On Tue, May 18, 2010 at 14:43, packet <fasteliteprogrammer@xxxxxxxxx> wrote: > How do i build gcc 4.5 on ubuntu 9.10? > Please visit http://gcc.gnu.org/ You will find links on the right hand side taking you to detailed instructions on downloading and building GCC. Quick instructions for a native build (assuming you have downloaded 4.5 into the directory ~/gcc45): $ cd $HOME/gcc45 $ mkdir bld && cd bld $ ../gcc/configure --prefix=$HOME/gcc45/inst && make all install The gcc binaries will be available at $HOME/gcc45/inst/bin Diego.