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-rw-r--r--src/mame/includes/m79amb.h9
1 files changed, 8 insertions, 1 deletions
diff --git a/src/mame/includes/m79amb.h b/src/mame/includes/m79amb.h
index 63a3df47201..367e331efb3 100644
--- a/src/mame/includes/m79amb.h
+++ b/src/mame/includes/m79amb.h
@@ -1,5 +1,10 @@
// license:BSD-3-Clause
// copyright-holders:Al Kossow
+#ifndef MAME_INCLUDES_M79AMB_H
+#define MAME_INCLUDES_M79AMB_H
+
+#pragma once
+
#include "sound/discrete.h"
class m79amb_state : public driver_device
@@ -48,4 +53,6 @@ protected:
/*----------- defined in audio/m79amb.c -----------*/
-DISCRETE_SOUND_EXTERN( m79amb );
+DISCRETE_SOUND_EXTERN( m79amb_discrete );
+
+#endif // MAME_INCLUDES_M79AMB_H