eliminate some unnecessary uses of base_qobject * dw-main-window.h, dw-main-window.cc (dw_main_window::m_octave_qobj): Delete unused data member. (dw_main_window::dw_main_window): Eliminate base_qobject argument. Change all uses. * octave-dock-widget.h, octave-dock-widget.cc (octave_label_widget::m_octave_qobj): Delete unused data member. (label_dock_widget::label_dock_widget): Eliminate base_qobject argument. Change all uses. (octave_dock_widget::m_octave_qobj): New data member. (octave_dock_widget::octave_dock_widget): Initialize it here instead of passing base_qobject argument to label_dock_widget base class constructor. * variable-editor.h, variable-editor.cc (variable_dock_widget::variable_dock_widget, variable_editor_stack::variable_editor_stack, variable_editor_view::variable_editor_view): Eliminate base_qobject argument. Change all uses. (variable_editor_stack::m_octave_qobj): Delete unused data member. (variable_editor_view::m_octave_qobj): Delete unused data member. * documentation.h, documentation.cc (documentation::documentation): Eliminate base_qobject argument. Change all uses. (documentation::m_octave_qobj): Delete unused data member.

--- a/libgui/src/documentation.h	Sun Dec 25 12:46:53 2022 -0500
+++ b/libgui/src/documentation.h	Sun Dec 25 15:19:22 2022 -0500
@@ -39,7 +39,6 @@
 
 OCTAVE_BEGIN_NAMESPACE(octave)
 
-  class base_qobject;
   class documentation;
   class documentation_bookmarks;
 
@@ -99,7 +98,7 @@
 
   public:
 
-    documentation (QWidget *parent, base_qobject& oct_qobj);
+    documentation (QWidget *parent);
     ~documentation (void);
 
     /*!
@@ -160,8 +159,6 @@
     //! Select all occurrences of a string in the doc browser
     void select_all_occurrences (const QString& text);
 
-    base_qobject& m_octave_qobj;
-
     QHelpEngine *m_help_engine;
     QString m_internal_search;
     documentation_browser *m_doc_browser;