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/pulsectl/default.nix

@@ -0,0 +1,38 @@
+{ lib, buildPythonPackage, fetchPypi, libpulseaudio, glibc, substituteAll, stdenv, pulseaudio, python }:
+
+buildPythonPackage rec {
+  pname = "pulsectl";
+  version = "22.3.2";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-zBdOHO69TmIixbePT0FfEugHU8mrdas1QVm0y1lQsIQ=";
+  };
+
+  patches = [
+    # substitute library paths for libpulse and librt
+    (substituteAll {
+      src = ./library-paths.patch;
+      libpulse = "${libpulseaudio.out}/lib/libpulse${stdenv.hostPlatform.extensions.sharedLibrary}";
+      librt = "${glibc.out}/lib/librt${stdenv.hostPlatform.extensions.sharedLibrary}";
+    })
+  ];
+
+  pythonImportsCheck = [
+    "pulsectl"
+  ];
+
+  checkInputs = [ pulseaudio ];
+
+  checkPhase = ''
+    export HOME=$TMPDIR
+    ${python.interpreter} -m unittest discover
+  '';
+
+  meta = with lib; {
+    description = "Python high-level interface and ctypes-based bindings for PulseAudio (libpulse)";
+    homepage = "https://pypi.python.org/pypi/pulsectl/";
+    license = licenses.mit;
+    maintainers = with maintainers; [ hexa ];
+  };
+}