Hi, I have GCC V4.1.1 and have looked again at the documents for some information on the "used" attribute but cannot find it anywhere in the type attributes section. Can anyone direct me to its help source? Regards John -- View this message in context: http://www.nabble.com/%22Undefined-reference-to-...%22-Errors-tp23411190p23415160.html Sent from the gcc - Help mailing list archive at Nabble.com.