As far as I can see, the only 5.10 feature used in the code is say. In older Perls, use print with a "\n" at the end, or define
sub say {
    print @_, "\n";
}

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لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In reply to Re^3: Looking for an existing package to crosslink different IDs with each other by choroba
in thread Looking for an existing package to crosslink different IDs with each other by colicab

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