Try the following from a command prompt: 
perl -v

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I am guessing the version you will see is something like 5.005_03, which did not have the "our" keyword.

If so then I suggest: 

use vars qw(@ISA @EXPORT_OK);

[download]
Note that I recommend @EXPORT_OK over @EXPORT because of what is said in perldoc Exporter...

In reply to Re (tilly) 1: my first module by tilly
in thread my first module by jptxs

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