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/riko4/default.nix

@@ -0,0 +1,65 @@
+{ lib, stdenv, fetchFromGitHub, cmake, SDL2, libGLU, luajit, curl, curlpp }:
+
+let
+  # Newer versions of sdl-gpu don't work with Riko4 (corrupted graphics),
+  # and this library does not have a proper release version, so let the
+  # derivation for this stay next to the Riko4 derivation for now.
+  sdl-gpu = stdenv.mkDerivation {
+    pname = "sdl-gpu";
+    version = "2018-11-01";
+    src = fetchFromGitHub {
+      owner = "grimfang4";
+      repo = "sdl-gpu";
+      rev = "a4ff1ab02410f154b004c29ec46e07b22890fa1f";
+      sha256 = "1wdwg331s7r4dhq1l8w4dvlqf4iywskpdrscgbwrz9j0c6nqqi3v";
+    };
+    buildInputs = [ SDL2 libGLU ];
+    nativeBuildInputs = [ cmake ];
+
+    meta = with lib; {
+      homepage = "https://github.com/grimfang4/sdl-gpu";
+      description = "A library for high-performance, modern 2D graphics with SDL written in C";
+      license = licenses.mit;
+      maintainers = with maintainers; [ CrazedProgrammer ];
+    };
+  };
+in
+
+stdenv.mkDerivation rec {
+  pname = "riko4";
+  version = "0.1.0";
+  src = fetchFromGitHub {
+    owner = "incinirate";
+    repo = "Riko4";
+    rev = "v${version}";
+    sha256 = "008i9991sn616dji96jfwq6gszrspbx4x7cynxb1cjw66phyy5zp";
+  };
+
+  buildInputs = [ SDL2 luajit sdl-gpu curl curlpp ];
+  nativeBuildInputs = [ cmake ];
+
+  hardeningDisable = [ "fortify" ];
+  cmakeFlags = [ "-DSDL2_gpu_INCLUDE_DIR=\"${sdl-gpu}/include\"" ];
+
+  # Riko4 needs the data/ and scripts/ directories to be in its PWD.
+  installPhase = ''
+    install -Dm0755 riko4 $out/bin/.riko4-unwrapped
+    mkdir -p $out/lib/riko4
+    cp -r ../data $out/lib/riko4
+    cp -r ../scripts $out/lib/riko4
+    cat > $out/bin/riko4 <<EOF
+    #!/bin/sh
+    pushd $out/lib/riko4 > /dev/null
+    exec $out/bin/.riko4-unwrapped "\$@"
+    popd > /dev/null
+    EOF
+    chmod +x $out/bin/riko4
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/incinirate/Riko4";
+    description = "Fantasy console for pixel art game development";
+    license = licenses.mit;
+    maintainers = with maintainers; [ CrazedProgrammer ];
+  };
+}