Doc tweak - txn flags

diff --git a/libraries/libmdb/mdb.c b/libraries/libmdb/mdb.c
index a336ab8dc2fe00ff3bf7968a92720b988f629e85..8cf7ac28b64af4363f7b5fef02be62d0ce6e54bc 100644 (file)
--- a/libraries/libmdb/mdb.c
+++ b/libraries/libmdb/mdb.c
@@ -732,9 +732,14 @@ struct MDB_txn {
         */
        MDB_dbi         mt_numdbs;
 
+/** @defgroup mdb_txn  Transaction Flags
+ *     @ingroup internal
+ *     @{
+ */
 #define MDB_TXN_RDONLY         0x01            /**< read-only transaction */
 #define MDB_TXN_ERROR          0x02            /**< an error has occurred */
-       unsigned int    mt_flags;
+/** @} */
+       unsigned int    mt_flags;               /**< @ref mdb_txn */
        /** Tracks which of the two meta pages was used at the start
         *      of this transaction.
         */