I really set out to explore Inline::CPP, but was disappointed
That module has been unmaintained for about 8 years, now. It would be really good if some competent person would step forward and take over maintainership - as, I believe, an up-to-date Inline::CPP could be a very handy tool.
Last time I heard from Neil Watkiss (the original author) he had no intention of ever having any involvement with it again.