--- libev/libev.m4	2007/12/02 00:35:26	1.7
+++ libev/libev.m4	2007/12/22 05:48:04	1.8
@@ -14,6 +14,14 @@
    fi
 ])
 
+AC_CHECK_FUNC(nanonsleep, [], [ 
+   if test -z "$LIBEV_M4_AVOID_LIBRT"; then
+      AC_CHECK_LIB(rt, nanonsleep) 
+      unset ac_cv_func_nanonsleep
+      AC_CHECK_FUNCS(nanonsleep)
+   fi
+])
+
 AC_CHECK_LIB(m, ceil)