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-rw-r--r--tools/perf/util/parse-events.y2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index dcadf08f840a..c4ce888a2550 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -6,7 +6,9 @@
%{
+#ifndef NDEBUG
#define YYDEBUG 1
+#endif
#include <errno.h>
#include <linux/compiler.h>