spaceFM: fix gcc-14 build

WIthout the change the build on` master` fails as: https://hydra.nixos.org/build/282732531

    exo/exo-icon-view.c: In function 'exo_icon_view_key_press_event':
    exo/exo-icon-view.c:2686:27: error: assignment to 'GdkWindow *' {aka 'struct _GdkWindow *'} from incompatible pointer type 'GObject *' {aka 'struct _GObject *'} [-Wincompatible-pointer-types-Wincompatible-pointer-types]
     2686 |     new_event->key.window = g_object_ref (G_OBJECT (gtk_widget_get_window (GTK_WIDGET(icon_view->priv->search_entry))));
          |                           ^

pkgs/by-name/sp/spaceFM/package.nix

@@ -1,6 +1,7 @@
 {
   pkgs,
   fetchFromGitHub,
+  fetchpatch,
   lib,
   stdenv,
   gtk3,
@@ -35,6 +36,14 @@ stdenv.mkDerivation rec {
 
     # restrict GDK backends to only X11
     ./x11-only.patch
+
+    # gcc-14 build fix from:
+    #   https://github.com/IgnorantGuru/spacefm/pull/816
+    (fetchpatch {
+      name = "gcc-14.patch";
+      url = "https://github.com/IgnorantGuru/spacefm/commit/98efb1f43e6339b3ceddb9f65ee85e26790fefdf.patch";
+      hash = "sha256-dau1AMnSBsp8iDrjoo0WTnFQ13vNZW2kM4qz0B/beDI=";
+    })
   ];
 
   # Workaround build failure on -fno-common toolchains: