diff -Naur gxemul-0.7.0-old/src/include/thirdparty/pcireg.h gxemul-0.7.0/src/include/thirdparty/pcireg.h
--- gxemul-0.7.0-old/src/include/thirdparty/pcireg.h	2021-04-22 15:04:14.000000000 -0300
+++ gxemul-0.7.0-new/src/include/thirdparty/pcireg.h	2021-06-28 18:41:13.063065322 -0300
@@ -12,9 +12,6 @@
 #undef __noreturn__
 #endif
 
-#define __attribute__(x)  /*  */
-#define __noreturn__  /*  */
-
 /*
  * Copyright (c) 1995, 1996, 1999, 2000
  *     Christopher G. Demetriou.  All rights reserved.
diff -Naur gxemul-0.7.0-old/src/include/thirdparty/sgi_arcbios.h gxemul-0.7.0/src/include/thirdparty/sgi_arcbios.h
--- gxemul-0.7.0-old/src/include/thirdparty/sgi_arcbios.h	2021-04-22 15:04:14.000000000 -0300
+++ gxemul-0.7.0-new/src/include/thirdparty/sgi_arcbios.h	2021-06-28 18:41:33.549981505 -0300
@@ -14,9 +14,6 @@
 #undef __noreturn__
 #endif
 
-#define	__attribute__(x)  /*  */
-#define	__noreturn__  /*  */
-
 /*	$NetBSD: arcbios.h,v 1.3 2001/12/06 14:59:02 rafal Exp $	*/
 
 /*-