Re: [boost] Boost CMake update

Subject: Re: [boost] Boost CMake update
From: Robert Ramey (ramey_at_[hidden])
Date: 2017-10-04 20:49:35

On 10/4/17 10:36 AM, Stefan Seefeld via Boost wrote:
> On 04.10.2017 13:22, Rene Rivera via Boost wrote:
>>
>>> For one, I didn't mean to re-open a discussion about separating release
>>> cycles. I merely wanted to point out a limitation in the existing
>>> Boost.Build logic, and how I hope that any future build system will
>>> support stand-alone builds, so further modularization can at least be
>>> considered and experimented with.
>>>
>> Not entirely sure what you are referring to... But B2 doesn't have such a
>> limitation. So perhaps I missed something something.
> 
> Perhaps b2 the tool doesn't have such a limitation, but b2 the boost
> build infrastructure does, given that it's impossible to build library
> Boost.X stand-alone, i.e. without starting from the superproject repo.

Hmmm - I'm not seeing this.  I always build all my tests from the 
serialization/test directory.  This also automagically builds all the 
precursor libraries like boost/system etc.  So the current setup gives 
me what I expect and desire in this regard.

> I'm pretty sure that could be fixed quickly for someone with the
> required knowledge, but right now that's not a supported workflow.
> Anyhow, I'm sorry this went off a tangent. My original point was to
> suggest that CMake (or any other future Boost build system) should
> support modular builds, rather than expect Boost.X and Boost.Y always
> have the same version, or be part of the same source tree.

Correct.  We have several intertwined issues:

a) Build/test of boost libaries
b) Posting of test results
c) Dependencies
d) Deployment
e) import of boost libraries (modules) by users

Which bring up other issues such as per library versioning, b2 headers 
and the like.

It's going to be pretty tough to keep this discussion from getting too 
confusing.

Robert Ramey

> 
> 
> Stefan
>