|Just another Perl shrine|
Re^3: Why perl-5.30.3 doesn't compile on my Mac?by syphilis (Archbishop)
|on Nov 19, 2020 at 22:52 UTC||Need Help??|
*** Unexpected product version 11.0.
The error message comes from hints/Darwin.sh, which apparently hasn't considered the coming of version 11.0.
Presumably something needs to be done to that file and/or Configure itself to overcome the problem.
Maybe ask about that on p5p if you don't receive better follow-up advice here.
(I'm assuming that the additional advice to "*** Try running sw_vers and see what its ProductVersion says" didn't help much.)