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/accupy/default.nix

@@ -0,0 +1,75 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, pythonOlder
+, mpmath
+, numpy
+, pybind11
+, pyfma
+, eigen
+, importlib-metadata
+, pytestCheckHook
+, matplotlib
+, dufte
+, perfplot
+}:
+
+buildPythonPackage rec {
+  pname = "accupy";
+  version = "0.3.6";
+  disabled = pythonOlder "3.7";
+
+  src = fetchFromGitHub {
+    owner = "nschloe";
+    repo = pname;
+    rev = version;
+    sha256 = "0sxkwpp2xy2jgakhdxr4nh1cspqv8l89kz6s832h05pbpyc0n767";
+  };
+
+  nativeBuildInputs = [
+    pybind11
+  ];
+
+  buildInputs = [
+    eigen
+  ];
+
+  propagatedBuildInputs = [
+    mpmath
+    numpy
+    pyfma
+  ] ++ lib.optional (pythonOlder "3.8") importlib-metadata;
+
+  checkInputs = [
+    perfplot
+    pytestCheckHook
+    matplotlib
+    dufte
+  ];
+
+  postConfigure = ''
+   substituteInPlace setup.py \
+     --replace "/usr/include/eigen3/" "${eigen}/include/eigen3/"
+  '';
+
+  preBuild = ''
+    export HOME=$(mktemp -d)
+  '';
+
+  # performance tests aren't useful to us and disabling them allows us to
+  # decouple ourselves from an unnecessary build dep
+  preCheck = ''
+    for f in test/test*.py ; do
+      substituteInPlace $f --replace 'import perfplot' ""
+    done
+  '';
+  disabledTests = [ "test_speed_comparison1" "test_speed_comparison2" ];
+  pythonImportsCheck = [ "accupy" ];
+
+  meta = with lib; {
+    description = "Accurate sums and dot products for Python";
+    homepage = "https://github.com/nschloe/accupy";
+    license = licenses.mit;
+    maintainers = [ maintainers.costrouc ];
+  };
+}