*{"$callpkg\::$_"} = \&{"$pkg\::$_"} foreach @_;

[download]
... When I tried to feed the debugger with this: 
&{"$pkg\::$_"}

[download]

\&... would never do what &... does. \&... takes a reference to a subroutine while &... invokes a subroutine. So what &{"$pkg\::$_"} does is rather irrelevant. It is indeed unfortunate that Params::Classify::is_string() stupidly produces an endless recursive loop when not given any parameters. But that likely has nothing to do with your original problem.

The author of that module even included: 

sub is_string($);

[download]

Which makes it fatal to call is_string() with no arguments... unless you use the prefix & to disable sub prototype checking, as you did. So even a bug report against the module might not yield anything.

It is crashing in the module Exporter, line 64:

How does it crash?

- tye        

In reply to Re^3: Multiple perl interpreters and Module::Runtime (&) by tye
in thread Multiple perl interpreters and Module::Runtime by daneus

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