Re: [Boost-build] boost.build C++ dependency

From: Rene Rivera (grafik.list_at_[hidden])
Date: 2006-05-08 22:17:23

Felipe Magno de Almeida wrote:
> Hello,
> 
> Could anyone give me any insights about how bjam calculates file dependencies?

I'm not sure what aspect of the dependency creation you want to know 
about. At the most basic level it uses a regular expression to search 
through the source files, recursively, and calls the preregistered 
scanner rule with the results.

> I would like to think a little more about using wave for dependency calculation.
> I was thinking about caching too, but it doesnt seem feasible to cache
> preprocessing with third-party preprocessors. Am I right?
> It would be possible using wave or more possibly a tweaked version of
> wave, that would integrate a preprocessing cache database for lookup
> in include'd statements.

I don't think using an "external" dependency generator is the right way 
to go. That is what make does with the usual "makedepend" targets and 
it's just terribly limiting. I hope this is not what you are thinking of.

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