编译安装PHP时遇到的问题
问题1：
configure: error: xml2-config not found. Please check your libxml2 installation.
解决办法是:
yum install -y libxml2-devel
问题2：
configure: error: Cannot find OpenSSL's <evp.h>
解决办法是:
yum install -y openssl openssl-devel
问题3：
checking for BZip2 in default path... not found
configure: error: Please reinstall the BZip2 distribution
解决办法:
yum install -y bzip2 bzip2-devel
问题4：
configure: error: png.h not found.
解决办法:
yum install -y libpng libpng-devel
问题5：
configure: error: freetype.h not found.
解决办法:
yum install -y freetype freetype-devel
问题6:
configure: error: mcrypt.h not found. Please reinstall libmcrypt.
解决办法:
rpm -ivh "http://www.lishiming.net/data/attachment/forum/month_1211/epel-release-6-7.noarch.rpm"
yum install -y libmcrypt-devel