readline problem with gui branch ?

[Ben Abbott]

Jacob,

I may be catching you in the middle of a larger change, but after the changeset 
below, I'm encountering an error building.

        http://hg.savannah.gnu.org/hgweb/octave/rev/626a8ff2fe8c

/Developer/usr/bin/llvm-g++-4.2 -headerpad_max_install_names -o 
../bin/octave-gui octave-link.o octave-main-thread.o lexer-octave-gui.o 
file-editor.o file-editor-tab.o main-window.o workspace-view.o 
history-dockwidget.o files-dockwidget.o settings-dialog.o octave-gui.o 
resource-manager.o welcome-wizard.o workspace-model.o terminal-dockwidget.o 
octave-qt-event-listener.o moc_octave-main-thread.o moc_lexer-octave-gui.o 
moc_file-editor.o moc_file-editor-interface.o moc_file-editor-tab.o 
moc_main-window.o moc_workspace-view.o moc_history-dockwidget.o 
moc_files-dockwidget.o moc_settings-dialog.o moc_welcome-wizard.o 
moc_workspace-model.o moc_terminal-dockwidget.o moc_octave-qt-event-listener.o 
qrc_resource.o    -L/usr/local/lib/octave/3.7.0+ -lqscintilla2 
-L../qterminal/libqterminal/ -lqterminal -lm -loctinterp -loctave -lcruft 
-lutil -L/opt/local/lib -lQtWebKit_debug -lQtGui_debug -lQtNetwork_debug 
-lQtCore_debug 
Undefined symbols for architecture x86_64:
  "_rl_line_buffer", referenced from:
      octave_event::finish_readline_event() const  in main-window.o
  "_rl_end", referenced from:
      octave_event::finish_readline_event() const  in main-window.o
  "_rl_point", referenced from:
      octave_event::finish_readline_event() const  in main-window.o
  "_rl_done", referenced from:
      octave_event::finish_readline_event() const  in main-window.o

Ben