今天在centos上编译PHP-5.6
cd php-5.6 ./configure --prefix=/usr/local/php5.6/ --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 libxml2-2.7.6-14.el6_5.2.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
编译php-5.6出错，xml2-config not found
原文：http://www.cnblogs.com/xiaoqian1993/p/5925165.html