Re: zstd headers?

[Simon Burge <simonb%NetBSD.org@localhost>]

Hi Tobias,

Tobias Nygren wrote:

> So this started with me wanting to add zstd support to pkg_create -F to
> evaluate if that could enhance pkg_add performance in bulk builds.
>
> like with xz, we only reasonably want to enable zstd in pkgsrc's
> pkg_install if it is an OS builtin. NetBSD ships with the zstd shlib
> but not the headers nor the pkg-config file so applications cannot use
> it and a builtin.mk in pkgsrc would not detect it even if added.
>
> The header is in the comp flist but was marked obsolete.
> I'm not sure of the reason hence opening this thread for discussion.

I asked about this a while ago [1] and got a response off-list that we
don't want to expose the base-system zstd because that could conflict
with pkgsrc zstd, especially if pkgsrc has a newer version.

One suggestion was to put the zstd shared library in /usr/lib/private
where the ssh library is.  Any program wanting to use zstd can then
.include "${NETBSDSRCDIR}/external/bsd/zstd/Makefile.zstd" .

That shouldn't be too hard, but I never got around to looking any
further at this.  If Someone(tm) gets this bit done, I've got patches
for zcat/gzip and libarchive to use zstd ready.  pkg_install then
gets zstd support for "free" via libarchive.

Cheers,
Simon.
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[1] https://mail-index.netbsd.org/tech-userlevel/2026/01/14/msg014886.html