zentara has asked for the wisdom of the Perl Monks concerning the following question:

This is a question prompted by What modules are we actually using?. I was wondering if there is some core Perl module which has to be loaded, when it loads another module thru use or require? My idea would be to temporarily modify that module, to print to a log file.

UPDATE ( 1 day later ) I did figure out how to use a custom module, loaded with PERL5OPT, to do this. See my reply below.

I'm not really a human, but I play one on earth. flash japh