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From: Konstantin M. Litvinenko (gclbb-jamboost_at_[hidden])
Date: 2003-05-27 04:04:54

Hello, Vladimir!
You wrote on Tue, 27 May 2003 11:47:36 +0400:

VP> Yes. The problem is rather simple. If you have

Maybe so, maybe not :)

VP> <library>@/boost/date_time/boost_date_time

VP> in usage requirements of "foo" then usage requirements of date_time
VP> will be applied only to targets that use "foo". The "foo" target
VP> will be built as usual. To achieve the effect you want, it's
VP> necessary to and

VP> <dependency>@/boost/date_time/boost_date_time

VP> to *requirements* section as well. That would signify that your
VP> library uses date_time library and usage requirement will be
VP> propagated.

All that you saying works as expect but .... What if I have three
targets lib tmp, lib foo, exe bar.
lib foo depends on lib tmp, and exe bar depends lib foo. If I add


to lib tmp, than lib foo will build with boost/date_time defines. But
when I add to lib foo either <dependency> or <library> on lib tmp, lib foo
builds without boost/date_time defines. I don't want to add
<dependency>@/boost/date_time to lib foo explicitly. What am I doing wrong

VP> I've wrote a document which describe all this some time ago, but it
VP> never ended in docs :-(

I have found nothing about <dependency> in boost_build_v2.html form
cvs. Did I miss something?

With best regards, Konstantin M. Litvinenko aka Dark Angel. E-mail:


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