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/guile-modules/guile-commonmark/default.nix

@@ -0,0 +1,42 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, autoreconfHook
+, guile
+, pkg-config
+}:
+
+stdenv.mkDerivation rec {
+  pname = "guile-commonmark";
+  version = "0.1.2";
+
+  src = fetchFromGitHub {
+    owner = "OrangeShark";
+    repo = pname;
+    rev = "v${version}";
+    hash = "sha256-qYDcIiObKOU8lmcfk327LMPx/2Px9ecI3QLrSWWLxMo=";
+  };
+
+  nativeBuildInputs = [
+    autoreconfHook
+    pkg-config
+  ];
+  buildInputs = [
+    guile
+  ];
+
+  # https://github.com/OrangeShark/guile-commonmark/issues/20
+  doCheck = false;
+
+  makeFlags = [
+    "GUILE_AUTO_COMPILE=0"
+  ];
+
+  meta = with lib; {
+    homepage = "https://github.com/OrangeShark/guile-commonmark";
+    description = "Implementation of CommonMark for Guile";
+    license = licenses.lgpl3Plus;
+    maintainers = with maintainers; [ AndersonTorres ];
+    platforms = guile.meta.platforms;
+  };
+}