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>

nixos/modules/i18n/input-method/fcitx5.nix

@@ -0,0 +1,47 @@
+{ config, pkgs, lib, ... }:
+
+with lib;
+
+let
+  im = config.i18n.inputMethod;
+  cfg = im.fcitx5;
+  addons = cfg.addons ++ optional cfg.enableRimeData pkgs.rime-data;
+  fcitx5Package = pkgs.fcitx5-with-addons.override { inherit addons; };
+  whetherRimeDataDir = any (p: p.pname == "fcitx5-rime") cfg.addons;
+in {
+  options = {
+    i18n.inputMethod.fcitx5 = {
+      addons = mkOption {
+        type = with types; listOf package;
+        default = [];
+        example = literalExpression "with pkgs; [ fcitx5-rime ]";
+        description = ''
+          Enabled Fcitx5 addons.
+        '';
+      };
+
+      enableRimeData = mkEnableOption "default rime-data with fcitx5-rime";
+    };
+  };
+
+  config = mkIf (im.enabled == "fcitx5") {
+    i18n.inputMethod.package = fcitx5Package;
+
+    environment = mkMerge [{
+      variables = {
+        GTK_IM_MODULE = "fcitx";
+        QT_IM_MODULE = "fcitx";
+        XMODIFIERS = "@im=fcitx";
+      };
+    }
+    (mkIf whetherRimeDataDir {
+      pathsToLink = [
+        "/share/rime-data"
+      ];
+
+      variables =  {
+        NIX_RIME_DATA_DIR = "/run/current-system/sw/share/rime-data";
+      };
+    })];
+  };
+}