CentOS 7.9安装GCC 7.3.0

编译工具准备

yum -y install gccyum -y install gcc-c++yum -y install bzip2 zlib-devel

下载gcc源码包

wget http://ftp.mirrorservice.org/sites/sourceware.org/pub/gcc/releases/gcc-7.3.0/gcc-7.3.0.tar.gz

解压源码包下载以赖包

tar zxf gcc-7.3.0.tar.gzcd gcc-7.3.0./contrib/download_prerequisites

创建安装目录

mkdir /usr/local/gcc-7.3.0

源码编译

mkdir build && cd build 
../configure --prefix=/usr/local/gcc-7.3.0/ --enable-checking=release --enable-languages=c,c++ --disable-multilib
make -j4 && make install

添加环境变量

# 添加环境变量
echo 'export LD_LIBRARY_PATH=/usr/local/gcc-7.3.0/lib:$LD_LIBRARY_PATH' >> /etc/profile
echo 'export PATH=/usr/local/gcc-7.3.0/bin:$PATH' >> /etc/profile# 更新profile文件使之立即生效
source /etc/profile