[Bug bootstrap/104887] [9/10/11 only] mold linker is not detected properly

[rui314 at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104887

--- Comment #2 from Rui Ueyama <rui314 at gmail dot com> ---
What kind of regression are you worry about?