BEGIN { eval { require Time::HiRes; import Time::HiRes qw(time) }; if($@) { warn "Unable to import Time::HiRes\n" }; } #### eval { require Time::HiRes; import Time::HiRes qw(time) }; print time() #### BEGIN { eval { require Time::HiRes; import Time::HiRes qw(time) }; } print time()