Re: [Boost-build] Why to repeat library dependency ?

Subject: Re: [Boost-build] Why to repeat library dependency ?
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2015-03-28 12:01:53

AMDG

On 03/28/2015 05:12 AM, Christophe B wrote:
>
> I am using boost.build for my projects (currently, gcc-4.8 under ubuntu)
>
> According to the documentation
> (http://www.boost.org/build/doc/html/bbv2/tutorial/linkage.html), it is
> not necessary to repeat library dependency at higher level to allow
> linkage. If A depends on B and B depends on C, it is not required to
> mention the dependency of A to C.
>

That's not exactly what the documentation says.
You still need the dependency when A depends
on C directly.

> #Very simplified dependency scheme for clarity
> unit-test A : B ;
> lib B : C ;
>
> Unfortunately, I do not observer this behaviour and I get a linker error
> claiming that symbols from C are missing.
> Explicitly adding a dependency to C on A solved my issue:
>
> unit-test A : B C ;
> lib B : C ;
>
> This seems to contradict the documentation.
> Can it be any reason for requiring to repeat a dependency on higher level ?
>

In Christ,
Steven Watanabe