centos6.5编译安装gcc 4.8.1

个人学习笔记，谢绝转载！！！

原文：https://www.cnblogs.com/wshenjin/p/14523992.html

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# wget http://ftp.tsukuba.wide.ad.jp/software/gcc/releases/gcc-4.8.1/gcc-4.8.1.tar.bz2

# tar xf gcc-4.8.1.tar.bz2

# ./contrib/download_prerequisites

# cd gcc-4.8.1

# mkdir gcc-build

# cd gcc-build/

# ../configure -enable-checking=release -enable-languages=c,c++ -disable-multilib --prefix=/usr/local/gcc-4.8.1

# make -j8 
# make install 

# ln -sv /usr/local/gcc-4.8.1/bin/* /usr/local/bin/

# export CC=/usr/local/bin/gcc
# export CXX=/usr/local/bin/g++
# export LD_LIBRARY_PATH=/usr/local/gcc-4.8.1/lib/:$LD_LIBRARY_PATH

# mkdir -p /usr/lib64/gcc-4.8.1/
# ln -sv /usr/local/gcc-4.8.1/lib64/libstdc++.so.6.0.18 /usr/lib64/gcc-4.8.1/libstdc++.so.6
# ln -sv /usr/local/gcc-4.8.1/lib64/libstdc++.so.6.0.18 /usr/lib64/gcc-4.8.1/libstdc++.so
# cat > /etc/ld.so.conf.d/gcc-4.8.1.conf << EOF
/usr/lib64/gcc-4.8.1/
EOF

# ldconfg