运行phpize时出现：Cannot find autoconf. Please check your autoconf installation

运行/usr/local/webserver/php/bin/phpize时出现：
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. Then, rerun this script.

编译安装缺失包的解决办法：

# cd /usr/src 
# wget http://ftp.gnu.org/gnu/m4/m4-1.4.9.tar.gz 
# tar -zvxf m4-1.4.9.tar.gz 
# cd m4-1.4.9/ 
# ./configure && make && make install 
# cd ../ 
# wget http://ftp.gnu.org/gnu/autoconf/autoconf-2.62.tar.gz 
# tar -zvxf autoconf-2.62.tar.gz 
# cd autoconf-2.62/ 
# ./configure && make && make install 

最简单yum安装缺失包：
yum install m4 
yum install autoconf

两个命令就搞定了