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-rw-r--r--src/mem/slicc/symbols/StateMachine.py5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/mem/slicc/symbols/StateMachine.py b/src/mem/slicc/symbols/StateMachine.py
index a110092b6..1eb72972f 100644
--- a/src/mem/slicc/symbols/StateMachine.py
+++ b/src/mem/slicc/symbols/StateMachine.py
@@ -453,7 +453,12 @@ std::vector<std::vector<Stats::Vector *> > $c_ident::transVec;
// for adding information to the protocol debug trace
stringstream ${ident}_transitionComment;
+
+#ifndef NDEBUG
#define APPEND_TRANSITION_COMMENT(str) (${ident}_transitionComment << str)
+#else
+#define APPEND_TRANSITION_COMMENT(str) do {} while (0)
+#endif
/** \\brief constructor */
$c_ident::$c_ident(const Params *p)