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Subject: Re: [boost] [build] Tests automatically create header links, but library builds do not
From: Peter Dimov (lists_at_[hidden])
Date: 2015-01-03 19:58:03

Andrey Semashev wrote:
> On Saturday 03 January 2015 19:00:30 Peter Dimov wrote:
> > If I remove my boost/ directory, and attempt to build, for example,
> > atomic, by going into libs/atomic/build and invoking b2, it fails due to
> > a missing header:
> >
> > Why is that?
> That's because Boost.Build is unable to parse #includes made with
> preprocessor macros. The TypeTraits headers are included from the
> implementation headers in Atomic, which in turn are included through a
> macro. Boost.Build does not find those implementation headers and hence do
> not make TypeTraits a dependency.

Yes, you're right, I picked 'atomic' at random, and it turned out to be
exactly the wrong choice for this kind of test. Building 'system', for
example, works. :-)

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