--- a/include/unix/applicfg.h	Wed May 09 13:16:00 2018 +0200
+++ b/include/unix/applicfg.h	Thu Jan 24 13:49:40 2019 +0100
@@ -78,10 +78,6 @@
 /* -------------------------------------- */
 #ifdef __KERNEL__
 #	define MSG(...) printk (__VA_ARGS__)
-//#elif defined USE_RTAI
-//#	define MSG(...) rt_printk (__VA_ARGS__)
-#elif defined USE_XENO
-#	define MSG(...)
 #else
 #	include <stdio.h>
 #	define MSG(...) printf (__VA_ARGS__)