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/pyacoustid/default.nix

@@ -0,0 +1,37 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, requests
+, audioread
+, pkgs
+}:
+
+buildPythonPackage rec {
+  pname = "pyacoustid";
+  version = "1.2.2";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "c279d9c30a7f481f1420fc37db65833b5f9816cd364dc2acaa93a11c482d4141";
+  };
+
+  propagatedBuildInputs = [ requests audioread ];
+
+  postPatch = ''
+    sed -i \
+        -e '/^FPCALC_COMMAND *=/s|=.*|= "${pkgs.chromaprint}/bin/fpcalc"|' \
+        acoustid.py
+  '';
+
+  # package has no tests
+  doCheck = false;
+
+  pythonImportsCheck = [ "acoustid" ];
+
+  meta = with lib; {
+    description = "Bindings for Chromaprint acoustic fingerprinting";
+    homepage = "https://github.com/sampsyo/pyacoustid";
+    license = licenses.mit;
+    maintainers = with maintainers; [ ];
+  };
+}