Merge remote-tracking branch 'origin/mdb.RE/0.9' into OPENLDAP_REL_ENG_2_4

libraries/liblmdb/CHANGES

@@ -8,6 +8,7 @@ LMDB 0.9.15 Release Engineering
 	Fix mdb_load with large values (ITS#8066)
 	Fix to retry writes on EINTR (ITS#8106)
 	Fix mdb_cursor_del on empty DB (ITS#8109)
+	Fix MDB_INTEGERDUP key compare (ITS#8117)
 	Added workaround for fdatasync bug in ext3fs
 	Build
 		Don't use -fPIC for static lib

libraries/liblmdb/mdb.c

@@ -7076,13 +7076,15 @@ mdb_xcursor_init1(MDB_cursor *mc, MDB_node *node)
 				mx->mx_db.md_flags |= MDB_INTEGERKEY;
 		}
 	}
-	DPRINTF(("Sub-db -%u root page %"Z"u", mx->mx_cursor.mc_dbi,
-		mx->mx_db.md_root));
-	mx->mx_dbflag = DB_VALID|DB_DIRTY; /* DB_DIRTY guides mdb_cursor_touch */
 #if UINT_MAX < SIZE_MAX
-	if (mx->mx_dbx.md_cmp == mdb_cmp_int && mx->mx_db.md_pad == sizeof(size_t))
+	if (mc->mc_dbx->md_dcmp == mdb_cmp_int && mx->mx_db.md_pad == sizeof(size_t)) {
+		mc->mc_dbx->md_dcmp = mdb_cmp_clong;
 		mx->mx_dbx.md_cmp = mdb_cmp_clong;
+	}
 #endif
+	DPRINTF(("Sub-db -%u root page %"Z"u", mx->mx_cursor.mc_dbi,
+		mx->mx_db.md_root));
+	mx->mx_dbflag = DB_VALID|DB_DIRTY; /* DB_DIRTY guides mdb_cursor_touch */
 }
 
 /** Initialize a cursor for a given transaction and database. */