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From: Thomas Petazzoni via buildroot <buildroot@buildroot.org>
To: Ryan Smith <ryan.smith@density.io>
Cc: buildroot@buildroot.org
Subject: Re: [Buildroot] Embedding Python Interpreter with pybind11
Date: Wed, 23 Aug 2023 23:18:39 +0200	[thread overview]
Message-ID: <20230823231839.0494433f@windsurf> (raw)
In-Reply-To: <CAM7Wg-VCtAdw276BDujEX+7g2v793st6d+m00-6qLHcRz-opQw@mail.gmail.com>

Hello Ryan,

On Tue, 22 Aug 2023 22:26:10 -0600
Ryan Smith <ryan.smith@density.io> wrote:

> I am attempting to write a program that embeds the Python interpreter
> in C++ code using pybind11. When I attempt to compile the package in
> Buildroot, I get the following error message.
> 
> /src/output-internal/host/include/python3.11/pyport.h:601:2: error:
> #error "LONG_BIT definition appears wrong for platform (bad gcc/glibc
> config?)."
>  #error "LONG_BIT definition appears wrong for platform (bad gcc/glibc
> config?)."
>   ^~~~~
> In file included from
> /src/output-internal/host/include/python3.11/Python.h:38:0,
>                  from

                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

This is the problem: it's including the host python headers while
building code for the target. That's why it says "LONG_BIT definition
appears wrong for platform".

This is typically addressed by passing the right sysconfigdata, using
the _PYTHON_SYSCONFIGDATA_NAME variable. This is done automatically by
our python-package infrastructure.

Do you have a reproducer for this issue? People on this mailing list
are more likely to provide some help/support if they can reproduce the
issue.

Best regards,

Thomas
-- 
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering and training
https://bootlin.com
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      reply	other threads:[~2023-08-23 21:18 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-23  4:26 [Buildroot] Embedding Python Interpreter with pybind11 Ryan Smith
2023-08-23 21:18 ` Thomas Petazzoni via buildroot [this message]

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