[webkit-dev] How to build a webkit release build

[Meryl Silverburgh]

I read the instructions here in building Webkit trunk build.

http://webkit.org/building/build.html

But when I check out the 'release' build, it only has 4 subdirectories
(different from the trunk project directories) and
it does not have 'WebKit/WebKitTools/Scripts/build-webkit'

http://trac.webkit.org/browser/releases/Apple/Safari%204%20Public%20Beta
http://trac.webkit.org/browser/trunk

So my question is how can I build Webkit's release build?

Thank you.