linux 非管理员源码安装gcc/g++

源码压缩包地址

 tar -zvxf gcc-11.2.0.tar.gz 
cd gcc-11.2.0
./contrib/download_prerequisites
mkdir build
cd build/
../configure --prefix=/home/lihc/tools/gcc-11.2.0-build -enable-checking=release -enable-languages=c,c++ -disable-multilib 
make -j
make install

--prefix后面的参数为你的安装目录，之后把安装路径添加到环境变量中

echo 'export PATH="/home/lihc/tools/gcc-11.2.0-build/bin:$PATH" ' >>~/.bashrc
source ~/.bashrc

检查是否安装完成成功

gcc -v