10000 gh-85283: Fix _ctypes_test build on Windows in release mode (#111005) · aisk/cpython@4e57922 · GitHub
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pythongh-85283: Fix _ctypes_test build on Windows in release mode (python#111005)
Define Py_BUILD_CORE to not attempt to link the extension to python3.lib (which fails).
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‎Modules/_ctypes/_ctypes_test.c

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// Need limited C API version 3.13 for Py_MOD_PER_INTERPRETER_GIL_SUPPORTED
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#define Py_LIMITED_API 0x030d0000
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// gh-85283: On Windows, Py_LIMITED_API requires Py_BUILD_CORE to not attempt
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// linking the extension to python3.lib (which fails). Py_BUILD_CORE_MODULE is
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// needed to import Python symbols. Then Python.h undefines Py_BUILD_CORE and
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// Py_BUILD_CORE_MODULE if Py_LIMITED_API is defined.
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#define Py_BUILD_CORE
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#define Py_BUILD_CORE_MODULE
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#include <Python.h>
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#include <stdio.h> // printf()

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