[Bug sanitizer/84285] Fail to statically link with -fsanitize=undefined

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 43371
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43371&action=edit
gcc8-pr84285.patch

Untested fix.