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/os-specific/linux/roccat-tools/default.nix

@@ -0,0 +1,49 @@
+{ lib, stdenv, fetchurl, cmake, pkg-config, gettext
+, dbus, dbus-glib, libgaminggear, libgudev, lua
+, harfbuzz
+}:
+
+stdenv.mkDerivation rec {
+  pname = "roccat-tools";
+  version = "5.9.0";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/roccat/${pname}-${version}.tar.bz2";
+    sha256 = "12j02rzbz3iqxprz8cj4kcfcdgnqlva142ci177axqmckcq6crvg";
+  };
+
+  postPatch = ''
+    sed -i -re 's,/(etc/xdg),\1,' roccateventhandler/CMakeLists.txt
+
+    sed -i -e '/roccat_profile_dir(void).*{/,/}/ {
+      /return/c \
+        return g_build_path("/", g_get_user_data_dir(), "roccat", NULL);
+    }' libroccat/roccat_helper.c
+  '';
+
+  nativeBuildInputs = [ cmake pkg-config gettext ];
+  buildInputs = [ dbus dbus-glib libgaminggear libgudev lua ];
+
+  cmakeFlags = [
+    "-DUDEVDIR=\${out}/lib/udev/rules.d"
+    "-DCMAKE_MODULE_PATH=${libgaminggear.dev}/lib/cmake"
+    "-DWITH_LUA=${lua.luaversion}"
+    "-DLIBDIR=lib"
+  ];
+
+  NIX_CFLAGS_COMPILE = [
+    "-I${harfbuzz.dev}/include/harfbuzz"
+
+    # Workaround build failure on -fno-common toolchains:
+    #   ld: ryos_talk.c.o:(.bss+0x0): multiple definition of `RyosWriteCheckWait';
+    #     ryos_custom_lights.c.o:(.bss+0x0): first defined here
+    "-fcommon"
+  ];
+
+  meta = {
+    description = "Tools to configure ROCCAT devices";
+    homepage = "http://roccat.sourceforge.net/";
+    platforms = lib.platforms.linux;
+    license = lib.licenses.gpl2Plus;
+  };
+}