Description:
------------
I like this newt library, although its not documented and no one appears to use 
it. Would like to use it. But then again, I'd like a lot of things. 

Test script:
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<?php
newt_init ();
newt_cls ();

$rows = 70;
$cols = 25;

newt_open_window ($rows/2-17, $cols/2-10, 34, 17, "Don't be a Tool");

$form = newt_form ();


//CHECK BOX TREE
$checkbox = newt_checkbox_tree(3, 2, 20,NEWT_CHECKBOXTREE_EXPANDED);
$arr = array(
        "Authentication configuration",
        "Firewall configuration",
        "Mouse configuration",
        "Network configuration",
        "Printer configuration",
        "System services");

foreach($arr as $key=>$l_item);
{
    newt_checkbox_tree_add_item($checkbox, $l_item,'',NEWT_CHECKBOXTREE_UNSELECTED,$key);
}
exit;


newt_form_add_component ($form, $checkbox);
newt_refresh ();

$b1 = newt_button (5, 12, "Run Tool");
$b2 = newt_button (21, 12, "Quit");

newt_form_add_components ($form, array($b1, $b2));

newt_refresh ();
newt_run_form ($form);

newt_pop_window ();
newt_pop_help_line ();
newt_finished ();

newt_form_destroy ($form);

Expected result:
----------------
Expect script to render checkbox_tree via continuing with the following code:

Actual result:
--------------
Throws a segmentation fault prior to exit.