Problem with Tangobos

[bearophile]

Bill Baxter:
> Try changing the rebuild setup to compile all-at-once instead of 
> one-at-a-time.

Please, can you give me a hint regarding how to do this, or a page/doc/URL that explains how to do it? I am not able to find any documentation or any command line option regarding this (and I am not even able to find the rebuilt setup file, maybe I have to create it, but I don't know where to create it).

Bye and sorry being ignorant,
bearophile