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/gsignond/default.nix

@@ -0,0 +1,67 @@
+{ lib, stdenv, fetchFromGitLab, pkg-config, meson, ninja, glib, glib-networking
+, sqlite, gobject-introspection, vala, gtk-doc, libsecret, docbook_xsl
+, docbook_xml_dtd_43, docbook_xml_dtd_45, glibcLocales, makeWrapper
+, symlinkJoin, gsignondPlugins, plugins }:
+
+let
+unwrapped = stdenv.mkDerivation rec {
+  pname = "gsignond";
+  version = "1.2.0";
+
+  outputs = [ "out" "dev" "devdoc" ];
+
+  src = fetchFromGitLab {
+    owner = "accounts-sso";
+    repo = pname;
+    rev = version;
+    sha256 = "17cpil3lpijgyj2z5c41vhb7fpk17038k5ggyw9p6049jrlf423m";
+  };
+
+  nativeBuildInputs = [
+    docbook_xml_dtd_43
+    docbook_xml_dtd_45
+    docbook_xsl
+    glibcLocales
+    gobject-introspection
+    gtk-doc
+    meson
+    ninja
+    pkg-config
+    vala
+  ];
+
+  buildInputs = [
+    glib
+    glib-networking
+    libsecret
+  ];
+
+  propagatedBuildInputs = [ sqlite ];
+
+  mesonFlags = [
+    "-Dbus_type=session"
+    "-Dextension=desktop"
+  ];
+
+  LC_ALL = "en_US.UTF-8";
+
+  patches = [
+    ./conf.patch
+    ./plugin-load-env.patch
+  ];
+
+  meta = with lib; {
+    description = "D-Bus service which performs user authentication on behalf of its clients";
+    homepage = "https://gitlab.com/accounts-sso/gsignond";
+    license = licenses.lgpl21Plus;
+    maintainers = with maintainers; [ ];
+    platforms = platforms.linux;
+  };
+};
+
+in if plugins == [] then unwrapped
+    else import ./wrapper.nix {
+      inherit makeWrapper symlinkJoin plugins;
+      gsignond = unwrapped;
+    }
+