From: Vladimir Prus (ghost_at_[hidden])
Date: 2006-04-27 01:47:17
On Wednesday 26 April 2006 20:44, Reece Dunn wrote:
> Looking forward, I don't think that BBv2 in its current incarnation has
> the right support for pre-compiled headers. I think that PCH support
> should be at a lower level - actually built into the core functionality.
What kind of "core" support for PCH files do you think is necessary?
> There are also several things that I would like to see BBv2 or BBv3
> support. With compilers, you can get them to generate preprocessed
> output and generate the assembly instead of object code. This is not
> currently supported in BBv2. The chain would look something like:
> CPP -> PreProcessed-CPP -> ASM -> OBJ
I think that supporting this would be a matter of adding new features and
adjusting CPP->OBJ generator for compilers that support this model.
> Also, it is not possible to support different build models (e.g. Java/C#
> compile everything in one pass)
Yes, we basically did not have anobydy work on Java/C# so even requirements
are not written down.
> or support orthogonal toolsets. What
> I mean by orthogonal toolsets is performing a build that uses msvc for
> C++ compilation and WiX for MSI/Installer generation.
And what is wrong with that?
> My current thinking is to work out what is needed by all of these and
> how to make them fit into the BBv2 view of the world, but rework
> BB (for bbpy?) to add direct support *from the ground up* rather
> than providing a hack that uses several kludges to get these working
> (like is currently done with PCH).
It's perfectly reasonable to adjust architecture to better support things like
PCH. But without specific suggestions there's not much we can discuss ;-)
> This will be easier to do in Python
> where we are not restricted by the action/rule model from Jam
I think that the action/rule model from Jam is the least problematic part. Can
you say that exactly is wrong with that?
> have a richer *native* set of types.
That's one reason of the Python port, anyway.
-- Vladimir Prus http://vladimir_prus.blogspot.com Boost.Build V2: http://boost.org/boost-build2
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