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/applications/audio/pd-plugins/helmholtz/default.nix

@@ -0,0 +1,48 @@
+{ lib, stdenv, fetchurl, unzip, puredata }:
+
+stdenv.mkDerivation {
+  name = "helmholtz";
+
+  src = fetchurl {
+    url = "https://www.katjaas.nl/helmholtz/helmholtz~.zip";
+    name = "helmholtz.zip";
+    curlOpts = "--user-agent ''";
+    sha256 = "0h1fj7lmvq9j6rmw33rb8k0byxb898bi2xhcwkqalb84avhywgvs";
+  };
+
+  nativeBuildInputs = [ unzip ];
+  buildInputs = [ puredata ];
+
+  unpackPhase = ''
+    unzip $src
+    mv helmholtz~/src/helmholtz\~.cpp .
+    mv helmholtz~/src/Helmholtz.cpp .
+    mv helmholtz~/src/include/ .
+    mv helmholtz~/src/Makefile .
+    rm -rf helmholtz~/src/
+    rm helmholtz~/helmholtz~.pd_darwin
+    rm helmholtz~/helmholtz~.pd_linux
+    rm helmholtz~/helmholtz~.dll
+    rm -rf __MACOSX
+  '';
+
+  patchPhase = ''
+    mkdir -p $out/helmholtz~
+    sed -i "s@current: pd_darwin@current: pd_linux@g" Makefile
+    sed -i "s@-Wl@@g" Makefile
+    sed -i "s@\$(NAME).pd_linux \.\./\$(NAME).pd_linux@helmholtz~.pd_linux $out/helmholtz~/@g" Makefile
+  '';
+
+  installPhase = ''
+    cp -r helmholtz~/ $out/
+  '';
+
+  meta = {
+    broken = (stdenv.isLinux && stdenv.isAarch64);
+    description = "Time domain pitch tracker for Pure Data";
+    homepage = "http://www.katjaas.nl/helmholtz/helmholtz.html";
+    license = lib.licenses.bsd3;
+    maintainers = [ lib.maintainers.magnetophon ];
+    platforms = lib.platforms.linux;
+  };
+}