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/symengine/default.nix

@@ -0,0 +1,62 @@
+{ lib
+, buildPythonPackage
+, fetchpatch
+, fetchFromGitHub
+, cython
+, cmake
+, symengine
+, pytest
+, sympy
+, python
+}:
+
+buildPythonPackage rec {
+  pname = "symengine";
+  version = "0.9.2";
+  format = "setuptools";
+
+  src = fetchFromGitHub {
+    owner = "symengine";
+    repo = "symengine.py";
+    rev = "v${version}";
+    sha256 = "sha256-ZHplYEG97foy/unOdSokFFkDl4LK5TI4kypHSLpcCM4=";
+  };
+
+  patches = [
+    (fetchpatch {
+      # setuptools 61 compat
+      url = "https://github.com/symengine/symengine.py/commit/987e665e71cf92d1b021d7d573a1b9733408eecf.patch";
+      hash = "sha256-2QbNdw/lKYRIRpOU5BiwF2kK+5Lh2j/Q82MKUIvl0+c=";
+    })
+  ];
+
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace "\"cmake\"" "\"${cmake}/bin/cmake\"" \
+      --replace "'cython>=0.29.24'" "'cython'"
+  '';
+
+  nativeBuildUnputs = [ cmake ];
+
+  buildInputs = [ cython ];
+
+  checkInputs = [ pytest sympy ];
+
+  setupPyBuildFlags = [
+    "--symengine-dir=${symengine}/"
+    "--define=\"CYTHON_BIN=${cython}/bin/cython\""
+  ];
+
+  checkPhase = ''
+    mkdir empty
+    cd empty
+    ${python.interpreter} ../bin/test_python.py
+  '';
+
+  meta = with lib; {
+    description = "Python library providing wrappers to SymEngine";
+    homepage = "https://github.com/symengine/symengine.py";
+    license = licenses.mit;
+    maintainers = [ maintainers.costrouc ];
+  };
+}