Re: [PATCH bpf-next] selftests/bpf: Use pkg-config to determine ld flags

[Akihiko Odaki]

On 2023/10/16 20:39, Daniel Borkmann wrote:
> On 10/15/23 3:39 PM, Akihiko Odaki wrote:
> > When linking statically, libraries may require other dependencies to be
> > included to ld flags. In particular, libelf may require libzstd. Use
> > pkg-config to determine such dependencies.
>
> Is this not covered via -lz or is it that the name differs?

libelf may not only be linked with zlib but also with zstandard.

> Anyway, this change breaks selftest build for BPF CI (see below), could 
> this
> either be made optional or detected differently?
>
> https://github.com/kernel-patches/bpf/actions/runs/6524480596/job/17716170021

I sent v2 (I forgot to add bpf-next to the subject for this).
This version implements a fallback just in the same way done for 
HOSTPKG_CONFIG.