Index: uspace/lib/libc/include/futex.h
===================================================================
--- uspace/lib/libc/include/futex.h	(revision 4db6eaf06a371efbb5d1f20919cbf3e224a20036)
+++ uspace/lib/libc/include/futex.h	(revision ed212f723416c47b9cec06720f133c26c1fb3e0a)
@@ -46,5 +46,4 @@
 extern int futex_down(futex_t *futex);
 extern int futex_trydown(futex_t *futex);
-extern int futex_down_timeout(futex_t *futex, uint32_t usec, int flags);
 extern int futex_up(futex_t *futex);