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/xapian/default.nix

@@ -0,0 +1,42 @@
+{ lib, buildPythonPackage, fetchurl, python
+, sphinx
+, xapian
+}:
+
+let
+  pythonSuffix = lib.optionalString python.isPy3k "3";
+in
+buildPythonPackage rec {
+  pname = "xapian";
+  inherit (xapian) version;
+  format = "other";
+
+  src = fetchurl {
+    url = "https://oligarchy.co.uk/xapian/${version}/xapian-bindings-${version}.tar.xz";
+    sha256 = "0j9awiiw9zf97r60m848absq43k37gghpyw7acxqjazfzd71fxvm";
+  };
+
+  configureFlags = [
+    "--with-python${pythonSuffix}"
+    "PYTHON${pythonSuffix}_LIB=${placeholder "out"}/${python.sitePackages}"
+  ];
+
+  preConfigure = ''
+    export XAPIAN_CONFIG=${xapian}/bin/xapian-config
+  '';
+
+  buildInputs = [ sphinx xapian ];
+
+  doCheck = true;
+
+  checkPhase = ''
+    ${python.interpreter} python${pythonSuffix}/pythontest.py
+  '';
+
+  meta = with lib; {
+    description = "Python Bindings for Xapian";
+    homepage = "https://xapian.org/";
+    license = licenses.gpl2Plus;
+    maintainers = with maintainers; [ jonringer ];
+  };
+}