You can forget the definition of the sub, just put the following before the second eval: 
delete $::{foo};

[download]

Alternatively, use different packages in the evals. Just prepend 

package eval1; # eval2 respectively

[download]

to each string.

لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In reply to Re: Prevent import of subroutines from eval by choroba
in thread Prevent import of subroutines from eval by Swandog

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