Re: [jamboost] Generators example

From: David Abrahams (dave_at_[hidden])
Date: 2002-09-10 07:27:42

From: "Vladimir Prus" <ghost_at_[hidden]>

> David Abrahams wrote:
> > From: "Vladimir Prus" <ghost_at_[hidden]>
> >
> >>You should cd to tools/build/tests/generators-test and say "bjam"
there.
> >
> >
> > Wow! It sure does something (see enclosed). But on my cygwin system it
> > hangs after that.
> > It appears to be putting something bogus in c.cpp (also enclosed).
>
> I don't see c.cpp attached.

Sorry. Here it is.

> The bogosity may be causes by the difference
> in echo behaviour, I guess.
>

> >>You can also give a different build request,
> >>for example "bjam release".
> >
> >
> > Nifty! Seems really fast, too. I wonder how it would do with lots of
> > targets (c.f. status/Jamfile)?
>
> I will be really slow. The reason is simple: the transformation sequence
> will be computed again and again, and that's slow. However, it's also
> simple to cache results -- say, you'll convert WD to CPP once and will
> be chaning only file names after that.

Cool!

Wow, I just started looking at project-root.jam. This is really ** COOL **,
Vladimir!!
I'll have to spend some time today analyzing the output and comparing it to
what you've got here in project-root.jam.

Should we move the generator registrations for things like gcc.link into
the corresponding modules?

-----------------------------------------------------------
David Abrahams * Boost Consulting
dave_at_[hidden] * http://www.boost-consulting.com

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