[Bug sanitizer/82379] [7/8 Regression] internal_sigreturn not defined in libasan.so or libubsan.so with -mx32

[steven at uplinklabs dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82379

--- Comment #6 from Steven Noonan <steven at uplinklabs dot net> ---
Seems to resolve the link issue. Not sure how to test that internal_sigreturn
does what it should, though.