By the way, it looks like perl 5.9.1 (and thus the eventual 5.10.0) will get a UNITCHECK that is defined to run at the end of compliation of that "compilation unit" (string eval, do file, require). That should fix the problem.

I think that won't be in 5.9.1. It's mentioned in the perl591delta just in the todo-for-5.10 list, and 5.9.1 should be "released" any time now.

The feature needs more discussion, anyway. As is, it doesn't sound like it would work for a module that wants something to run when the thing using it is done compiling.