编译安装gcc4.9与g++4.9
Published on 2015 - 12 - 29
安装编译器,版本不限
yum install gcc gcc-c++
下载包
wget http://ftp.gnu.org/gnu/gcc/gcc-4.9.3/gcc-4.9.3.tar.gz
tar -zxvf gcc-4.9.3.tar.gz
自动安装依赖包
cd gcc-4.9.3/contrib
./download_prerequisites
编译
./configure --prefix=/usr/local/gcc49 --enable-checking=release --enable-languages=c,c++ --disable-multilib
make -j4
make install
替换编译器
cd /usr/local/gcc49/bin
mv /usr/bin/gcc /usr/bin/gcc44
mv /usr/bin/g++ /usr/bin/g++44
ln -s /usr/local/gcc49/bin/gcc /usr/bin/gcc
ln -s /usr/local/gcc49/bin/g++ /usr/bin/g++
查看版本
gcc -v
g++ -v