From: David Abrahams (dave_at_[hidden])
Date: 2005-08-04 11:12:11
Vladimir Prus <ghost_at_[hidden]> writes:
> On Thursday 04 August 2005 12:06, Markus Schöpflin wrote:
>> David Abrahams wrote:
>> > Markus Schöpflin <markus.schoepflin_at_[hidden]> writes:
>> >>To my big surprise, I just discovered that defines are somehow not
>> >>propagated to dependencies, when using bbv1.
>> > Right. That's the way free features work.
>> > Feature, not bug ;-)
>> Thought so. But how am I supposed to build a full project where a define is
>> propagated to everything built? If you're asking for a use case: build
>> boost with -DBOOST_DETECT_OUTDATED_WORKAROUNDS.
> Excellent question ;-) Maybe building from top-level will help?
should work. That puts it in the global build request.
> Anyway, maybe we should reconsider our position and propagate <define>
> features to dependencies? After all, if <define> has no effect on
> dependencies, then it's harmless, and if it has some effect on dependency,
> maybe we should be building with the same value anyway.
I'm hesitant at best.
-- Dave Abrahams Boost Consulting www.boost-consulting.com
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