--- libev/ev_port.c	2008/10/29 06:32:48	1.12
+++ libev/ev_port.c	2008/11/21 02:10:34	1.13
@@ -89,7 +89,7 @@
   ts.tv_nsec = (long)(timeout - (ev_tstamp)ts.tv_sec) * 1e9;
   res = port_getn (backend_fd, port_events, port_eventmax, &nget, &ts);
 
-  if (res < 0)
+  if (res == -1)
     { 
       if (errno != EINTR && errno != ETIME)
         ev_syserr ("(libev) port_getn");