;; Use cperl-mode instead of the default perl-mode

(add-to-list 'auto-mode-alist '("\\.\\([pP]\\([Llm]\\|[oO][dD]\\)\\|al\\)\\'" . cperl-mode))
(add-to-list 'interpreter-mode-alist '("perl" . cperl-mode))
(add-to-list 'interpreter-mode-alist '("perl5" . cperl-mode))
(add-to-list 'interpreter-mode-alist '("miniperl" . cperl-mode))

##</code><code>##

M-x customize-group RET cperl-indentation-details RET