Building gcc-3.4.1 on Ubuntu 9.04 64-bits

Download gcc:

http://mirrors.kernel.org/gnu/gcc/gcc-3.4.1/gcc-3.4.1.tar.bz2

Create a source and object directory:

mkdir srcgcc

mkdir objgcc

Extract the source files into the source directory, then go to the object directory to configure your build:

cd objgcc

make distclean; CFLAGS=-m64; CC=gcc; ../srcgcc/gcc-3.4.1/configure --prefix=/opt/gcc-3.4.1/ --disable-multilib --enable-languages=c,c++

In the above command the target directory is /opt/gcc-3.4.1. If you run into permission issues, make sure you own the target directory:

sudo chown gbezerra /opt/gcc-3.4.1

Now compile gcc:

make bootstrap

Finally install it:

sudo make install