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-rw-r--r--ace/UPIPE_Stream.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/ace/UPIPE_Stream.h b/ace/UPIPE_Stream.h
index d6a9726bf40..53921bca065 100644
--- a/ace/UPIPE_Stream.h
+++ b/ace/UPIPE_Stream.h
@@ -23,6 +23,10 @@
#include "ace/Message_Queue.h"
#include "ace/UPIPE_Addr.h"
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+#pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
#if defined (ACE_HAS_THREADS)
// Use a typedef to make life easier later on.