x86_64编译JPEG遇到Invalid configuration `x86_64-unknown-linux-gnu'

把 /usr/share/libtool/config/config.guess 覆盖到相关软件自带的config.guess   
把 /usr/share/libtool/config/config.sub 覆盖到相关软件自带的config.sub   
./configure --enable-shared --enable-static
但是会遇到没有安装libtool
yum install -y libtool
cp /usr/share/libtool/config/config.guess 
cp /usr/share/libtool/config/config.sub