cihan wrote: > I have intel core2 duo 64 bit processor and I try to build gcc 2.95.3 on > ubuntu 8.04 but the gcc cant build Well what do you expect? 2.95.3 was released on 2001-03-19 and didn't support x86_64. According to wikipedia the first x86_64 processer wasn't even released until April 2003, and according to the gcc release notes x86_64 support was contributed for 3.1. But I wouldn't recommend using anything older than 3.2 if you must use these archaic versions. Of course if you switch to a 32 bit x86 target then everything should work fine. Brian