Re: D support, not sure what to do

Russel,

I had to google a bunch of things below.

Basically, if I understand correctly, your question is should SCons support
downloading and building packages (registered or not with some central
repo) for various languages?

Is that the gist?

-Bill

On Fri, Apr 7, 2017 at 1:47 PM, Russel Winder <[email protected]> wrote:

> Hi,
>
> The current D support in SCons is really there to support mixed D and
> C++ software rather than being the best way of handling solely D codes.
> Also SCons focuses on the build case where all the source is in the
> project and all dependencies are available natively on the platform.
>
> Like Rust, and Go, and indeed C++ now with Conan, D has the concept of
> getting packages from a central repository. Rust has Cargo which is a
> package and build manager, no need for SCons. Go has the go command for
> getting Git/Mercurial/Bazaar packages and building things, no need for
> SCons. D has Dub which like Rust's Cargi is a package management and
> build system. Scons is really a C and C++ system (*), with support for
> Fortran and D in polyglot systems. Conan must change the game: SCons
> must support Conan.
>
> In some sense Dub removes the need for SCons with D programming. Yet
> people are using SCons and Meson for building D.
>
> For SCons to remain relevant to D, and there is good reasons to do
> this, it must be able to interwork with Dub to handle getting
> dependencies from the Dub repository. I am currently "fighting" with
> trying to make SCons build D codes with Unit-Threaded test framework
> use. I have to admit I am beginning to wonder why. :-(
>
> Which leads to a second issue. D, like Chapel, is beginning to focus on
> compiling all source at once into a target. None of this compile each
> module/file/… separately and then link. Meson cannot cope with this
> from what I can see, which  make me wonder if this new replacement for
> Autotools has built in obsolescence.
>
> Chapel and D can both be build file/module by file/module, but
> optimisation works best on all source at once mode. The Chapel folk are
> looking at a Cargo style build system, D has Dub. Is it worth pursuing
> this model in SCons, or is it a waste of effort to try?
>
>
>
> (*) And obviously XeLaTex, which is now my main use of SCons.
>
> --
> Russel.
> ============================================================
> =================
> Dr Russel Winder      t: +44 20 7585 2200   voip:
> sip:[email protected]
> 41 Buckmaster Road    m: +44 7770 465 077   xmpp: [email protected]
> London SW11 1EN, UK   w: www.russel.org.uk  skype: russel_winder
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>

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