script for building gcc on kwyjibo

Not the actual steps that we used, but pretty much.
#!/bin/sh
# script to install gcc 
 
set -x
export NEW_GCC_PREFIX=/share/apps/opt/gcc-4.5
export LD_LIBRARY_PATH=$NEW_GCC_PREFIX/lib
 
if ! test -f gmp-5.0.1.tar.bz2 
then
    wget ftp://ftp.gmplib.org/pub/gmp-5.0.1/gmp-5.0.1.tar.bz2  || exit
fi
tar xfvj gmp-5.0.1.tar.bz2  || exit
cd gmp-5.0.1  || exit
make || exit
sudo make install  || exit
cd ..  || exit
 
 
if ! test -f mpfr-3.0.0.tar.bz2 
then
    wget http://www.mpfr.org/mpfr-current/mpfr-3.0.0.tar.bz2  || exit
fi
tar xfvj mpfr-3.0.0.tar.bz2  || exit
cd mpfr-3.0.X  || exit
./configure --with-gmp=$NEW_GCC_PREFIX --prefix=$NEW_GCC_PREFIX  || exit
make  || exit
make check  || exit
sudo make install  || exit
cd ..  || exit
 
 
if ! test -f mpc-0.8.2.tar.gz 
then
    wget http://www.multiprecision.org/mpc/download/mpc-0.8.2.tar.gz  || exit
fi
tar fxvz mpc-0.8.2.tar.gz  || exit
cd mpc-0.8.2  || exit
./configure --with-gmp=$NEW_GCC_PREFIX --with-mpfr=$NEW_GCC_PREFIX --prefix=$NEW_GCC_PREFIX  || exit
make  || exit
make check  || exit
sudo make install  || exit
cd ..  || exit
 
 
if ! test -f gcc-4.5.0.tar.bz2 
then
    wget http://mirror.anl.gov/pub/gnu/gcc/gcc-4.5.0/gcc-4.5.0.tar.bz2  || exit
fi
tar xfvj gcc-4.5.0.tar.bz2 || exit 
cd gcc-4.5.0  || exit
./configure --with-gmp=$NEW_GCC_PREFIX --with-mpfr=$NEW_GCC_PREFIX --with-mpc=$NEW_GCC_PREFIX --prefix=$NEW_GCC_PREFIX || exit
make -j6 || exit
sudo make install