phpize:Cannot find autoconf
为php编译xcache模块的时候，需要运行phpize
得到了一个错误#/usr/local/php/bin/phpize
Configuring for:
PHP Api Version: 20041225
Zend Module Api No: 20060613
Zend Extension Api No: 220060519
Cannot find autoconf. Please check your autoconf installation and the $PHP_AUTOCONF
environment variable is set correctly and then rerun this script.
通过安装 autoconf 可以解决
centos下执行 yum install autoconf即可
debian下执行 apt-get install autoconf即可