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/gnome/core/gnome-backgrounds/default.nix

@@ -0,0 +1,44 @@
+{ stdenv
+, lib
+, fetchurl
+, meson
+, ninja
+, gnome
+}:
+
+stdenv.mkDerivation rec {
+  pname = "gnome-backgrounds";
+  version = "42.0";
+
+  src = fetchurl {
+    url = "mirror://gnome/sources/gnome-backgrounds/${lib.versions.major version}/${pname}-${version}.tar.xz";
+    sha256 = "TH/hoJ9FnF93GJpZglJPzgXYiJRJVdZ5kQ8jRgbBKV0=";
+  };
+
+  patches = [
+    # Makes the database point to stable paths in /run/current-system/sw/share, which don't decay whenever this package's hash changes.
+    # This assumes a nixos + gnome system, where this package is installed in environment.systemPackages,
+    # and /share outputs are included in environment.pathsToLink.
+    ./stable-dir.patch
+  ];
+
+  nativeBuildInputs = [
+    meson
+    ninja
+  ];
+
+  passthru = {
+    updateScript = gnome.updateScript {
+      packageName = "gnome-backgrounds";
+      attrPath = "gnome.gnome-backgrounds";
+    };
+  };
+
+  meta = with lib; {
+    description = "Default wallpaper set for GNOME";
+    homepage = "https://gitlab.gnome.org/GNOME/gnome-backgrounds";
+    license = licenses.cc-by-sa-30;
+    platforms = platforms.unix;
+    maintainers = teams.gnome.members;
+  };
+}

pkgs/desktops/gnome/core/gnome-backgrounds/stable-dir.patch

@@ -0,0 +1,9 @@
+diff --git a/backgrounds/meson.build b/backgrounds/meson.build
+index 2175a16..cf521df 100644
+--- a/backgrounds/meson.build
++++ b/backgrounds/meson.build
+@@ -1,5 +1,5 @@
+ dataconf = configuration_data()
+-dataconf.set('BACKGROUNDDIR', backgrounddir)
++dataconf.set('BACKGROUNDDIR', '/run/current-system/sw/share/backgrounds/gnome')
+ dataconf.set('datadir', datadir)