From a937740aa0c47dc7a1a5e9be42dcea2dd3c81683 Mon Sep 17 00:00:00 2001 From: Hallvard Furuseth Date: Fri, 3 Jul 2015 22:38:50 +0200 Subject: [PATCH] ITS#7969 Wrap unportable __sync_synchronize in #if --- libraries/liblmdb/mdb.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c index 2d2486d..ae82bb2 100644 --- a/libraries/liblmdb/mdb.c +++ b/libraries/liblmdb/mdb.c @@ -3744,7 +3744,8 @@ mdb_env_write_meta(MDB_txn *txn) mp->mm_dbs[0] = txn->mt_dbs[0]; mp->mm_dbs[1] = txn->mt_dbs[1]; mp->mm_last_pg = txn->mt_next_pgno - 1; -#if !(defined(_MSC_VER) || defined(__i386__) || defined(__x86_64__)) +#if (__GNUC__ * 100 + __GNUC_MINOR__ >= 404) && /* TODO: portability */ \ + !(defined(__i386__) || defined(__x86_64__)) /* LY: issue a memory barrier, if not x86. ITS#7969 */ __sync_synchronize(); #endif