|Syntactic Confectionery Delight|
There's 15 failed tests ("Failed 15/20 test programs."): I'll need to go through each to find the actual problems.
If all are simply quoting uses, then the solution is straightforward (if a little tedious to implement across the board). Let's see how that pans out before worrying about config modifications and the like.
I recall you specified a minimum Perl version of v5.6. I've checked https://perldoc.perl.org/5.6.0/functions/quotemeta and https://perldoc.perl.org/5.6.0/perlop; quotemeta, \Q and \E are all available in that version, so no issues there.
"If all else fails I will have to resort to prompting the user during installation. Any opinions on that style?"
As I said, let's wait and see if secondary options are necessary; however, my general "opinions on that style" are:
"Thanks for your time spent and valuable feedback. I am not in a hurry, please work on it in your own pace."
No worries. I am rather eager to see how this works.
I have, in fact, spent most of this week (at $work) modifying modules and repeatedly going through the make cycle, tweaking tests to reflect the changes. While I'm happy to do this, "All work and no play makes Ken a dull boy.", so I need a break. As I said this morning, I can probably look into this further over the weekend. [Current lockdown restrictions means that I'm not even allowed guests in my home, so I'm certainly free to do this work.]