urxvt: installing files outside common directory structure

during upgrade of `rxvt-unicode' I've got the warning "rxvt-unicode requests to install files outside the common directory structure!" simple question: and where might that be?? I need to know in order to get the mirroring of the ports tree from desktop to labtop machine via `rsync' right (much faster than installing everything twice...). I propose to modify the above warning and explicitly state (IN CAPS) what files are installed where outside `/opt/local'. thanks joerg ps: don't laught at the Cc address ...