If you install Perl by compiling from source, beginning with the Configure script, then you do not need anything in PERL5LIB. This script creates a makefile which contains all the information the Perl executable needs: The executable itself knows where to find the core libraries.

To debug your situation, I suggest that you deactivate all settings of PERL5LIB and then examine @INC for all your Perl executables:

perl -E 'say for @INC'

In your listings there are some occurrences of lib/lib/ which seems to indicate that modules have been installed into wrong places.

In reply to Re: what should be in PERL5LIB after installing from source the 5.40.1 version on MacOS (am64) by haj
in thread what should be in PERL5LIB after installing from source the 5.40.1 version on MacOS (am64) by kwolcott

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