I can not reproduce your problem. Here is my test program: #include #include #include #include I do: /opt/freeware/bin/gcc -c t.c and get no errors. You may have some defines set that I do not like _KERNEL. Oh shoot. I'm running 5.3. Doesn't seem like that would affect this problem. Can you pull out the line that it is complaining about and post it? Thanks, Perry -- View this message in context: http://www.nabble.com/ggc-3.3.2-on-aix-5.2-long-long-type--t890410.html#a2308609 Sent from the gcc - Help forum at Nabble.com.