华中科技大学开源镜像站：http://mirror.hust.edu.cn/gnu/gcc/gcc-9.3.0/gcc-9.3.0.tar.gz
编译安装
下载依赖包：
./contrib/download_prerequisites
编译安装：
mkdir build
cd build
../configure --prefix=/usr/local/gcc-9.3.0/ --enable-checking=release --enable-languages=c,c++ --disable-multilib
make -j4
make install
设置环境变量：
[root@centos build]# touch /etc/profile.d/gcc.sh
[root@centos build]# chmod 777 /etc/profile.d/gcc.sh
[root@centos build]# echo -e '\nexport PATH=/usr/local/gcc-9.3.0/bin:$PATH\n' >> /etc/profile.d/gcc.sh && source /etc/profile.d/gcc.sh
设置头文件：
[root@centos include]# ln -sv /usr/local/gcc-9.3.0/include/ /usr/include/gcc
设置库文件：
[root@centos include]# touch /etc/ld.so.conf.d/gcc.conf
[root@centos include]# chmod 777 /etc/ld.so.conf.d/gcc.conf
echo -e "/usr/local/gcc-9.3.0/lib64" >> /etc/ld.so.conf.d/gcc.conf
加载动态连接库：
ldconfig -v
ldconfig -p |grep gcc
查看结果：
gcc -v
Thread model: posix
gcc version 9.3.0 (GCC)
gmp-6.1.0.tar.bz2: FAILED
sha512sum: WARNING: 1 of 1 computed checksum did NOT match
error: Cannot verify integrity of possibly corrupted file gmp-6.1.0.tar.bz2
缺少： gmp-6.1.0.tar.bz2
下载地址：https://gmplib.org/list-archives/gmp-announce/2015-November/000044.html
[root@localhost build]# node -v
node: /lib64/libc.so.6: version `GLIBC_2.16' not found (required by node)
node: /lib64/libc.so.6: version `GLIBC_2.17' not found (required by node)
node: /lib64/libc.so.6: version `GLIBC_2.14' not found (required by node)
https://centos.pkgs.org/7/centos-x86_64/glibc-2.17-292.el7.x86_64.rpm.html
[root@localhost soft]# rpm -Uvh glibc-2.17-292.el7.x86_64.rpm
warning: glibc-2.17-292.el7.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
error: Failed dependencies:
glibc-common = 2.17-292.el7 is needed by glibc-2.17-292.el7.x86_64
glibc = 2.12-1.132.el6 is needed by (installed) glibc-common-2.12-1.132.el6.x86_64
glibc = 2.12-1.132.el6 is needed by (installed) glibc-headers-2.12-1.132.el6.x86_64
glibc = 2.12-1.132.el6 is needed by (installed) glibc-devel-2.12-1.132.el6.x86_64
以上错误的解决方法
http://mirror.centos.org/centos/7/os/x86_64/Packages/glibc-common-2.17-292.el7.x86_64.rpm
http://mirror.centos.org/centos/6/updates/x86_64/Packages/glibc-common-2.12-1.212.el6_10.3.x86_64.rpm
yum install glibc
http://mirror.centos.org/centos/6/updates/x86_64/Packages/glibc-headers-2.12-1.212.el6_10.3.x86_64.rpm
yum install glibc-headers
http://mirror.centos.org/centos/6/updates/x86_64/Packages/glibc-devel-2.12-1.212.el6_10.3.x86_64.rpm
yum install glibc-devel
