Index: uspace/lib/c/include/sys/time.h
===================================================================
--- uspace/lib/c/include/sys/time.h	(revision 3ebba9a734c61576f5558c6d86b7083e3d2d52b9)
+++ uspace/lib/c/include/sys/time.h	(revision 50cd28582abee1230bbf53465d0a889ea5ccf8ba)
@@ -62,4 +62,6 @@
 extern int gettimeofday(struct timeval *tv, struct timezone *tz);
 
+extern void udelay(useconds_t);
+
 #endif