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/games/klavaro/default.nix

@@ -0,0 +1,53 @@
+{ lib, stdenv
+, fetchurl
+, makeWrapper
+, curl
+, espeak
+, file
+, gtk3
+, gtkdatabox
+, intltool
+, pkg-config
+}:
+
+stdenv.mkDerivation rec {
+  pname = "klavaro";
+  version = "3.13";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/klavaro/${pname}-${version}.tar.bz2";
+    sha256 = "0z6c3lqikk50mkz3ipm93l48qj7b98lxyip8y6ndg9y9k0z0n878";
+  };
+
+  nativeBuildInputs = [ intltool makeWrapper pkg-config ];
+  buildInputs = [ curl gtk3 gtkdatabox ];
+
+  postPatch = ''
+    substituteInPlace src/tutor.c --replace '"espeak ' '"${espeak}/bin/espeak '
+  '';
+
+  patches = [ ./icons.patch ./trans_lang_get_similar.patch ];
+
+  postInstall = ''
+    wrapProgram $out/bin/klavaro \
+      --prefix LD_LIBRARY_PATH : $out/lib
+  '';
+
+  # Fixes /usr/bin/file: No such file or directory
+  preConfigure = ''
+    substituteInPlace configure \
+      --replace "/usr/bin/file" "${file}/bin/file"
+  '';
+
+  # Hack to avoid TMPDIR in RPATHs.
+  preFixup = ''rm -rf "$(pwd)" '';
+
+  meta = with lib; {
+    description = "Free touch typing tutor program";
+    homepage = "http://klavaro.sourceforge.net/";
+    changelog = "https://sourceforge.net/p/klavaro/code/HEAD/tree/trunk/ChangeLog";
+    license = licenses.gpl3Plus;
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ mimame davidak ];
+  };
+}