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You use the sigtrap pragma when you need the extra mojo it supplies. In absence of any code, any further answer would be pure speculation.

What mojo? Yes, do speculate

"Is local $SIG{INT} important?" -- that would depend on how it's used in the code that you haven't shown us. In absence of any code, any further answer would be pure speculation.

Is using local $SIG... important?

In reply to Re^2: When to use sigtrap, when to assign to %SIG? by Anonymous Monk
in thread When to use sigtrap, when to assign to %SIG? by Anonymous Monk

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