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-rw-r--r--cpp/src/qpid/broker/PriorityQueue.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/cpp/src/qpid/broker/PriorityQueue.cpp b/cpp/src/qpid/broker/PriorityQueue.cpp
index 4c23b8feed..e07e73d323 100644
--- a/cpp/src/qpid/broker/PriorityQueue.cpp
+++ b/cpp/src/qpid/broker/PriorityQueue.cpp
@@ -22,6 +22,7 @@
#include "qpid/broker/Queue.h"
#include "qpid/broker/QueuedMessage.h"
#include "qpid/framing/reply_exceptions.h"
+#include <cmath>
namespace qpid {
namespace broker {