From a7adb20f24a3acc4cd300b9fb12e07ee3dcfb8e3 Mon Sep 17 00:00:00 2001
From: Panu Matilainen <pmatilai@redhat.com>
Date: Tue, 19 Sep 2017 09:56:36 +0200
Subject: [PATCH] fall back to DB_PRIVATE on DB_VERSION_MISMATCH

---
 ext/repo_rpmdb.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/ext/repo_rpmdb.c b/ext/repo_rpmdb.c
index c7000a9..85e327c 100644
--- a/ext/repo_rpmdb.c
+++ b/ext/repo_rpmdb.c
@@ -1246,7 +1246,13 @@ opendbenv(struct rpmdbstate *state)
     {
 #if defined(FEDORA) || defined(MAGEIA)
       int serialize_fd = serialize_dbenv_ops(state);
-      r = dbenv->open(dbenv, dbpath, DB_CREATE|DB_INIT_CDB|DB_INIT_MPOOL, 0644);
+      int eflags = DB_CREATE|DB_INIT_CDB|DB_INIT_MPOOL;
+      r = dbenv->open(dbenv, dbpath, eflags, 0644);
+      if (r == DB_VERSION_MISMATCH)
+        {
+          eflags |= DB_PRIVATE;
+          r = dbenv->open(dbenv, dbpath, eflags, 0644);
+        }
       if (serialize_fd >= 0)
 	close(serialize_fd);
 #else
-- 
2.14.1