Index: kernel/generic/include/log.h
===================================================================
--- kernel/generic/include/log.h	(revision 9ba415e8ec4bc684d1ba8a424cc83de1a57c7aa9)
+++ kernel/generic/include/log.h	(revision 36f0738ce13f32ad07d7932ca18f677cab815660)
@@ -36,4 +36,5 @@
 #define KERN_LOG_H_
 
+#include <errno.h>
 #include <stdarg.h>
 #include <stddef.h>