Applied patch [ 679397 ] remove GPL code from motif build

from Ian Brown, with some modifications; this patch replaces the (GPL)
Motif ComboBox with an implementation based on the native (for Motif 2.0)
ComboBox. The old ComboBox is still used as a fallback for older Motif
versions. My modifications include some method's implementation and
some workarounds for LessTif.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@19114 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/motif/combobox.h

@@ -60,7 +60,8 @@ public:
     virtual void SetSelection(int n);
     virtual int FindString(const wxString& s) const;
     virtual wxString GetString(int n) const ;
-    
+    virtual void SetString(int n, const wxString& s);
+
     // Text field functions
     virtual wxString GetValue() const ;
     virtual void SetValue(const wxString& value);