bdr: fix compiler warning about unused variable

diff --git a/contrib/bdr/bdr_init_replica.c b/contrib/bdr/bdr_init_replica.c
index cea84c63e759ef25750f3fbedae4034ad6cdd7ee..ff679b9d2ed782bf4b4d4b7f30959fcacc562719 100644 (file)
--- a/contrib/bdr/bdr_init_replica.c
+++ b/contrib/bdr/bdr_init_replica.c
@@ -348,7 +348,7 @@ bdr_ensure_ext_installed(PGconn *pgconn, Name bdr_conn_name)
 
    if (PQntuples(res) == 1)
    {
-       char *default_version;
+       char *default_version PG_USED_FOR_ASSERTS_ONLY;
        /*
         * bdr ext is known to Pg, check install state.
         *