-#ifdef ODF_READ_SUPPORT
-const bool ODF_READING_SUPPORTED = true;
-#else
-const bool ODF_READING_SUPPORTED = false;
-#endif
-
-#ifdef GNM_READ_SUPPORT
-const bool GNM_READING_SUPPORTED = true;
-#else
-const bool GNM_READING_SUPPORTED = false;
-#endif
-
-void
-spreadsheet_destroy (struct spreadsheet *s)