Index: src/OFThread.m
==================================================================
--- src/OFThread.m
+++ src/OFThread.m
@@ -14,10 +14,11 @@
  * file.
  */
 
 #define OF_THREAD_M
 #define _POSIX_C_SOURCE 200112L
+#define _POSIX_TIMERS
 #define __NO_EXT_QNX
 
 #include "config.h"
 
 #include <stdlib.h>