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-rw-r--r--backends/events/default/default-events.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/backends/events/default/default-events.h b/backends/events/default/default-events.h
index b2cd1354cc..e481accc3e 100644
--- a/backends/events/default/default-events.h
+++ b/backends/events/default/default-events.h
@@ -28,6 +28,9 @@
#include "common/events.h"
#include "common/savefile.h"
+#include "common/mutex.h"
+
+class OSystem;
/*
At some point we will remove pollEvent from OSystem and change