1、下载gcc

下载地址：https://gcc.gnu.org

wget "https://ftp.mpi-inf.mpg.de/mirrors/gnu/mirror/gcc.gnu.org/pub/gcc/releases/gcc-12.4.0/gcc-12.4.0.tar.gz"

2、安装gcc

tar -zxf gcc-12.4.0.tar.gz
cd gcc-12.4.0
# 下载依赖包
./contrib/download_prerequisites
./configure --prefix=/usr --enable-checking=release --enable-languages=c,c++ --disable-multilib
make -j4 && make install

3、配置gcc

cp /usr/local/src/gcc-5.4.0/x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs/libstdc++.so.6.0.21 /usr/lib64
cd /usr/lib64
rm libstdc++.so.6
ln -s libstdc++.so.6.0.21 libstdc++.so.6

4、查看gcc版本号

gcc -v