arpit jain writes: > Hiiii, > > I want to build GCC for a 64-bit > architecture(AMD-Opteron, IBM Power5 Series). > > 1.Can anyone suggest from which version GCC supports > 64bit architecture? Ages ago. 3.3, I think. You can find out by looking at http://gcc.gnu.org/releases.html > 2.What all options I need to give during the > configure? What host architecture will you be using? Andrew.