zlib动态库升级

 1.报错

/lib64/libz.so.1: version `ZLIB_1.2.9' not found 

 2.解决方案

升级zlib动态库

 3.解决步骤

1.查看当前动态库版本
strings /lib64/libz.so.1 |grep "ZLIB*"
ZLIB_1.2.0
ZLIB_1.2.0.2
ZLIB_1.2.0.8
ZLIB_1.2.2
ZLIB_1.2.2.3
ZLIB_1.2.2.4
ZLIB_1.2.3.3
ZLIB_1.2.3.4
ZLIB_1.2.3.5
ZLIB_1.2.5.1
ZLIB_1.2.5.2
发现最高版本只有1.2.5，没有1.2.9的。

2.下载对应的zlib包并编译
wget http://www.zlib.net/fossils/zlib-1.2.9.tar.gz  
tar xf zlib-1.2.9.tar.gz
cd zlib-1.2.9/
./configure
make && make install

3.创建新的链接
cp libz.so.1.2.9 /usr/lib64/
cd /usr/lib64/
rm -f libz.so.1
ln -s  libz.so.1.2.9 libz.so.1

4.确认新版本是否存在
strings /lib64/libz.so.1 |grep "ZLIB*"
ZLIB_1.2.0
ZLIB_1.2.0.2
ZLIB_1.2.0.8
ZLIB_1.2.2
ZLIB_1.2.2.3
ZLIB_1.2.2.4
ZLIB_1.2.3.3
ZLIB_1.2.3.4
ZLIB_1.2.3.5
ZLIB_1.2.5.1
ZLIB_1.2.5.2
ZLIB_1.2.7.1
ZLIB_1.2.9
ZLIB_1.2.0
ZLIB_1.2.2
ZLIB_1.2.5.2
ZLIB_1.2.3.5
ZLIB_1.2.3.3
ZLIB_1.2.2.3
ZLIB_1.2.0.8
ZLIB_1.2.7.1
ZLIB_1.2.0.2
ZLIB_1.2.9
ZLIB_1.2.5.1
ZLIB_1.2.3.4
ZLIB_1.2.2.4