>>>>> "t" == ts <decoux / moulon.inra.fr> writes: t> When you run extconf.rb you can give the options ^^^^^^^^^^ configure sorry, t> --with-tcl-dir, --with-tcl-include, --with-tcl-lib t> --with-tk-dir, --with-tk-include, --with-tk-lib t> --with-X11-dir, --with-X11-include, --with-X11-lib t> to specify specific directories Guy Decoux