[Bug driver/91794] exception and unwind state is not carried to LTO but controls EH vs debug frame

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91794

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Created attachment 46890
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46890&action=edit
patch for lto-wrapper

This instead makes lto-wrapper append -funwind-tables when one CU had that
enabled.