Description:
------------
set_time_limit() does not work unter WinXP/Cygwin, Win2k/Cygwin. Verified with 4.3.11, 4.4.0RC1, 5.0.4, 5.1.0b1, 5.1-dev.

It works on the same machine under Linux.

Reproduce code:
---------------
<?php
ini_set('display_errors', 0);    
echo "Start\n";
function boo()
{
	echo "Shutdown\n";
}
register_shutdown_function("boo");
/* not necessary, just to show the error sooner */
set_time_limit(1); 
/* infinite loop to simulate long processing */
for (;;) { }
echo "End\n";
?>


Expected result:
----------------
The script terminates after 1 second

Actual result:
--------------
The script loops until it gets interrupted:

$ date; php 005a.php; date
Mon Jun 20 09:45:11     2005
Content-type: text/html
X-Powered-By: PHP/4.3.11

Start
^C
Mon Jun 20 09:48:18     2005