Maybe not detect, but you can predeclare like you would a variable using the subs pragma.

use subs qw( foo bar baz );


cp
----
"Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic."

In reply to Re: Compile-time checking for undef subroutines? by crouchingpenguin
in thread Compile-time checking for undef subroutines? by mr.dunstan

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