Re: Getting started guide && ./src/configure.sh

On Thu, Nov 6, 2025 at 5:29=E2=80=AFPM dave seddon <[email protected]=
m> wrote:
>
> G'day,
>
> I hope you are doing well
>
> Very exciting to see the Ultra Ethernet protocols being added!
>
> However, I suspect unintended "challenges" were introduced since the
> flake.nix was added.
>
> Upon review, I found that actually xdp2 was no longer working on
> ubuntu without nix.
>
> This pull request:
>
> - Adds a getting started guide ( note - sample compiles challenges persis=
t )
> - Adds an experimental ./src/configure.sh designed as an alternative
> to the existing ./src/configure
> ./src/configure creates a config.mk that works on Ubuntu ( no nix )
> using llvm or llvm20. ( The getting started guide explains that Ubuntu
> package naming makes supporting different llvm versions tricky.
> configure.sh hopefully handles this correctly now. )
> - ./src/configure.sh has extensive --debug_level 7 logging
> - ./src/configure.sh modifies the test cpp code to support llvm 18 and 20
> - Updates various Makefiles to allow the make variables to be passed,
> so -j$(nproc) works
> - Enforces dependencies, so the builds work with -j$(nproc)
>
> This has been tested with ubuntu24.0.4.3 ( no nix ) using llvm and
> llvm20, but I strongly encourage more testing

Thanks Dave, I'll look at that.

Also, it's clear we're going to need a nightly test suite sooner than later=
.

Tom

>
> Happy to discuss
>
> I'm going to keep working on the flake.nix, because it's broken, and
> this pull request marks the files as such
>
> https://github.com/xdp2-dev/xdp2/pull/11
>
> --
> Regards,
> Dave Seddon
> +1 415 857 5102
>