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Subject: Re: [boost] proposal - modularize Boost build system
From: Peter Dimov (lists_at_[hidden])
Date: 2017-06-19 14:32:00

Stefan Seefeld wrote:

> Packaging and releasing are orthogonal concepts.

Not really. Releasing separately from Boost means that you now have two
Boost versions to communicate: the version of Boost.Python, and the version
of the preinstalled Boost against which it was built (I built, f.ex.
libboost-python-1.65.0-1.53.0 in my CentOS 7 case.)

This consequently affects your downstream dependencies, which also have to
include these two versions, in addition to their own. So when a library X
depends on Boost.Python and it's compiled against Boost.Python
1.65.0-1.53.0, its version would now be X-1.17-1.65.0-1.53.0. This is not
compatible with Y-2.1-1.63.0-1.53.0, even though both are built in the same
CentOS 7 environment.

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