-#define wxConvFile wxConvLocal
-WXDLLIMPEXP_DATA_BASE(extern wxCSConv&) wxConvLocal;
-WXDLLIMPEXP_DATA_BASE(extern wxCSConv&) wxConvISO8859_1;
-WXDLLIMPEXP_DATA_BASE(extern wxMBConv *) wxConvCurrent;
+#ifdef __WXOSX__
+#define wxConvFile wxConvUTF8
+#else
+#define wxConvFile wxConvLibc
+#endif
+
+extern WXDLLIMPEXP_DATA_BASE(wxCSConv&) wxConvLocal;
+extern WXDLLIMPEXP_DATA_BASE(wxCSConv&) wxConvISO8859_1;
+extern WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvCurrent;