From 24d58d7e64ec9c81f4d2daf0ed4bc01a5086ec8f Mon Sep 17 00:00:00 2001 From: Robert Haas Date: Fri, 13 Jul 2012 16:33:41 -0400 Subject: [PATCH] Support dependency barriers. --- src/include/storage/barrier.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/src/include/storage/barrier.h b/src/include/storage/barrier.h index cd85633c13..dbcc0f8a64 100644 --- a/src/include/storage/barrier.h +++ b/src/include/storage/barrier.h @@ -20,4 +20,12 @@ */ #include "port/atomics.h" +/* + * If dependency barriers are undefined, we define them as a no-op. The only + * known platform where anything more is required is DEC Alpha. + */ +#if !defined(pg_read_barrier_depends) +#define pg_read_barrier_depends() +#endif + #endif /* BARRIER_H */ -- 2.39.5