On 05/24/2012 06:40 PM, Xin Tong wrote: > I am looking for an older version of gcc ( gcc version 3.4.X). I can > not find it in my os software repository. therefore i decide to > download the source and compile it myself. I am looking at this > download link and have a few questions. This is going to be tricky. Older versions of gc generally don't compile with newer versions, and you'll have to do some fixing up. Andrew.