--- m4/ost_pthread.m4.orig	Fri Jan 16 07:26:48 2009
+++ m4/ost_pthread.m4	Thu Apr  2 04:56:04 2009
@@ -244,6 +244,8 @@ CXXFLAGS="$ac_save_CXXFLAGS"
 		])
 	])
 
+	AC_CHECK_FUNCS(clock_nanosleep)
+
 	AC_CHECK_LIB(rt, mlockall,[
 			AC_DEFINE(HAVE_MLOCK, [1], [have mlock])
 			AC_DEFINE(HAVE_MLOCKALL, [1], [have memlockall])