617gb78";
+  };
+
+  nativeBuildInputs = [pkg-config autoreconfHook];
+  buildInputs = [openssl libX11 libXcursor libtasn1 nettle gnutls]
+    ++ lib.optional enableCredssp krb5
+    ++ lib.optional stdenv.isDarwin libiconv;
+
+  configureFlags = [
+    "--with-ipv6"
+    "--with-openssl=${openssl.dev}"
+    "--disable-smartcard"
+  ] ++ lib.optional (!enableCredssp) "--disable-credssp";
+
+  meta = {
+    description = "Open source client for Windows Terminal Services";
+    homepage = "http://www.rdesktop.org/";
+    platforms = lib.platforms.linux ++ lib.platforms.darwin;
+    license = lib.licenses.gpl2;
+  };
+})