WXDLLIMPEXP_BASE bool wxRemoveFile(const wxString& file);
// Rename file
-WXDLLIMPEXP_BASE bool wxRenameFile(const wxString& file1, const wxString& file2);
+WXDLLIMPEXP_BASE bool wxRenameFile(const wxString& file1, const wxString& file2, bool overwrite = true);
// Get current working directory.
#if WXWIN_COMPATIBILITY_2_6