wiki.chpc.ac.za

sudo su
cd /data/scratch

Download the sources required from the following FTP servers:
GMP: http://ftp.gnu.org/gnu/gmp/
MPFR: http://ftp.gnu.org/gnu/mpfr/
MPC: http://ftp.gnu.org/gnu/mpc/
GCC: http://ftp.gnu.org/gnu/gcc/

Install repo dependencies:

yum install glibc-devel.i686 glibc glibc-devel glibc-static

Compile dependencies:

tar -xf gmp-x.x.x.tar.gz
cd gmp-x.x.x
./configure --prefix=/opt/gmp-x.x.x 
make -j4
make install

cd ..
tar -xf mfpr-x.x.x.tar.gz
cd mfpr-x.x.x
./configure --prefix=/opt/mfpr-x.x.x --with-gmp=/opt/gmp-x.x.x
make -j4
make install

cd .. 
tar -xf mpc-x.x.x.tar.gz
cd mpc-x.x.x
./configure --prefix=/opt/mpc-x.x.x --with-gmp=/opt/gmp-x.x.x --with-mpfr=/opt/mpfr-x.x.x
make -j4
make install

Compile GCC:

export LD_LIBRARY_PATH=/opt/gmp-x.x.x:/opt/mfpr-x.x.x:/opt/mpc-x.x.x:$LD_LIBRARY_PATH

cd ..
tar -xf gcc-x.x.x.tar.gz
cd gcc-x.x.x
./configure --prefix=/opt/gcc-x.x.x --with-gmp=/opt/gmp-x.x.x --with-mpfr=/opt/mpfr-x.x.x --with-mpc=/opt/mpc-x.x.x
make -j16
make install