centos 7安装gcc 8.2

Posted 2021-01-20

#!/bin/bash
yum -y install bzip2 gcc gcc-c++ glibc-headers
wget -c -P /opt/tmp/ wget https://mirrors.tuna.tsinghua.edu.cn/gnu/gcc/gcc-8.2.0/gcc-8.2.0.tar.gz
tar zxvf gcc-8.2.0.tar.gz
cd gcc-8.2.0
./contrib/download_prerequisites #下载gmp mpfr mpc
cd ../
mkdir build-gcc-8.2 #不能在source目录下configure必须在上一层的目录下
cd build-gcc-8.2
../configure --prefix=/usr/local/gcc --enable-bootstrap --enable-checking=release --enable-languages=c,c++ --disable-multilib
make
make install
#配置环境变量
gcc -v #查看当前gcc版本
echo -e ‘ export PATH=/usr/local/gcc/bin:$PATH ‘ >> /etc/profile.d/gcc.sh && source /etc/profile.d/gcc.sh
#导出头文件
ln -sv /usr/local/gcc/include/ /usr/include/gcc
#导出库文件
vim /etc/ld.so.conf.d/gcc.conf
/usr/local/gcc/lib64 #64位系统
ldconfig -v #配置生效
ldconfig -p |grep gcc #导出验证