(if (stringp notmuch-poll-script)
(unless (string= notmuch-poll-script "")
(unless (equal (call-process notmuch-poll-script nil nil) 0)
(error "Notmuch: poll script `%s' failed!" notmuch-poll-script)))
(if (stringp notmuch-poll-script)
(unless (string= notmuch-poll-script "")
(unless (equal (call-process notmuch-poll-script nil nil) 0)
(error "Notmuch: poll script `%s' failed!" notmuch-poll-script)))