@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2008-2022 Jonathan Schleifer <js@nil.im>
+ * Copyright (c) 2008-2023 Jonathan Schleifer <js@nil.im>
  *
  * All rights reserved.
  *
  * This file is part of ObjFW. It may be distributed under the terms of the
  * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
@@ -45,12 +45,14 @@
 #ifdef OF_IOS
 # undef HAVE_ISATTY
 #endif
 
 #ifdef OF_AMIGAOS
+# define Class IntuitionClass
 # include <proto/exec.h>
 # include <proto/dos.h>
+# undef Class
 # undef HAVE_ISATTY
 #endif
 
 #ifdef OF_WII_U
 # define BOOL WUT_BOOL
@@ -463,11 +465,11 @@
 #endif
 }
 
 - (int)columns
 {
-#if defined(HAVE_SYS_IOCTL_H) && defined(TIOCGWINSZ) && \
+#if defined(HAVE_IOCTL) && defined(TIOCGWINSZ) && \
     !defined(OF_AMIGAOS) && !defined(OF_WII_U)
 	struct winsize ws;
 
 	if (ioctl(_fd, TIOCGWINSZ, &ws) != 0)
 		return -1;
@@ -478,11 +480,11 @@
 #endif
 }
 
 - (int)rows
 {
-#if defined(HAVE_SYS_IOCTL_H) && defined(TIOCGWINSZ) && \
+#if defined(HAVE_IOCTL) && defined(TIOCGWINSZ) && \
     !defined(OF_AMIGAOS) && !defined(OF_WII_U)
 	struct winsize ws;
 
 	if (ioctl(_fd, TIOCGWINSZ, &ws) != 0)
 		return -1;