urxvt: default locale unavailable, check LC_* and LANG variables. Continuing.
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
        LANGUAGE = (unset),
        LC_ALL = (unset),
        LC_COLLATE = "C",
        LANG = "it_IT.UTF-8"
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
urxvt: perl extension '...' not found in perl library search path
urxvt: perl extension 'fullscreen' not found in perl library search path
urxvt: perl extension 'resize-font' not found in perl library search path
urxvt: perl extension 'url-select' not found in perl library search path
urxvt: unable to load base fontset, please specify a valid one using -fn, aborting.