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-rw-r--r--src/backend/port/atomics.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/backend/port/atomics.c b/src/backend/port/atomics.c
index 3f53ec13300..f57e6723017 100644
--- a/src/backend/port/atomics.c
+++ b/src/backend/port/atomics.c
@@ -32,6 +32,14 @@ pg_spinlock_barrier(void)
}
#endif
+#ifdef PG_HAVE_COMPILER_BARRIER_EMULATION
+void
+pg_extern_compiler_barrier(void)
+{
+ /* do nothing */
+}
+#endif
+
#ifdef PG_HAVE_ATOMIC_FLAG_SIMULATION