--- libev/ev.c	2008/03/08 07:04:55	1.216
+++ libev/ev.c	2008/03/22 13:42:45	1.217
@@ -453,7 +453,7 @@
 
       nanosleep (&ts, 0);
 #elif defined(_WIN32)
-      Sleep (delay * 1e3);
+      Sleep ((unsigned long)(delay * 1e3));
 #else
       struct timeval tv;