1 files changed, 4 insertions, 3 deletions
diff --git a/cpp/src/qpid/sys/AggregateOutput.h b/cpp/src/qpid/sys/AggregateOutput.h
index fcd0d4c2f7..b33113796c 100644
--- a/cpp/src/qpid/sys/AggregateOutput.h
+++ b/cpp/src/qpid/sys/AggregateOutput.h
@@ -7,9 +7,9 @@
  * to you under the Apache License, Version 2.0 (the
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
- * 
+ *
  *   http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
@@ -43,9 +43,10 @@ namespace sys {
     public:
         AggregateOutput(OutputControl& c) : next(0), control(c) {};
         //this may be called on any thread
+        QPID_COMMON_EXTERN void abort();
         QPID_COMMON_EXTERN void activateOutput();
         QPID_COMMON_EXTERN void giveReadCredit(int32_t);
-        
+
         //all the following will be called on the same thread
         QPID_COMMON_EXTERN bool doOutput();
         QPID_COMMON_EXTERN bool hasOutput();