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/servers/monitoring/prometheus/xmpp-alerts.nix

@@ -0,0 +1,41 @@
+{ lib
+, fetchFromGitHub
+, python3Packages
+, prometheus-alertmanager
+}:
+
+python3Packages.buildPythonApplication rec {
+  pname = "prometheus-xmpp-alerts";
+  version = "0.5.3";
+
+  src = fetchFromGitHub {
+    owner = "jelmer";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-gb7lFRqqw4w/B+Sw0iteDkuGsPfw/ZZ+sRMTu5vxIUo=";
+  };
+
+  propagatedBuildInputs = [
+    prometheus-alertmanager
+  ] ++ (with python3Packages; [
+    aiohttp
+    slixmpp
+    prometheus-client
+    pyyaml
+  ]);
+
+  checkInputs = with python3Packages; [
+    pytz
+  ];
+
+  checkPhase = ''
+    ${python3Packages.python.interpreter} -m unittest discover
+  '';
+
+  meta = {
+    description = "XMPP Web hook for Prometheus";
+    homepage = "https://github.com/jelmer/prometheus-xmpp-alerts";
+    maintainers = with lib.maintainers; [ fpletz ];
+    license = with lib.licenses; [ asl20 ];
+  };
+}