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Bug#1102774: rpy2: FTBFS: /usr/bin/ld: cannot find -lzstd: No such file

From Santiago Vila@21:1/5 to All on Sat Apr 12 23:10:02 2025

Hi. Thanks for fixing this so quickly!

There is a little detail which I missed:

Could it be the case that the right fix would be
to add a binary dependency on libzstd-dev to
one of the current build-dependencies?

(Just to be sure).

Thanks.

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From Dirk Eddelbuettel@21:1/5 to Santiago Vila on Sat Apr 12 23:30:02 2025

On 12 April 2025 at 23:00, Santiago Vila wrote:
| Hi. Thanks for fixing this so quickly!
|
| There is a little detail which I missed:
|
| Could it be the case that the right fix would be
| to add a binary dependency on libzstd-dev to
| one of the current build-dependencies?

That is what I did.

The open question I myself have is whether R (now at 4.5.0) brought in zstd
use (I think it can be use internally where available) or whether Python brought it in. I think it may be Python.

But yes I also think about possibly adding it to r-base-dev, a (near-)virtual package ensuring an R environment.

Thoughts?

Dirk

--
dirk.eddelbuettel.com | @eddelbuettel | edd@debian.org

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From Johannes Ranke@21:1/5 to All on Sun Apr 13 02:20:01 2025

This is a multi-part message in MIME format.

For what it's worth, I needed to add libzstd-dev to the build dependencies of littler while backporting it to Debian bookworm (not for bullseye). Sorry, I have no deeper insight but that is what I experienced.

Could it be related to this R 4.5.0 NEWS entry:

- There is some support for zstd compression of tarballs in tar() and untar(). (This depends on OS support of libzstd or by tar.)

Cheers,

Johannes

Am Samstag, 12. April 2025, 23:26:51 CEST schrieb Santiago Vila:

| Could it be the case that the right fix would be
| to add a binary dependency on libzstd-dev to
| one of the current build-dependencies?

That is what I did.

Oops, didn't notice. Sorry. Nevermind, then.

The open question I myself have is whether R (now at 4.5.0) brought in
zstd
use (I think it can be use internally where available) or whether Python brought it in. I think it may be Python.

But yes I also think about possibly adding it to r-base-dev, a (near-)virtual package ensuring an R environment.

Thoughts?

(Nothing to say on my side. Hope other R people who really know the stack
can answer).

Thanks a lot.

<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
</head>
<body>For what it's worth, I needed to add libzstd-dev to the build dependencies of littler while backporting it to Debian bookworm (not for bullseye). Sorry, I have no deeper insight
but that is what I experienced. 
 Could it be related to this R 4.5.0 NEWS entry:
 - There is some support for zstd compression of tarballs in tar() and untar(). (This depends on OS support of libzstd or by
tar.) 
 Cheers,
 Johannes
 Am Samstag, 12. April 2025, 23:26:51 CEST schrieb Santiago Vila:
> > | Could it be the case that the right fix would be
> > | to add a binary dependency on libzstd-dev to
> > | one of the current build-dependencies?
> > 
> > That is what I did.
> > Oops, didn't notice. Sorry. Nevermind, then.
> > > The open question I myself have is whether R (now at 4.5.0) brought in
> > zstd
> > use (I think it can be use internally where available) or whether Python
> > brought it in.  I think it may be Python.
> > 
> > But yes I also think about possibly adding it to r-base-dev, a
> > (near-)virtual package ensuring an R environment.
> > 
> > Thoughts?
> > (Nothing to say on my side. Hope other R people who really know the stack
> can answer).
> > Thanks a lot.
 </body>
</html>

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Bug#1102774: rpy2: FTBFS: /usr/bin/ld: cannot find -lzstd: No such file

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