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-rw-r--r--cpp/include/Ice/OutgoingAsync.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/cpp/include/Ice/OutgoingAsync.h b/cpp/include/Ice/OutgoingAsync.h
index 85acbc23c03..0c809e14f13 100644
--- a/cpp/include/Ice/OutgoingAsync.h
+++ b/cpp/include/Ice/OutgoingAsync.h
@@ -1,3 +1,4 @@
+
// **********************************************************************
//
// Copyright (c) 2003
@@ -27,7 +28,11 @@ namespace IceInternal
class BasicStream;
-class ICE_API OutgoingAsync : public ::IceUtil::Shared
+//
+// We need virtual inheritance from shared, because the user might use
+// multiple inheritance from IceUtil::Shared.
+//
+class ICE_API OutgoingAsync : virtual public ::IceUtil::Shared
{
public: