Re: [boost] [cmake] Pull request announcement

On 2018-09-26 03:18 PM, Rene Rivera wrote:

On Wed, Sep 26, 2018 at 11:26 AM Stefan Seefeld mailto:stefan@seefeld.name> wrote:

Hi Rene,

On 2018-09-26 02:16 PM, Rene Rivera wrote:

...

On Wed, Sep 26, 2018 at 10:28 AM Stefan Seefeld via Boost mailto:boost@lists.boost.org> wrote:

Personally I'd go as far as suggesting that it be a requirement for any new build tool proposal that individual projects be compilable (and installable) individually.

I should mention.. that there's nothing in B2 that prevents that modularity.

I'm not exactly sure what you mean by "prevent", but as far as I know, modular builds (at least the variant as I describe it in my other reply) aren't supported by Boost.Build right now. I'd be more than happy to be proven wrong.

(I know we have gone over exactly this question years ago, when you told me that it could be done with a bit of adjustment to the Boost.Build internal code. Has anything changed since then ?)

They are prevented by the Boost building scripts, i.e. boost-root/jamroot. If Boost was willing to be truly modular it would be a fairly simple matter to make each Boost library it's own B2 project

Fair enough. So reading your original reply in that context: I didn't want to make an argument for moving away from B2, but rather, that while we are considering changes to the build infrastructure, we should make (build) modularity a priority.

Sorry if that sounds like a rant. But I tire of people placing blame at B2's feet.

Sorry if you felt like I was (implicitly) blaming B2. I'm fully aware of my proposal (to support the above use-case) being contentious here, and that the reasons for the lack of support for modularity are (mostly) non-technical. All that being said, even if it would be straight forward for a B2 expert such as yourself to add whatever is missing to support stand-alone builds, right now it's not possible, which was the main reason for me to start adding support for alternatives (first SCons, then Faber) to Boost.Python (and later Boost.GIL). Stefan -- ...ich hab' noch einen Koffer in Berlin...