How to build?

How can I build grid.js from source?

I have seen this post:
http://www.activewidgets.com/messages/371-4.htm

but not understand how can this script build grid.js source...

I build it by hand, but does'nt work...
Help.

Sorry, the build script is still not ready.

http://www.activewidgets.com/messages/835-1.htm