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/left4gore/default.nix

@@ -0,0 +1,48 @@
+{ stdenvNoCC, lib, fetchurl, buildFHSUserEnv }:
+
+let
+  version = "2.3";
+
+  # Unwrapped package, for putting into the FHS env
+  left4gore-unwrapped = stdenvNoCC.mkDerivation {
+    pname = "left4gore-unwrapped";
+    inherit version;
+
+    src = fetchurl {
+      url = "http://www.left4gore.com/dist/left4gore-${version}-linux.tar.gz";
+      sha256 = "1n57nh32ybn6kirn8djh0nsjx6m84c0jfi1x8r4w2qr0qky3z7p0";
+    };
+
+    installPhase = ''
+      mkdir -p $out/bin
+      cp left4gore $out/bin
+    '';
+  };
+
+  # FHS env, as patchelf will not work
+  env = buildFHSUserEnv {
+    name = "left4gore-env-${version}";
+    targetPkgs = _: [ left4gore-unwrapped ];
+    runScript = "left4gore";
+  };
+
+in stdenvNoCC.mkDerivation {
+  pname = "left4gore";
+  inherit version;
+
+  dontUnpack = true;
+  dontConfigure = true;
+  dontBuild = true;
+
+  installPhase = ''
+    mkdir -p $out/bin
+    ln -s ${env}/bin/* $out/bin/left4gore
+  '';
+
+  meta = with lib; {
+    homepage = "http://www.left4gore.com";
+    description = "Memory patcher which adds the gore back into Left 4 Dead 2";
+    license = licenses.unfree; # Probably the best choice
+    maintainers = with maintainers; [ das_j ];
+  };
+}