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/iortcw/sp.nix

@@ -0,0 +1,52 @@
+{ lib, stdenv, fetchFromGitHub, opusfile, libogg, SDL2, openal, freetype
+, libjpeg, curl, makeWrapper }:
+
+stdenv.mkDerivation rec {
+  pname = "iortcw-sp";
+  version = "1.51c";
+
+  src = fetchFromGitHub {
+    owner = "iortcw";
+    repo = "iortcw";
+    rev = version;
+    sha256 = "0g5wgqb1gm34pd05dj2i8nj3qhsz0831p3m7bsgxpjcg9c00jpyw";
+  };
+
+  enableParallelBuilding = true;
+
+  sourceRoot = "source/SP";
+
+  makeFlags = [
+    "USE_INTERNAL_LIBS=0"
+    "COPYDIR=${placeholder "out"}/opt/iortcw"
+    "USE_OPENAL_DLOPEN=0"
+    "USE_CURL_DLOPEN=0"
+  ];
+
+  installTargets = [ "copyfiles" ];
+
+  buildInputs = [
+    opusfile libogg SDL2 freetype libjpeg openal curl
+  ];
+  nativeBuildInputs = [ makeWrapper ];
+
+  NIX_CFLAGS_COMPILE = [
+    "-I${SDL2.dev}/include/SDL2"
+    "-I${opusfile}/include/opus"
+  ];
+  NIX_CFLAGS_LINK = [ "-lSDL2" ];
+
+  postInstall = ''
+    for i in `find $out/opt/iortcw -maxdepth 1 -type f -executable`; do
+      makeWrapper $i $out/bin/`basename $i` --chdir "$out/opt/iortcw"
+    done
+  '';
+
+  meta = with lib; {
+    description = "Single player version of game engine for Return to Castle Wolfenstein";
+    homepage = src.meta.homepage;
+    license = licenses.gpl3;
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ ];
+  };
+}