Re: [Buildroot] [PATCH 1/2] package/libiio: fix python bindings without glibc utils

[Thomas Petazzoni via buildroot <buildroot@buildroot.org>]

Hello Marcus,

On Mon, 22 Dec 2025 18:26:36 +0100
Marcus Hoffmann via buildroot <buildroot@buildroot.org> wrote:

> Libiio python bindings use ctypes and specifically the find_library()
> function from there to load the libiio.so shared library. This is not
> working unless glibc utils (specifically ldconfig) is installed to the
> target (alternatively the target would need gcc or binutils, for objdump
> or ld).
> 
> The easy fix here is to just bypass the find_library() machinery
> altogether as it's not needed on a buildroot system.
> 
> Signed-off-by: Marcus Hoffmann <buildroot@bubu1.eu>
> ---
>  ...-bindings-python-fix-library-loading.patch | 41 +++++++++++++++++++
>  1 file changed, 41 insertions(+)
>  create mode 100644 package/libiio/0001-bindings-python-fix-library-loading.patch

Thanks, I have applied both patches. However I must admit that for
PATCH 1/2, I would probably have preferred to backport the on-going PR
on cpython, which fixes the problem for all cases, not just libiio.

Reading the discussion on the PR, I think it was improperly presented
as being needed for "musl", and used only for musl. I would suggest to
not present it as something musl-specific, but rather something that
makes the lookup for the C/C++ libraries more portable (and therefore
probably drop using ldconfig entirely). This would have addressed the
concern raised on the PR that this is musl specific, and musl is not a
supported platform, yadayadayada.

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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