Update / buildfix

Makefile.common

@@ -14,7 +14,6 @@ endif
 # EMULib sound, console, and other utility functions
 SOURCES_C := \
 	$(CORE_DIR)/libretro.c \
-	$(CORE_DIR)/Missing.c \
 	$(EMULIB)/EMULib.c \
 	$(EMULIB)/Sound.c \
 	$(FMSXDIR)/MSX.c \

libretro.c

@@ -32,7 +32,6 @@ static uint16_t XPal0;
 #define XBuf image_buffer
 #define WBuf image_buffer
 #include "CommonMux.h"
-#include "Missing.h"
 
 uint8_t XKeyState[20];
 #define XKBD_SET(K) XKeyState[Keys[K][0]]&=~Keys[K][1]