! use smf_setcookie not setcookie

Sources/Subs-Auth.php

@@ -103,7 +103,7 @@ function setLoginCookie($cookie_length, $id, $password = '')
 		if (!isset($_COOKIE[session_name()]) || $_COOKIE[session_name()] != session_id())
 		{
 			$sessionCookieLifetime = ini_get('session.cookie_lifetime');
-			setcookie(session_name(), session_id(), time() + (empty($sessionCookieLifetime) ? $cookie_length : $sessionCookieLifetime), $cookie_url[1], $cookie_url[0], !empty($modSettings['secureCookies']));
+			smf_setcookie(session_name(), session_id(), time() + (empty($sessionCookieLifetime) ? $cookie_length : $sessionCookieLifetime), $cookie_url[1], $cookie_url[0], !empty($modSettings['secureCookies']));
 		}
 
 		$_SESSION['login_' . $cookiename] = $data;