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/python-magic/default.nix

@@ -0,0 +1,43 @@
+{ lib
+, stdenv
+, python
+, buildPythonPackage
+, fetchFromGitHub
+, substituteAll
+, file
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "python-magic";
+  version = "0.4.26";
+
+  src = fetchFromGitHub {
+    owner = "ahupp";
+    repo = "python-magic";
+    rev = version;
+    sha256 = "sha256-RcKldMwSRroNZNEl0jwuJG9C+3OIPBzk+CjqkxKK/eY=";
+  };
+
+  patches = [
+    (substituteAll {
+      src = ./libmagic-path.patch;
+      libmagic = "${file}/lib/libmagic${stdenv.hostPlatform.extensions.sharedLibrary}";
+    })
+  ];
+
+  preCheck = ''
+    export LC_ALL=en_US.UTF-8
+  '';
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  meta = with lib; {
+    description = "A python interface to the libmagic file type identification library";
+    homepage = "https://github.com/ahupp/python-magic";
+    license = licenses.mit;
+    maintainers = with maintainers; [ SuperSandro2000 ];
+  };
+}