--- libev/ev_select.c	2009/01/06 19:46:56	1.40
+++ libev/ev_select.c	2009/01/07 17:54:57	1.41
@@ -72,14 +72,14 @@
 
   {
 #if EV_SELECT_USE_FD_SET
-    assert (("libev: fd >= FD_SETSIZE passed to fd_set-based select backend", fd < FD_SETSIZE));
-
     #if EV_SELECT_IS_WINSOCKET
     SOCKET handle = anfds [fd].handle;
     #else
     int handle = fd;
     #endif
 
+    assert (("libev: fd >= FD_SETSIZE passed to fd_set-based select backend", fd < FD_SETSIZE));
+
     /* FD_SET is broken on windows (it adds the fd to a set twice or more,
      * which eventually leads to overflows). Need to call it only on changes.
      */