8000 gh-85283: Build fcntl extension with the limited C API (#116791) · python/cpython@97b80af · GitHub
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gh-85283: Build fcntl extension with the limited C API (#116791)
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‎Doc/whatsnew/3.13.rst

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* Building CPython now requires a compiler with support for the C11 atomic
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library, GCC built-in atomic functions, or MSVC interlocked intrinsics.
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* The ``errno``, ``md5``, ``resource``, ``winsound``, ``_ctypes_test``,
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``_multiprocessing.posixshmem``, ``_scproxy``, ``_stat``,
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* The ``errno``, ``fcntl``, ``grp``, ``md5``, ``resource``, ``winsound``,
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``_ctypes_test``, ``_multiprocessing.posixshmem``, ``_scproxy``, ``_stat``,
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``_testimportmultiple`` and ``_uuid`` C extensions are now built with the
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:ref:`limited C API <limited-c-api>`.
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(Contributed by Victor Stinner in :gh:`85283`.)

‎Misc/NEWS.d/next/C API/2024-03-14-10-33-58.gh-issue-85283.LOgmdU.rst

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The ``fcntl`` and ``grp`` C extensions are now built with the :ref:`limited
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C API <limited-c-api>`. (Contributed by Victor Stinner in :gh:`85283`.)

‎Modules/clinic/fcntlmodule.c.h

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‎Modules/fcntlmodule.c

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/* fcntl module */
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#ifndef Py_BUILD_CORE_BUILTIN
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# define Py_BUILD_CORE_MODULE 1
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// Need limited C API version 3.13 for PyLong_AsInt()
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#include "pyconfig.h" // Py_GIL_DISABLED
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#ifndef Py_GIL_DISABLED
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# define Py_LIMITED_API 0x030d0000
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#endif
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#include "Python.h"
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#include <errno.h> // EINTR
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#include <fcntl.h> // fcntl()
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#include <string.h> // memcpy()
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#include <sys/ioctl.h> // ioctl()
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#ifdef HAVE_SYS_FILE_H
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#include <sys/file.h>
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# include <sys/file.h> // flock()
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#endif
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#ifdef HAVE_LINUX_FS_H
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#include <linux/fs.h>
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# include <linux/fs.h>
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#endif
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#include <sys/ioctl.h>
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#include <fcntl.h>
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#ifdef HAVE_STROPTS_H
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#include <stropts.h>
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# include <stropts.h> // I_FLUSHBAND
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#endif
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/*[clinic input]

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