在centos编译gcc4.7

sudo yum install glibc-static libstdc++-static

wget http://ftp.gnu.org/gnu/gcc/gcc-4.7.0/gcc-4.7.0.tar.gz 

tar xvf gcc-4.7.0.tar.gz  

cd gcc-4.7.0  

./contrib/download_prerequisites  

cd ..  

mkdir build_gcc4.7

cd build_gcc4.7

../gcc-4.7.0/configure --enable-checking=release --enable-languages=c,c++ --disable-multilib

make -j4

sudo make install