Removing Require_once

The instructions given here:

http://framework.zend.com/manual/en/performance.classloading.html#performance.classloading.striprequires.sed

Don't work in terminal on OSX.   Does anyone have an alternative ?

Is it possible to make a production ready version of the framework available? one with the require_once statements removed. I know there is a bit of a discussion on here about it not mattering quite so much with php5.2+, but even so, it's one of the 1st instructions in the performance  chapter.