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/cvxpy/default.nix

@@ -0,0 +1,66 @@
+{ lib
+, stdenv
+, pythonOlder
+, buildPythonPackage
+, fetchPypi
+, cvxopt
+, ecos
+, numpy
+, osqp
+, scipy
+, scs
+, useOpenmp ? (!stdenv.isDarwin)
+  # Check inputs
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "cvxpy";
+  version = "1.2.1";
+  format = "pyproject";
+
+  disabled = pythonOlder "3.5";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-bWdkJkPR3bLyr1m0Zrh9QsSi42eDGte0PDO1nu+ltQ4=";
+  };
+
+  propagatedBuildInputs = [
+    cvxopt
+    ecos
+    numpy
+    osqp
+    scipy
+    scs
+  ];
+
+  # Required flags from https://github.com/cvxgrp/cvxpy/releases/tag/v1.1.11
+  preBuild = lib.optionalString useOpenmp ''
+    export CFLAGS="-fopenmp"
+    export LDFLAGS="-lgomp"
+  '';
+
+  checkInputs = [ pytestCheckHook ];
+
+  pytestFlagsArray = [ "./cvxpy" ];
+
+   # Disable the slowest benchmarking tests, cuts test time in half
+  disabledTests = [
+    "test_tv_inpainting"
+    "test_diffcp_sdp_example"
+  ] ++ lib.optionals stdenv.isAarch64 [
+    "test_ecos_bb_mi_lp_2" # https://github.com/cvxgrp/cvxpy/issues/1241#issuecomment-780912155
+  ];
+
+  pythonImportsCheck = [ "cvxpy" ];
+
+  meta = with lib; {
+    description = "A domain-specific language for modeling convex optimization problems in Python";
+    homepage = "https://www.cvxpy.org/";
+    downloadPage = "https://github.com/cvxgrp/cvxpy/releases";
+    changelog = "https://github.com/cvxgrp/cvxpy/releases/tag/v${version}";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ drewrisinger ];
+  };
+}