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/development/python-modules/skytemple-files/default.nix

@@ -0,0 +1,36 @@
+{ stdenv, lib, buildPythonPackage, fetchFromGitHub, appdirs, dungeon-eos, explorerscript
+, ndspy, pillow, setuptools, skytemple-rust, tilequant, armips
+}:
+
+buildPythonPackage rec {
+  pname = "skytemple-files";
+  version = "1.3.9";
+
+  src = fetchFromGitHub {
+    owner = "SkyTemple";
+    repo = pname;
+    rev = version;
+    sha256 = "sha256-Z/jbr9o0WKPjkAsfZzxuwAKKdwYV3rLGkUMlMgyC5s0=";
+    fetchSubmodules = true;
+  };
+
+  postPatch = ''
+    substituteInPlace skytemple_files/patch/arm_patcher.py \
+      --replace "exec_name = os.getenv('SKYTEMPLE_ARMIPS_EXEC', f'{prefix}armips')" "exec_name = \"${armips}/bin/armips\""
+  '';
+
+  buildInputs = [ armips ];
+
+  propagatedBuildInputs = [ appdirs dungeon-eos explorerscript ndspy pillow setuptools skytemple-rust tilequant ];
+
+  doCheck = false; # requires Pokémon Mystery Dungeon ROM
+  pythonImportsCheck = [ "skytemple_files" ];
+
+  meta = with lib; {
+    homepage = "https://github.com/SkyTemple/skytemple-files";
+    description = "Python library to edit the ROM of Pokémon Mystery Dungeon Explorers of Sky";
+    license = licenses.gpl3Plus;
+    maintainers = with maintainers; [ xfix marius851000 ];
+    broken = stdenv.isDarwin; # pyobjc is missing
+  };
+}