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/libraries/rarian/default.nix

@@ -0,0 +1,25 @@
+{lib, stdenv, fetchurl, pkg-config, perlPackages, libxml2, libxslt, docbook_xml_dtd_42, gnome}:
+let
+  pname = "rarian";
+  version = "0.8.1";
+in stdenv.mkDerivation rec {
+  name = "${pname}-${version}";
+
+  src = fetchurl {
+    url = "mirror://gnome/sources/${pname}/${lib.versions.majorMinor version}/${name}.tar.gz";
+    sha256 = "aafe886d46e467eb3414e91fa9e42955bd4b618c3e19c42c773026b205a84577";
+  };
+
+  nativeBuildInputs = [ pkg-config ];
+  buildInputs = [ libxml2 libxslt ]
+    ++ (with perlPackages; [ perl XMLParser ]);
+  configureFlags = [ "--with-xml-catalog=${docbook_xml_dtd_42}/xml/dtd/docbook/docbook.cat" ];
+
+  meta = with lib; {
+    description = "Documentation metadata library based on the proposed Freedesktop.org spec";
+    homepage = "https://rarian.freedesktop.org/";
+    license = licenses.lgpl21Plus;
+    maintainers = teams.gnome.members;
+    platforms = platforms.linux;
+  };
+}