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/tools/inputmethods/fcitx-engines/fcitx-m17n/default.nix

@@ -0,0 +1,30 @@
+{ lib, stdenv, fetchurl, cmake, fcitx, gettext, m17n_lib, m17n_db, pkg-config }:
+
+stdenv.mkDerivation rec {
+  pname = "fcitx-m17n";
+  version = "0.2.4";
+
+  src = fetchurl {
+    url = "http://download.fcitx-im.org/fcitx-m17n/${pname}-${version}.tar.xz";
+    sha256 = "15s52h979xz967f8lm0r0qkplig2w3wjck1ymndbg9kvj25ib0ng";
+  };
+
+  nativeBuildInputs = [ cmake pkg-config ];
+  buildInputs = [ fcitx gettext m17n_lib m17n_db ];
+
+  preInstall = ''
+    substituteInPlace im/cmake_install.cmake \
+    --replace ${fcitx} $out
+    '';
+
+  meta = with lib; {
+    isFcitxEngine = true;
+    homepage      = "https://github.com/fcitx/fcitx-m17n";
+    downloadPage  = "http://download.fcitx-im.org/fcitx-table-other/";
+    description   = "Fcitx wrapper for m17n";
+    license       = licenses.gpl3Plus;
+    platforms     = platforms.linux;
+    maintainers   = with maintainers; [ ericsagnes ];
+  };
+
+}