Index: kernel/generic/include/log.h
===================================================================
--- kernel/generic/include/log.h	(revision 10de84286f36c6e4f3f92d59c073639668ffe9a1)
+++ kernel/generic/include/log.h	(revision facacc712e3d87d7301754b109c9582ef1ef29e4)
@@ -36,4 +36,5 @@
 #define KERN_LOG_H_
 
+#include <errno.h>
 #include <stdarg.h>
 #include <stddef.h>