今天在centos上编译PHP-5.6
cd php-5.6
./configure --prefix=/usr/local/php5./ --with-apxs2=/usr/local/apache.2.2/bin/ apxs
返回错误：
checking libxml2 install dir... no
checking for xml2-config path...
configure: error: xml2-config not found. Please check your libxml2 installation.
说是libxml2没装，但是用yum安装时发现已经安装了
[root@localhost process]# yum install libxml2
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Setting up Install Process
Package libxml2-2.7.-.el6_5..i686 already installed and latest version
Nothing to do
查资料后发现原来还需要安装libxml2-devel，再次执行安装命令
yum install libxml2* -y