Index: uspace/lib/c/include/sys/time.h
===================================================================
--- uspace/lib/c/include/sys/time.h	(revision 431d6d6a5bc501f28e40f42930d836850a1b2714)
+++ uspace/lib/c/include/sys/time.h	(revision 5fd3f2d54a5ccebad2edc13fe02afe1bbcac252f)
@@ -62,4 +62,6 @@
 extern int gettimeofday(struct timeval *tv, struct timezone *tz);
 
+extern void udelay(useconds_t);
+
 #endif