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Subject: Re: [boost] [type_traits] Rewrite and dependency free version
From: John Maddock (jz.maddock_at_[hidden])
Date: 2015-02-01 08:39:08

>> Note that we need some kind of markup facility to deal with optional
>> dependencies anyway - to avoid the "everything depends on Serialization"
>> issue.
> Circular dependencies won't work well with clang/c++17 'modules'. Strongly
> connected components form what I called 'incidental modules' in previous
> emails.
> Find a way to convince Robert to allow splitting serialization.

That doesn't solve the issue I was referring to: namely library X
depends on Y *only* if you're using Y anyway. Serialization being a
prime example: many libraries "apparently" depend on it, but the
dependency is only a true one if you're using serialization anyway.

Such interoperability should be positively encouraged, but I fear
package management may actively discourage it unless we make the
packaging smarter.


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