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/development/libraries/libtoxcore/new-api.nix

@@ -0,0 +1,58 @@
+{ lib, stdenv, fetchFromGitHub, autoreconfHook, libsodium, ncurses, libopus
+, libvpx, check, libconfig, pkg-config }:
+
+stdenv.mkDerivation {
+  pname = "tox-core-new";
+  version = "unstable-2016-07-27";
+
+  src = fetchFromGitHub {
+    owner  = "irungentoo";
+    repo   = "toxcore";
+    rev    = "755f084e8720b349026c85afbad58954cb7ff1d4";
+    sha256 = "0ap1gvlyihnfivv235dbrgsxsiiz70bhlmlr5gn1027w3h5kqz8w";
+  };
+
+  NIX_LDFLAGS = "-lgcc_s";
+
+  postPatch = ''
+    # within Nix chroot builds, localhost is unresolvable
+    sed -i -e '/DEFTESTCASE(addr_resolv_localhost)/d' \
+      auto_tests/network_test.c
+    # takes WAAAY too long (~10 minutes) and would timeout
+    sed -i -e '/DEFTESTCASE[^(]*(many_clients\>/d' \
+      auto_tests/tox_test.c
+  '';
+
+  configureFlags = [
+    "--with-libsodium-headers=${libsodium.dev}/include"
+    "--with-libsodium-libs=${libsodium.out}/lib"
+    "--enable-ntox"
+    "--enable-daemon"
+  ];
+
+
+  nativeBuildInputs = [ autoreconfHook pkg-config ];
+  buildInputs = [
+    autoreconfHook libsodium ncurses check libconfig
+  ] ++ lib.optionals (!stdenv.isAarch32) [
+    libopus
+  ];
+
+  propagatedBuildInputs = lib.optionals (!stdenv.isAarch32) [ libvpx ];
+
+  # Some tests fail randomly due to timeout. This kind of problem is well known
+  # by upstream: https://github.com/irungentoo/toxcore/issues/{950,1054}
+  # They don't recommend running tests on 50core machines with other cpu-bound
+  # tests running in parallel.
+  #
+  # NOTE: run the tests locally on your machine before upgrading this package!
+  doCheck = false;
+
+  meta = with lib; {
+    broken = stdenv.isDarwin;
+    description = "P2P FOSS instant messaging application aimed to replace Skype with crypto";
+    license = licenses.gpl3Plus;
+    maintainers = with maintainers; [ ];
+    platforms = platforms.all;
+  };
+}