--- libev-4.15/ev.c.bak	2013-03-01 13:10:48.000000000 +0200
+++ libev-4.15/ev.c	2013-04-28 14:19:02.449797493 +0300
@@ -2119,7 +2119,7 @@ evpipe_init (EV_P)
           /* this branch does not do anything sensible on windows, */
           /* so must not be executed on windows */
 
-          dup2 (fds [1], evpipe [1]);
+          dup3 (fds [1], evpipe [1], O_CLOEXEC);
           close (fds [1]);
         }