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/pypandoc/default.nix

@@ -0,0 +1,33 @@
+{ lib, substituteAll, buildPythonPackage, fetchPypi
+, pandoc, texlive
+}:
+
+buildPythonPackage rec {
+  pname = "pypandoc";
+  version = "1.7.5";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-gCwmquF7ZBNsbQBpSdjOGDp9TZ+9Ty0FHmb0+59FylA=";
+  };
+
+  patches = [
+    (substituteAll {
+      src = ./static-pandoc-path.patch;
+      pandoc = "${lib.getBin pandoc}/bin/pandoc";
+      pandocVersion = pandoc.version;
+    })
+    ./skip-tests.patch
+  ];
+
+  checkInputs = [
+    texlive.combined.scheme-small
+  ];
+
+  meta = with lib; {
+    description = "Thin wrapper for pandoc";
+    homepage = "https://github.com/NicklasTegner/pypandoc";
+    license = licenses.mit;
+    maintainers = with maintainers; [ sternenseemann bennofs ];
+  };
+}