export wxSettableHeaderColumn from DLL

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@57247 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/include/wx/headercol.h b/include/wx/headercol.h
index 183e46d097bff611aa5f0dba2fb840ee664bab71..a84c175858b797c638aa73a601d97326b9f7fdb7 100644 (file)
--- a/include/wx/headercol.h
+++ b/include/wx/headercol.h
@@ -153,7 +153,7 @@ protected:
 // wxSettableHeaderColumn: column which allows to change its fields too
 // ----------------------------------------------------------------------------
 
-class wxSettableHeaderColumn : public wxHeaderColumn
+class WXDLLIMPEXP_CORE wxSettableHeaderColumn : public wxHeaderColumn
 {
 public:
     virtual void SetTitle(const wxString& title) = 0;