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/subunit/default.nix

@@ -0,0 +1,38 @@
+{ buildPythonPackage
+# pkgs dependencies
+, check
+, cppunit
+, pkg-config
+, subunit
+, pythonOlder
+
+# python dependencies
+, fixtures
+, hypothesis
+, pytest
+, testscenarios
+, testtools
+, unittest2
+}:
+
+buildPythonPackage {
+  inherit (subunit) name src meta;
+
+  nativeBuildInputs = [ pkg-config ];
+  buildInputs = [ check cppunit ];
+  propagatedBuildInputs = [ testtools ];
+
+  checkInputs = [ testscenarios hypothesis fixtures pytest unittest2 ];
+
+  # requires unittest2, which no longer supported in 3.10
+  doCheck = pythonOlder "3.10";
+  # ignore tests which call shell code, or call methods which haven't been implemented
+  checkPhase = ''
+    pytest python/subunit \
+      --ignore=python/subunit/tests/test_{output_filter,test_protocol{,2}}.py
+  '';
+
+  postPatch = ''
+    sed -i 's/version=VERSION/version="${subunit.version}"/' setup.py
+  '';
+}