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-libpinyin/datapath.patch

@@ -0,0 +1,16 @@
+--- a/src/utils.cpp
++++ b/src/utils.cpp
+@@ -9,12 +9,7 @@ char* FcitxLibPinyinGetSysPath(LIBPINYIN_LANGUAGE_TYPE type)
+ #ifdef LIBPINYIN_TOOLS_FOUND
+     if (type == LPLT_Simplified) {
+ #endif
+-        /* portable detect here */
+-        if (getenv("FCITXDIR")) {
+-            syspath = fcitx_utils_get_fcitx_path_with_filename("datadir", "libpinyin/data");
+-        } else {
+-            syspath = strdup(LIBPINYIN_PKGDATADIR "/data");
+-        }
++        syspath = strdup(LIBPINYIN_PKGDATADIR "/data");
+ #ifdef LIBPINYIN_TOOLS_FOUND
+     }
+     else {

pkgs/tools/inputmethods/fcitx-engines/fcitx-libpinyin/default.nix

@@ -0,0 +1,55 @@
+{ lib, stdenv, fetchurl, cmake, pkg-config, fcitx, gettext, libpinyin, glib, pcre, dbus, qtwebengine, qtbase, fcitx-qt5 }:
+
+stdenv.mkDerivation rec {
+  pname = "fcitx-libpinyin";
+  version = "0.5.4";
+
+  src = fetchurl {
+    url = "http://download.fcitx-im.org/fcitx-libpinyin/${pname}-${version}.tar.xz";
+    sha256 = "1wvsc21imbgq3chlxfw4aycmkb2vi1bkjj9frvhga2m5b5pq82k5";
+  };
+
+  nativeBuildInputs = [ cmake pkg-config  ];
+  buildInputs = [ fcitx-qt5 qtbase qtwebengine.dev fcitx gettext libpinyin glib pcre dbus ];
+
+  # With a typical installation via NixOS option i18n.inputMethod.fcitx.engines,
+  # the FCITXDIR environment variable is set to $out of fcitx-with-plugins,
+  # which leads to an incorrect path for pinyin data.
+  #
+  # It is impossible or difficult to fix this issue without patching. We want
+  # FCITXDIR to point into libpinyin, which is currently not symlinked within
+  # fcitx-with-plugins (only fcitx-libpinyin is symlinked). Also, FCITXDIR
+  # doesn't accept multiple directories.
+  patches = [ ./datapath.patch ];
+
+  preInstall = ''
+    substituteInPlace src/cmake_install.cmake \
+      --replace ${fcitx} $out
+    substituteInPlace data/cmake_install.cmake \
+      --replace ${fcitx} $out
+    substituteInPlace dictmanager/cmake_install.cmake \
+      --replace ${fcitx} $out
+  '';
+
+  preBuild = let
+    ZHUYIN_DATA_FILE_NAME = "model.text.20161206.tar.gz";
+    store_path = fetchurl {
+      url = "https://download.fcitx-im.org/data/${ZHUYIN_DATA_FILE_NAME}";
+      sha256 = "017p11si1b7bkwx36xaybq5a9icq1pd7x1jbymqw92akfgjj8w2w";
+    };
+  in
+    ''
+      cp -rv ${store_path} $NIX_BUILD_TOP/$name/data/${ZHUYIN_DATA_FILE_NAME}
+    '';
+
+  dontWrapQtApps = true;
+
+  meta = with lib; {
+    isFcitxEngine = true;
+    description  = "Fcitx Wrapper for libpinyin, Library to deal with pinyin";
+    homepage     = "https://github.com/fcitx/fcitx-libpinyin";
+    license      = licenses.gpl3Plus;
+    maintainers = with maintainers; [ ericsagnes ];
+    platforms    = platforms.linux;
+  };
+}