[Bug target/84148] CET shouldn't be enabled in 32-bit run-time libraries by default

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84148

--- Comment #15 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to igor.v.tsimbalist from comment #14)
> Created attachment 43410 [details]
> patch #3
> 
> The simplified patch.

Looks good to me.  Thanks.