Bug 2247255

Summary: gnofract4d fails to build with Python 3.13: error: implicit declaration of function ‘PyEval_InitThreads’
Product: [Fedora] Fedora Reporter: Karolina Surma <ksurma>
Component: gnofract4dAssignee: Jerry James <loganjerry>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
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Version: rawhideCC: ksurma, loganjerry, mhroncok
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Fixed In Version: gnofract4d-4.3-14.fc40 Doc Type: If docs needed, set a value
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Last Closed: 2023-10-31 15:55:15 UTC Type: Bug
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Description Karolina Surma 2023-10-31 14:54:32 UTC
gnofract4d fails to build with Python 3.13.0a1.

  fract4d/c/fract4dmodule.cpp: In function ‘PyObject* PyInit_fract4dc()’:
  fract4d/c/fract4dmodule.cpp:654:5: error: ‘PyEval_InitThreads’ was not declared in this scope; did you mean ‘PyEval_SaveThread’?
    654 |     PyEval_InitThreads();
        |     ^~~~~~~~~~~~~~~~~~
        |     PyEval_SaveThread

According to https://docs.python.org/3.13/whatsnew/3.13.html:

Remove PyEval_InitThreads() and PyEval_ThreadsInitialized() functions, deprecated in Python 3.9.
Since Python 3.7, Py_Initialize() always creates the GIL:
calling PyEval_InitThreads() did nothing and PyEval_ThreadsInitialized() always returned non-zero.
(Contributed by Victor Stinner in https://github.com/python/cpython/issues/105182.)


https://docs.python.org/3.13/whatsnew/3.13.html

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.13/fedora-rawhide-x86_64/06584424-gnofract4d/

For all our attempts to build gnofract4d with Python 3.13, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.13/package/gnofract4d/

Testing and mass rebuild of packages is happening in copr.
You can follow these instructions to test locally in mock if your package builds with Python 3.13:
https://copr.fedorainfracloud.org/coprs/g/python/python3.13/

Let us know here if you have any questions.

Python 3.13 is planned to be included in Fedora 41.
To make that update smoother, we're building Fedora packages with all pre-releases of Python 3.13.
A build failure prevents us from testing all dependent packages (transitive [Build]Requires),
so if this package is required a lot, it's important for us to get it fixed soon.

We'd appreciate help from the people who know this package best,
but if you don't want to work on this now, let us know so we can try to work around it on our side.

Comment 1 Fedora Update System 2023-10-31 15:52:13 UTC
FEDORA-2023-2f2edf3d4a has been submitted as an update to Fedora 40. https://bodhi.fedoraproject.org/updates/FEDORA-2023-2f2edf3d4a

Comment 2 Fedora Update System 2023-10-31 15:55:15 UTC
FEDORA-2023-2f2edf3d4a has been pushed to the Fedora 40 stable repository.
If problem still persists, please make note of it in this bug report.