Index: uspace/lib/c/include/sys/time.h
===================================================================
--- uspace/lib/c/include/sys/time.h	(revision f3b405144d240cabac21367749e140e31fa2144b)
+++ uspace/lib/c/include/sys/time.h	(revision ba7b75378ae798b8d8179c4df6d951c791a80756)
@@ -62,4 +62,6 @@
 extern int gettimeofday(struct timeval *tv, struct timezone *tz);
 
+extern void udelay(useconds_t);
+
 #endif