I want something strange.
Here is my attempt 
package Xxx;

sub xxx {
    my $xxx = eval { die 'xxx' };
}

package main;

*Xxx::eval = sub(&) {
    warn "You should die";
    $_[0]->();
};

Xxx::xxx();

[download]
But this doesn't work.
Or may be you can tell me how to prevent exceptions catching in some package without source code modification of this package?

In reply to Any chance to redefine "eval BLOCK" in the package? by OlegG

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