use warnings; no warnings "void"; use strict; BEGIN { eval { require Devel::CallParser }; if($@ ne "") { require Test::More; Test::More::plan(skip_all => "Devel::CallParser unavailable"); } } use Test::More tests => 2; use Devel::CallParser (); use Data::Alias; is alias(42), 42; is alias{42}, 42; 1;