From: Vladimir Prus (ghost_at_[hidden])
Date: 2005-08-04 03:18:28
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?
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.
-- Vladimir Prus http://vladimir_prus.blogspot.com Boost.Build V2: http://boost.org/boost-build2
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