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From: Vladimir Prus (vladimir.prus_at_[hidden])
Date: 2019-11-03 12:28:48


On Sun, Nov 3, 2019 at 12:46 PM ERR ORR via Boost-build <
boost-build_at_[hidden]> wrote:

> Hi,
> I am writing for help building V1.71 and additional modules Asio,
> Regex,Xpressive.
> Checking the log output, the build tool appears to not build these
> modules by default.

I think it would be helpful it you provide a detailed issue report. For
example, the guidelines at

are very good.

  - Could someone please explain to me how I build exactly ONE
> additional module, for example Asio?
> - Could somebody please explain to me how I can build the whole
> library, module by module, dependably, to <stage>, if must be,
> and from there to the <INSTALL> destination?

As documented in the getting started document, you can do that with

b2 *--build-type=complete *stage

If you wish to build just one module, you can use the "--with-xxx" option.

> - Could somebody please explain to me why Boost has decided to NOT
> include certain modules in default build process, and how do I circumvent
> this?

To answer you question, it's necessary to work from a complete issue
report, as I suggested above. Some modules might require additional
dependencies, and
are not built unless those dependencies are detected. The decision is
usually made by the module author, and without any output, it's hard to
guess what's
going on.

> Secondly, the build tool appears to not be documented correctly.

Sadly, this is not an actionable issue report either. If you create an
issue explaining what part of what documentation you find incorrect, it
might get fixed.

Vladimir Prus

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