diff -Naur x48-0.6.4.orig/src/emulate.c x48-0.6.4/src/emulate.c
--- x48-0.6.4.orig/src/emulate.c	2011-11-15 04:03:40.000000000 +0100
+++ x48-0.6.4/src/emulate.c	2020-06-23 21:30:30.895538239 +0200
@@ -695,7 +695,7 @@
   }
 }
 
-inline int
+static inline int
 #ifdef __FunctionProto__
 decode_8_thru_f(int op1)
 #else