qt515.qt3d: fix build on aarch64-darwin

pkgs/development/libraries/qt-5/modules/qt3d.nix

@@ -1,7 +1,9 @@
-{ qtModule, qtbase, qtdeclarative }:
+{ lib, stdenv, qtModule, qtbase, qtdeclarative }:
 
 qtModule {
   pname = "qt3d";
   qtInputs = [ qtbase qtdeclarative ];
   outputs = [ "out" "dev" "bin" ];
+  # error: use of undeclared identifier 'stat64'
+  NIX_CFLAGS_COMPILE = lib.optionalString (stdenv.isDarwin && stdenv.isAarch64) "-Dstat64=stat";
 }