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Subject: Re: [Boost-build] how to add include directories for compile but not for scan
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2012-04-21 19:49:06


On 04/21/2012 02:57 PM, George Georgiev wrote:
> Hi,
> It took me less than 15 minutes to implement <compile-include> builtin
> feature myself (for the compilers I need) and I am not so familiar
> with Boost Build system.
> I found several discussions about this topic, other people asking for
> this or very similar feature.

Well, you could use cxxflags.

> Is there arguments why this should not be an officially supported
> feature?

It adds extra complexity. In addition
to the implementation it would need
documentation and tests. Every new feature
makes it harder for users to find what
they need.

> The time savings especially for incremental build are
> significant.

Do you have numbers? Also, have you tried
using HDRCACHE? (e.g. bjam -sHDRCACHE=.jamdeps
will cause the results of #include scanning
to be stored in a file called .jamdeps).

> And it looks to me extremely cheap for implementation and
> maintenance.

In Christ,
Steven Watanabe

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