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/ibus-engines/ibus-hangul/default.nix

@@ -0,0 +1,55 @@
+{ lib, stdenv
+, fetchurl
+, substituteAll
+, appstream-glib
+, gettext
+, pkg-config
+, wrapGAppsHook
+, gtk3
+, ibus
+, libhangul
+, python3
+}:
+
+stdenv.mkDerivation rec {
+  pname = "ibus-hangul";
+  version = "1.5.4";
+
+  src = fetchurl {
+    url = "https://github.com/choehwanjin/ibus-hangul/releases/download/${version}/${pname}-${version}.tar.gz";
+    sha256 = "1q6g2pnrn5gqn9jqnm3975v9hh60hc5gn9x3zbrdjgy0n3wpxwm9";
+  };
+
+  patches = [
+    (substituteAll {
+      src = ./fix-paths.patch;
+      libhangul = "${libhangul}/lib/libhangul.so.1";
+    })
+  ];
+
+  nativeBuildInputs = [
+    appstream-glib
+    gettext
+    pkg-config
+    wrapGAppsHook
+  ];
+
+  buildInputs = [
+    gtk3
+    ibus
+    libhangul
+    (python3.withPackages (pypkgs: with pypkgs; [
+      pygobject3
+      (toPythonModule ibus)
+    ]))
+  ];
+
+  meta = with lib; {
+    isIbusEngine = true;
+    description = "Ibus Hangul engine";
+    homepage = "https://github.com/choehwanjin/ibus-hangul";
+    license = licenses.gpl2;
+    maintainers = with maintainers; [ ericsagnes ];
+    platforms = platforms.linux;
+  };
+}

pkgs/tools/inputmethods/ibus-engines/ibus-hangul/fix-paths.patch

@@ -0,0 +1,13 @@
+diff --git a/setup/main.py b/setup/main.py
+index 8d581cd..2ac47b9 100644
+--- a/setup/main.py
++++ b/setup/main.py
+@@ -37,7 +37,7 @@
+ 
+ def get_hangul_keyboard_list():
+     from ctypes import CDLL, c_int, c_char_p
+-    libhangul = CDLL('libhangul.so.1')
++    libhangul = CDLL('@libhangul@')
+     libhangul.hangul_ic_get_n_keyboards.argtypes = []
+     libhangul.hangul_ic_get_n_keyboards.restype = c_int
+     libhangul.hangul_ic_get_keyboard_id.argtypes = [c_int]