一、安装依赖
yum install ncurses-devel -y
yum install libaio -y
yum install glibc-devel.i686 glibc-devel -y
yum install gcc gcc-c++ -y
yum install openssl-devel -y
二、安装GCC5.5.0版本
wget http://ftp.gnu.org/gnu/gcc/gcc-5.5.0/gcc-5.5.0.tar.gz
tar -zxvf gcc-5.5.0.tar.gz
cd gcc-5.5.0
./contrib/download_prerequisites #下载mpfr、gmp、mpc、isl等依赖包
mkdir build && cd build
../configure --enable-checking=release --enable-languages=c,c++ --disable-multilib
make && make install
mv /usr/local/lib64/libstdc++.so.6 /usr/local/lib64/libstdc++.so.6_old
ln -s /usr/local/src/gcc-5.5.0/build/x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs/libstdc++.so.6.0.21 /usr/local/lib64/libstdc++.so.6
ln -s /usr/local/src/gcc-5.5.0/build/x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs/libstdc++.so.6.0.21 /lib64/libstdc++.so.6
三、下载安装MySQL8.0源码包