General tidy-up (mainly typecasts) to allow the use of the SGI native

compilers (tested on Irix 6.5 with -mips3 -n32).


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@623 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk1/radiobut.cpp

@@ -50,7 +50,7 @@ bool wxRadioButton::Create( wxWindow *parent, wxWindowID id, const wxString& lab
   
   SetValidator( validator );
 
-  m_widget = gtk_radio_button_new_with_label( NULL, label );
+  m_widget = gtk_radio_button_new_with_label( (GSList *) NULL, label );
       
   SetLabel(label);