32bit 编译方法
1. Check installed rpm
a) rpm -qa|egrep “(freetype|xml2|jpeg|png|gd|zlib|mcrypt)”|grep 32bit
i. zlib-32bit-1.2.3-106.34
ii. freetype2-32bit-2.3.7-25.8
iii. libxml2-32bit-2.7.1-10.8
iv. libpng12-0-32bit-1.2.31-5.10
v. zlib-devel-32bit-1.2.3-104.137
vi. libpng-devel-32bit-1.2.31-4.23