gcc on 64 bits machine

Hi, Can you please tell me can I use gcc 3.4 to compile a binary on a 64 bits machine? or I need to use gcc 4.1? Thank you.

Performance of gcc 4.1 vs gcc 3.4

Hi, Can you please tell me if there is any performance gain in the output program if i switch from gcc 3.4 to gcc 4.1 on Red hat Enterprise linux 4? Thank you.

Need help in a linking error

Hi, I appreciate if someone can help me with my linking error: In my "c++" options , i already have ' -L/usr/local/lib -lgnet-2.0'. I get a number of '7: undefined reference to `gnet_conn_readline'' errors. Can you please tell me why the linking fails? I have the 'gnet.h' include in my .cpp an