--- casu.h.orig	2011-03-13 21:47:45.000000000 +0100
+++ casu.h	2011-03-13 21:41:39.000000000 +0100
@@ -83,7 +83,7 @@
 #   define MAXHOSTNAMELEN	256
 #endif
 
-#if HAVE_UTMPX_H
+#if HAVE_UTMPX_H && !defined(linux)
 #   include <utmpx.h>			/* assume includes <utmp.h> */
 #   define PATH_UTMP		UTMPX_FILE
 #   define getutent		getutxent