centos installation

1. Preparations

yum install wget
yum install make
yum -y install bzip2
yum install m4
yum install gcc gcc-c++ glibc-static -y //Install the old gcc-related compilation tools

2. Download gcc 4.8.2 source code

wget http://gcc.gnu.org/pub/gcc/releases/gcc-4.8.2/gcc-4.8.2.tar.bz2

3. Unzip the source code package, enter the gcc-4.8.2 directory, and execute the ./contrib/download_prerequisities script to automatically download the three dependent libraries: gmp-4.3.2, mpfr-2.4.2, mpc-0.8.1

4. Install gmp, mpfr, mpc

cd gmp  
mkdir build  
cd build  
../configure --prefix=/usr/local/gcc/gmp-4.3.2  
make && make install

cd ../../mpfr  
mkdir build  
cd build  
../configure --prefix=/usr/local/gcc/mpfr-2.4.2 --with-gmp=/usr/local/gcc/gmp-4.3.2
make && make install  

cd ../../mpc  
mkdir build  
cd build  
../configure --prefix=/usr/local/gcc/mpc-0.8.1 --with-mpfr=/usr/local/gcc/mpfr-2.4.2 --with-gmp=/usr/local/gcc/gmp-4.3.2
make && make install