add missing symbols to wxBase

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@20119 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/utilscmn.cpp

@@ -133,6 +133,15 @@ wxRegisterId (long id)
     wxCurrentId = id + 1;
 }
 
+// for GUI ports this is defined (without any real reason) in src/*/data.cpp
+// files
+#if !wxUSE_GUI
+
+WXDLLEXPORT_DATA(const wxChar *) wxFloatToStringStr = wxT("%.2f");
+WXDLLEXPORT_DATA(const wxChar *) wxDoubleToStringStr = wxT("%.2f");
+
+#endif // wxUSE_GUI
+
 void
 StringToFloat (const wxChar *s, float *number)
 {