cperl-compilation-error-regexp-alist
cperl-compilation-error-regexp-alist is a variable defined in `cperl-mode.el'.
Its value is
(("^[^\n]* \\(file\\|at\\) \\([^ \n]+\\) [^\n]*line \\([0-9]+\\)[\\., \n]" 2 3))
Documentation:
Alist that specifies how to match errors in perl output.