Re: [boost] Changes in buildable components over time

On Fri, Apr 15, 2022 at 2:29 PM Glen Fernandes wrote:

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Surprisingly, though, it appears that coroutine2 and metaparse started out as buildable components, but then switched to being header-only.

coroutine2 - introduced in 1.59.0 - first buildable in 1.59.0 - last buildable in 1.64.0 - available as of 1.78.0

metaparse - introduced in 1.61.0 - first buildable in 1.61.0 - last buildable in 1.65.1 - available as of 1.78.0

I cross-referenced the release notes, but I didn't see any mention of

On Thu, Apr 7, 2022 at 11:12 AM Tim Haines via Boost wrote: these

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components being made header-only. Is this intended behavior?

Metaparse was always header-only, but prior to 1.66.0 it had a build/Jamfile.v2 which just built examples and tests: build-project ../example ; build-project ../test ;

This isn't best-practices, and so build/Jamfile.v2 was rightly removed.

Ah, I see. For my purposes, I'll just assume it was always header-only then.

Coroutine2 did become header-only in 2017:

https://github.com/boostorg/coroutine2/commit/5b06384117d19b8ce8b52678fe7f62...

This wasn't mentioned in the release notes.

We can probably do a better job of indicating which libraries are header-only and which are not. Maybe the https://www.boost.org/doc/libs/1_79_0/ list is the best place.

That's what I used to scrape part of my data, so I think that would work well.

(The list on https://www.boost.org/doc/libs/1_79_0/more/getting_started/windows.html is out of date too.)

I would happily contribute the data I collected to this effort. It also seems timely as there have been other discussions about updating the website. I'm assuming https://github.com/boostorg/website would be the right place to make this contribution?

Glen