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-rw-r--r--tools/perf/util/ui/setup.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/util/ui/setup.c b/tools/perf/util/ui/setup.c
index fbf1a145492f..ee46d671db59 100644
--- a/tools/perf/util/ui/setup.c
+++ b/tools/perf/util/ui/setup.c
@@ -6,6 +6,9 @@
#include "../debug.h"
#include "browser.h"
#include "helpline.h"
+#include "ui.h"
+
+pthread_mutex_t ui__lock = PTHREAD_MUTEX_INITIALIZER;
static void newt_suspend(void *d __used)
{