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Subject: Re: [Boost-build] [doc] b2 headers
From: Mateusz Loskot (mateusz_at_[hidden])
Date: 2018-04-09 16:59:45

On 9 April 2018 at 18:49, Mateusz Loskot <mateusz_at_[hidden]> wrote:
> On 9 April 2018 at 16:09, Rene Rivera <grafikrobot_at_[hidden]> wrote:
>> On Mon, Apr 9, 2018 at 8:35 AM, Mateusz Loskot <mateusz_at_[hidden]> wrote:
>>> The magic of"b2+headers"
>>> brought this page to my attention:
>>> where, to my surprise, I find one of best intro to the concept
>>> of modular Boost including very helpful explanation of the virtual
>>> /boost directory and role of b2 headers command.
>>> Why this kind of information is presented in docs for somewhat
>>> exotic to Boost (end)users command, I have no idea.
>>> But, as long-time Boost.Build users, I dare to judge this is an
>>> excellent example of why people hate this awesome build system :)
>> "b2 headers" is an entirely Boost C++ Libraries specific construct and other
>> than using b2 has nothing to do with b2 itself.
> Fair.
> The b2doc makes sense
> "
> target
> All tokens that are neither options nor properties specify what
> targets to build.
> "

b2 --toolset=gcc-5

This works as expected, of course, and does it work due to this rule?

   (...) Syntactically, all command line tokens with an equal sign in
them are considered to specify properties.

IOW, equal sign has higher priority, and -- is discarded, so it is a
property, not an option. Correct?

Best regards,

Mateusz Loskot,

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