Hi, I'm sorry, but as this is only a general contact address, I cannot properly answer technical questions such as yours. The best I can do is refer you to the GCC Manual (http://gcc.gnu.org/onlinedocs/) and Frequently Asked Questions (http://gcc.gnu.org/faq.html). If neither of those provide an answer to your question, please contact the GCC users' help list; you can learn more about it at <http://gcc.gnu.org/lists.html>. I am sorry that I couldn't be of more help -- Stephen Huenneke Program Assistant Free Software Foundation 51 Franklin St. Fifth Floor Boston, MA 02110