+// ----------------------------------------------------------------------------
+// declare predefined conversion objects
+// ----------------------------------------------------------------------------
+
+// conversion to be used with all standard functions affected by locale, e.g.
+// strtol(), strftime(), ...
+extern WXDLLIMPEXP_DATA_BASE(wxMBConv&) wxConvLibc;
+
+// conversion ISO-8859-1/UTF-7/UTF-8 <-> wchar_t
+extern WXDLLIMPEXP_DATA_BASE(wxCSConv&) wxConvISO8859_1;
+extern WXDLLIMPEXP_DATA_BASE(wxMBConvUTF7&) wxConvUTF7;
+extern WXDLLIMPEXP_DATA_BASE(wxMBConvUTF8&) wxConvUTF8;
+
+// conversion used for the file names on the systems where they're not Unicode
+// (basically anything except Windows)
+//
+// this is used by all file functions, can be changed by the application
+//
+// by default UTF-8 under Mac OS X and wxConvLibc elsewhere (but it's not used
+// under Windows normally)
+extern WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvFileName;
+
+// backwards compatible define
+#define wxConvFile (*wxConvFileName)
+
+// the current conversion object, may be set to any conversion, is used by
+// default in a couple of places inside wx (initially same as wxConvLibc)
+extern WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvCurrent;
+
+// ???
+extern WXDLLIMPEXP_DATA_BASE(wxCSConv&) wxConvLocal;
+