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/libraries/audio/lv2/default.nix

@@ -0,0 +1,52 @@
+{ stdenv
+, lib
+, fetchurl
+, libsndfile
+, pkg-config
+, python3
+, wafHook
+, pipewire
+}:
+
+stdenv.mkDerivation rec {
+  pname = "lv2";
+  version = "1.18.2";
+
+  outputs = [ "out" "dev" ];
+
+  src = fetchurl {
+    url = "https://lv2plug.in/spec/${pname}-${version}.tar.bz2";
+    sha256 = "sha256-TokfvHRMBYVb6136gugisUkX3Wbpj4K4Iw29HHqy4F4=";
+  };
+
+  nativeBuildInputs = [
+    pkg-config
+    wafHook
+    python3
+  ];
+
+  buildInputs = [
+    libsndfile
+    python3
+  ];
+
+  wafConfigureFlags = [
+    "--includedir=${placeholder "dev"}/include"
+    "--bindir=${placeholder "dev"}/bin"
+  ] ++ lib.optionals stdenv.isDarwin [
+    "--lv2dir=${placeholder "out"}/lib/lv2"
+  ];
+  dontAddWafCrossFlags = true;
+
+  passthru.tests = {
+    inherit pipewire;
+  };
+
+  meta = with lib; {
+    homepage = "https://lv2plug.in";
+    description = "A plugin standard for audio systems";
+    license = licenses.mit;
+    maintainers = with maintainers; [ goibhniu ];
+    platforms = platforms.unix;
+  };
+}