extension CHANGE checking for presence of extension instances' mandatory substatements
diff --git a/src/parser.h b/src/parser.h
index 98e1c54..355a87f 100644
--- a/src/parser.h
+++ b/src/parser.h
@@ -47,6 +47,9 @@
 
 /**@} jsondata */
 
+/* list of YANG statement strings */
+extern const char *ly_stmt_str[];
+
 enum LY_IDENT {
     LY_IDENT_SIMPLE,   /* only syntax rules */
     LY_IDENT_FEATURE,