centos6.4编译gcc6.4

#!/bin/bash
dir=$(pwd)
echo $dir

cd $dir
rm -rf gmp-6.1.2.tar.xz gmp-6.1.2
wget https://gmplib.org/download/gmp/gmp-6.1.2.tar.xz
tar xvf gmp-6.1.2.tar.xz
cd gmp-6.1.2
./configure --disable-shared --enable-static --prefix=$dir/extern
make && make install
echo "----------------gmp-6.1.2 over------------------"