Pear Pecl Install phpize Not Found Problem

If you are trying to install with pecl and hit with the errors below.

running: phpize
sh: phpize: command not found
ERROR: `phpize' failed

just do the upgrade

pear upgrade PEAR
pear upgrade-all

This for my Centos 5.2 with PHP 5.1.6

--- Part 2

I'm still hit with the same problem. Look like I need to install php-pear-devel and make package to resolved this issue.