From d6caa7673493156b5c2a54dc78342ae9dc035edf Mon Sep 17 00:00:00 2001
From: Vas Crabb <vas@vastheman.com>
Date: Sat, 14 Jan 2017 09:58:37 +1100
Subject: [PATCH] non-arkanoid games lack muxed analog inputs (nw)

---
 src/mame/includes/arkanoid.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mame/includes/arkanoid.h b/src/mame/includes/arkanoid.h
index 00cd57af351..c340a8ce5df 100644
--- a/src/mame/includes/arkanoid.h
+++ b/src/mame/includes/arkanoid.h
@@ -54,7 +54,7 @@ public:
 	uint8_t m_hexaa_from_sub;
 
 	/* devices */
-	required_ioport_array<2> m_muxports;
+	optional_ioport_array<2> m_muxports;
 	required_device<cpu_device> m_maincpu;
 	optional_device<arkanoid_mcu_device_base> m_mcuintf;
 	required_device<gfxdecode_device> m_gfxdecode;