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/blockchains/digibyte/default.nix

@@ -0,0 +1,69 @@
+{ lib, stdenv
+, fetchFromGitHub
+, openssl
+, boost
+, libevent
+, autoreconfHook
+, db4
+, pkg-config
+, protobuf
+, hexdump
+, zeromq
+, withGui
+, qtbase ? null
+, qttools ? null
+, wrapQtAppsHook ? null
+}:
+
+with lib;
+
+stdenv.mkDerivation rec {
+  pname = "digibyte";
+  version = "7.17.2";
+
+  name = pname + toString (optional (!withGui) "d") + "-" + version;
+
+  src = fetchFromGitHub {
+    owner = pname;
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "04czj7mx3wpbx4832npk686p9pg5zb6qwlcvnmvqf31hm5qylbxj";
+  };
+
+  nativeBuildInputs = [
+    autoreconfHook
+    pkg-config
+    hexdump
+  ] ++ optionals withGui [
+    wrapQtAppsHook
+  ];
+
+  buildInputs = [
+    openssl
+    boost
+    libevent
+    db4
+    zeromq
+  ] ++ optionals withGui [
+    qtbase
+    qttools
+    protobuf
+  ];
+
+  enableParallelBuilding = true;
+
+  configureFlags = [
+      "--with-boost-libdir=${boost.out}/lib"
+  ] ++ optionals withGui [
+      "--with-gui=qt5"
+      "--with-qt-bindir=${qtbase.dev}/bin:${qttools.dev}/bin"
+  ];
+
+  meta = {
+    description = "DigiByte (DGB) is a rapidly growing decentralized, global blockchain";
+    homepage = "https://digibyte.io/";
+    license = licenses.mit;
+    maintainers = [ maintainers.mmahut ];
+    platforms = platforms.linux;
+  };
+}