printtool tries to open /usr/lib/rhs/control-panel/printtool.warn R/W. /usr is supposed to be able to be mounted RO.
Changed to component "tcltk", which appears to implement the "source" command this way.
what's the version of tcltk you used?
printtool is now glade/gtk based. Changing summary from "printtool tries to open /usr/lib/rhs/control-panel/printtool.warn" to describe tcl problem instead.
Still happening with current tcl? If so, a little script to reproduce this, would help.