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/exult/default.nix

@@ -0,0 +1,47 @@
+{ lib, stdenv, fetchurl, pkg-config, SDL2, libogg, libvorbis, zlib, unzip }:
+
+let
+
+  # Digital recordings of the music on an original Roland MT-32.  So
+  # we don't need actual MIDI playback capability.
+  audio = fetchurl {
+    url = "mirror://sourceforge/exult/exult_audio.zip";
+    sha256 = "0s5wvgy9qja06v38g0qwzpaw76ff96vzd6gb1i3lb9k4hvx0xqbj";
+  };
+
+in
+
+stdenv.mkDerivation rec {
+  pname = "exult";
+  version = "1.6";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/exult/exult-${version}.tar.gz";
+    sha256 = "1dm27qkxj30567zb70q4acddsizn0xyi3z87hg7lysxdkyv49s3s";
+  };
+
+  configureFlags = [ "--disable-tools" ];
+
+  nativeBuildInputs = [ pkg-config unzip ];
+  buildInputs = [ SDL2 libogg libvorbis zlib ];
+
+  enableParallelBuilding = true;
+
+  NIX_LDFLAGS = "-lX11";
+
+  postInstall =
+    ''
+      mkdir -p $out/share/exult/music
+      unzip -o -d $out/share/exult ${audio}
+      chmod 644 $out/share/exult/*.flx
+    ''; # */
+
+  meta = {
+    homepage = "http://exult.sourceforge.net/";
+    description = "A reimplementation of the Ultima VII game engine";
+    maintainers = [ lib.maintainers.eelco ];
+    platforms = lib.platforms.unix;
+    hydraPlatforms = lib.platforms.linux; # darwin times out
+    license = lib.licenses.gpl2Plus;
+  };
+}