--- ixemul-48.2.orig/library/ixemul.h	2001-08-21 17:33:24.000000000 +0200
+++ ixemul-48.2/library/ixemul.h	2012-08-03 18:58:17.000000000 +0200
@@ -294,8 +294,10 @@
 extern int has_68040_or_up;
 extern int has_68060_or_up;
 
+#ifndef AFB_68060
 #define AFB_68060         (7)
 #define AFF_68060         (1L<<7)
+#endif
 
 #define usetup            struct user *u_ptr=getuser(SysBase->ThisTask)