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/bitcoin-unlimited/default.nix

@@ -0,0 +1,66 @@
+{ lib, stdenv, fetchFromGitHub, pkg-config, autoreconfHook, openssl, db48, boost
+, zlib, miniupnpc, util-linux, protobuf, qrencode, libevent, python3
+, withGui, wrapQtAppsHook ? null, qtbase ? null, qttools ? null
+, Foundation, ApplicationServices, AppKit }:
+
+with lib;
+
+stdenv.mkDerivation rec {
+  pname = "bitcoin" + optionalString (!withGui) "d" + "-unlimited";
+  version = "1.9.2.0";
+
+  src = fetchFromGitHub {
+    owner = "bitcoinunlimited";
+    repo = "bitcoinunlimited";
+    rev = "BCHunlimited${version}";
+    sha256 = "sha256-qUf/GWZHpI57ATTlvRhjDtAjRa8a4uvUb0G9Xcf0j7w=";
+  };
+
+  nativeBuildInputs = [ pkg-config autoreconfHook python3 ]
+    ++ optionals withGui [ wrapQtAppsHook qttools ];
+  buildInputs = [ openssl db48 boost zlib
+                  miniupnpc util-linux protobuf libevent ]
+                  ++ optionals withGui [ qtbase qttools qrencode ]
+                  ++ optionals stdenv.isDarwin [ Foundation ApplicationServices AppKit ];
+
+  configureFlags = [ "--with-boost-libdir=${boost.out}/lib" ]
+                     ++ optionals withGui [ "--with-gui=qt5"
+                                            "--with-qt-bindir=${qtbase.dev}/bin:${qttools.dev}/bin"
+                                          ];
+  enableParallelBuilding = true;
+
+  meta = {
+    description = "Peer-to-peer electronic cash system (Unlimited client)";
+    longDescription= ''
+      Bitcoin is a free open source peer-to-peer electronic cash system that is
+      completely decentralized, without the need for a central server or trusted
+      parties. Users hold the crypto keys to their own money and transact directly
+      with each other, with the help of a P2P network to check for double-spending.
+
+      The Bitcoin Unlimited (BU) project seeks to provide a voice to all
+      stakeholders in the Bitcoin ecosystem.
+
+      Every node operator or miner can currently choose their own blocksize limit
+      by modifying their client. Bitcoin Unlimited makes the process easier by
+      providing a configurable option for the accepted and generated blocksize via
+      a GUI menu. Bitcoin Unlimited further provides a user-configurable failsafe
+      setting allowing you to accept a block larger than your maximum accepted
+      blocksize if it reaches a certain number of blocks deep in the chain.
+
+      The Bitcoin Unlimited client is not a competitive block scaling proposal
+      like BIP-101, BIP-102, etc. Instead it tracks consensus. This means that it
+      tracks the blockchain that the hash power majority follows, irrespective of
+      blocksize, and signals its ability to accept larger blocks via protocol and
+      block versioning fields.
+
+      If you support an increase in the blocksize limit by any means - or just
+      support Bitcoin conflict resolution as originally envisioned by its founder -
+      consider running a Bitcoin Unlimited client.
+    '';
+    homepage = "https://www.bitcoinunlimited.info/";
+    maintainers = with maintainers; [ DmitryTsygankov ];
+    license = licenses.mit;
+    broken = stdenv.isDarwin;
+    platforms = platforms.unix;
+  };
+}