diff --git a/include/wx/window.h b/include/wx/window.h
index 5edeba5569..44a4084193 100644
--- a/include/wx/window.h
+++ b/include/wx/window.h
@@ -12,6 +12,10 @@
 #ifndef _WX_WINDOW_H_BASE_
 #define _WX_WINDOW_H_BASE_
 
+#ifdef __GNUG__
+    #pragma interface "windowbase.h"
+#endif
+
 // ----------------------------------------------------------------------------
 // headers which we must include here
 // ----------------------------------------------------------------------------
@@ -719,6 +723,10 @@ private:
     // contains the last id generated by NewControlId
     static int ms_lastControlId;
 
+    // no copy ctor/assignment operator
+    wxWindowBase(const wxWindowBase&);
+    wxWindowBase& operator=(const wxWindowBase&);
+
     DECLARE_EVENT_TABLE()
 };
 
diff --git a/src/common/wincmn.cpp b/src/common/wincmn.cpp
index fd7ded32ac..66390ee06f 100644
--- a/src/common/wincmn.cpp
+++ b/src/common/wincmn.cpp
@@ -17,6 +17,10 @@
 // headers
 // ----------------------------------------------------------------------------
 
+#ifdef __GNUG__
+    #pragma implementation "windowbase.h"
+#endif
+
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -78,7 +82,6 @@ END_EVENT_TABLE()
 void wxWindowBase::InitBase()
 {
     // no window yet, no parent nor children
-//    m_widget = (WXWidget)0;
     m_parent = (wxWindow *)NULL;
     m_windowId = -1;
     m_children.DeleteContents( FALSE ); // don't auto delete node data