https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97865
--- Comment #15 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Jürgen Reuter from comment #14)
> If there is a git branch or so, I could also test it on my system with our
> code whether this works as expected.
Here you go - this is config.{sub, guess}, libtool and a small patch to enable
libsanitizer for darwin20 (which I'll likely push soon).
https://github.com/iains/gcc-git/tree/master-wip-config-darwin20
