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/dleyna-core/default.nix

@@ -0,0 +1,42 @@
+{ stdenv
+, lib
+, fetchFromGitHub
+, meson
+, ninja
+, pkg-config
+, gupnp
+}:
+
+stdenv.mkDerivation rec {
+  pname = "dleyna-core";
+  version = "0.7.0";
+
+  outputs = [ "out" "dev" ];
+
+  setupHook = ./setup-hook.sh;
+
+  src = fetchFromGitHub {
+    owner = "phako";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "i4L9+iyAdBNtgImbD54jkjYL5hvzeZ2OaAyFrcFmuG0=";
+  };
+
+  nativeBuildInputs = [
+    meson
+    ninja
+    pkg-config
+  ];
+
+  propagatedBuildInputs = [
+    gupnp
+  ];
+
+  meta = with lib; {
+    description = "Library of utility functions that are used by the higher level dLeyna";
+    homepage = "https://github.com/phako/dleyna-core";
+    maintainers = with maintainers; [ jtojnar ];
+    platforms = platforms.linux;
+    license = licenses.lgpl21Only;
+  };
+}

pkgs/development/libraries/dleyna-core/setup-hook.sh

@@ -0,0 +1,8 @@
+addDleynaConnectorPath () {
+    if test -d "$1/lib/dleyna-1.0/connectors"
+    then
+        export DLEYNA_CONNECTOR_PATH="${DLEYNA_CONNECTOR_PATH-}${DLEYNA_CONNECTOR_PATH:+:}$1/lib/dleyna-1.0/connectors"
+    fi
+}
+
+addEnvHooks "$targetOffset" addDleynaConnectorPath