http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44561
--- Comment #4 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-10-10 13:53:08 UTC --- Another way to handle it in LTO would be to simply stream LANG_TYPE, assuming it must be completely opaque to the rest of the compiler anyway. Probably better than the ptr_type_node idea. I will give that a try if no other ideas pop up.
