What this does, of course, is that Perl tells me that $global_variables 1-3 in the file lib.pl need an explicit package name and compilation fails.

It fails for me in a completely different way. Even if I use the Switch module. Which takes a scalar as an argument not a subroutine.

Which version of perl are you using?

But the answer to one of your questions is to use our instead of my.

In reply to Re: What to use instead of global variables by Cody Fendant
in thread What to use instead of global variables by tunafish

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