libtool 版本问题出错后
下载最新版本libtool编译安装后，copy libtool之下的
Install libtool again ，then install jpeg Succeed
#cd libtool
#./configure –prefix=/usr/local/libtool
#make
#make install
#cp /usr/local/libtool/share/libtool/config/config.sub Content jpeg source
#cp /usr/local/libtool/share/libtool/config/config.guess Content jpeg source