Public SourceMage Discussion List

[Eric Sandall <eric AT sandall.us>]

On 2/27/18 8:18 AM, Treeve Jelbert wrote:
> Major projects such as gnome,xorg and mesa are switching to meson.
> This gives them cleaner build scripts, much faster builds and support
> for multiple operating systems from one set of scripts.
> One major gain when building is that changes to build scripts do not
> require running autoreconf which can be  very tedious.
>
> Some smaller parts of those projects have already abandoned autotools.
> I see that gtk4 has also done so.
>
> As far as SMGL is concerned, this means lots of changes to dependency
> and build flags.
>
> For smaller spells  this is trivial.
> I have been experimenting with meson builds for xserver and mesa.
>
> What I see so far is the old spells have some very complex
> dependencies, many of which are only needed for very obscure features
> or hardware.
> This can result in dependencies which are irrelevant in many cases.
>
>
> At present xserver(1.20) can build multiple servers
> (Xorg,XWayland,XNest,Xvfb,Xephyr,DMX, either singly or in various
> combinations.
> Does anyone actually use anything other than Xorg or XWayland?
> I have not yet tried running this, but may do so soon.
>
>
> Mesa(18.x) is much more complex. It can build some vulkan
> drivers(amd,intel) and recent radeonsi,nouveau and intel drivers. It
> also supports Broadcom vc4/vc5, but these are not usually found on x86
> platforms. This code is evolving rapidly.
>
> I currently get link errors in the final step when using llvm. I asked
> upstream but no solution yet.
>
> For the moment these spells are in a local repo and reference local
> git repos for xserver and mesa sources. They do not use tarballs.
>
> When there are tarballs available for these. I will submit alternative
> spells for xserver and mesa which use meson.

I've only used Xorg in the last few years and it's met my needs. :)

Maybe have a branch with a clean re-write of the mesalib and X.org
spells using Meson (there's a lot of cruft, especially in mesalib, which
may not even be valid anymore). Once it's on-par with common features
(e.g. X.org with OpenGL (EGL, GLES, etc.) and Gallium drivers), replace
what's in master?

-sandalle

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