Index: src/sqlite.h.in
==================================================================
--- src/sqlite.h.in
+++ src/sqlite.h.in
@@ -5329,10 +5329,11 @@
   int idxNum;                /* Number used to identify the index */
   char *idxStr;              /* String, possibly obtained from sqlite3_malloc */
   int needToFreeIdxStr;      /* Free idxStr using sqlite3_free() if true */
   int orderByConsumed;       /* True if output is already ordered */
   double estimatedCost;           /* Estimated cost of using this index */
+  /* Fields below are only available in SQLite 3.8.2 and later */
   sqlite3_int64 estimatedRows;    /* Estimated number of rows returned */
 };
 
 /*
 ** CAPI3REF: Virtual Table Constraint Operator Codes