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/desktops/mate/mate-user-guide/default.nix

@@ -0,0 +1,32 @@
+{ lib, stdenv, fetchurl, gettext, itstool, libxml2, yelp, mateUpdateScript }:
+
+stdenv.mkDerivation rec {
+  pname = "mate-user-guide";
+  version = "1.26.0";
+
+  src = fetchurl {
+    url = "https://pub.mate-desktop.org/releases/${lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
+    sha256 = "1h620ngryqc4m8ybvc92ba8404djnm0l65f34mlw38g9ad8d9085";
+  };
+
+  nativeBuildInputs = [ itstool gettext libxml2 ];
+
+  buildInputs = [ yelp ];
+
+  postPatch = ''
+    substituteInPlace mate-user-guide.desktop.in.in \
+      --replace "Exec=yelp" "Exec=${yelp}/bin/yelp"
+  '';
+
+  enableParallelBuilding = true;
+
+  passthru.updateScript = mateUpdateScript { inherit pname version; };
+
+  meta = with lib; {
+    description = "MATE User Guide";
+    homepage = "https://mate-desktop.org";
+    license = with licenses; [ gpl2Plus fdl12 ];
+    platforms = platforms.unix;
+    maintainers = teams.mate.members;
+  };
+}