GCC has `__attribute__((scalar_storage_order("big-endian")))`. Note that the attribute is applied on `struct`s (and `union`s), taking effect for scalars within

GCC has `__attribute__((scalar_storage_order("big-endian")))`. Note that the attribute is applied on `struct`s (and `union`s), taking effect for scalars within them, but does not recurse into further aggregates.