https://github.com/python/cpython/commit/7686c752b308358bccd5e76e8516872e844a1b70
commit: 7686c752b308358bccd5e76e8516872e844a1b70
branch: 3.14
author: Steve Dower <steve.do...@python.org>
committer: zooba <steve.do...@microsoft.com>
date: 2025-05-19T21:24:53+01:00
summary:
[3.14] gh-133779: Revert Windows generation of pyconfig.h and go back to a
static header. (GH-133966)
Extension builders must specify Py_GIL_DISABLED if they want to link to the
free-threaded builds.
This was usually the case already, but this change guarantees it in all
circumstances.
files:
A Misc/NEWS.d/next/Windows/2025-05-13-13-25-27.gh-issue-133779.-YcTBz.rst
A PC/pyconfig.h
D PC/pyconfig.h.in
M Doc/howto/free-threading-extensions.rst
M Doc/whatsnew/3.14.rst
M Include/Python.h
M Lib/sysconfig/__init__.py
M Lib/test/test_sysconfig.py
M PCbuild/_freeze_module.vcxproj
M PCbuild/pyproject.props
M PCbuild/pythoncore.vcxproj
M PCbuild/regen.targets
M Tools/msi/dev/dev_files.wxs
M Tools/peg_generator/pegen/build.py
diff --git a/Doc/howto/free-threading-extensions.rst
b/Doc/howto/free-threading-extensions.rst
index 3f6ee517050bd8..5a3970f15d52d6 100644
--- a/Doc/howto/free-threading-extensions.rst
+++ b/Doc/howto/free-threading-extensions.rst
@@ -23,6 +23,14 @@ You can use it to enable code that only runs under the
free-threaded build::
/* code that only runs in the free-threaded build */
#endif
+.. note::
+
+ On Windows, this macro is not defined automatically, but must be specified
+ to the compiler when building. The :func:`sysconfig.get_config_var` function
+ can be used to determine whether the current running interpreter had the
+ macro defined.
+
+
Module Initialization
=====================
diff --git a/Doc/whatsnew/3.14.rst b/Doc/whatsnew/3.14.rst
index 11361289874c9d..8f39b99e38e3a5 100644
--- a/Doc/whatsnew/3.14.rst
+++ b/Doc/whatsnew/3.14.rst
@@ -829,6 +829,12 @@ Kumar Aditya, Edgar Margffoy, and many others.
Some of these contributors are employed by Meta, which has continued to provide
significant engineering resources to support this project.
+From 3.14, when compiling extension modules for the free-threaded build of
+CPython on Windows, the preprocessor variable ``Py_GIL_DISABLED`` now needs to
+be specified by the build backend, as it will no longer be determined
+automatically by the C compiler. For a running interpreter, the setting that
+was used at compile time can be found using :func:`sysconfig.get_config_var`.
+
.. _whatsnew314-pyrepl-highlighting:
diff --git a/Include/Python.h b/Include/Python.h
index 64be80145890a3..f34d581f0b4c91 100644
--- a/Include/Python.h
+++ b/Include/Python.h
@@ -59,6 +59,14 @@
# include <intrin.h> // __readgsqword()
#endif
+// Suppress known warnings in Python header files.
+#if defined(_MSC_VER)
+// Warning that alignas behaviour has changed. Doesn't affect us, because we
+// never relied on the old behaviour.
+#pragma warning(push)
+#pragma warning(disable: 5274)
+#endif
+
// Include Python header files
#include "pyport.h"
#include "pymacro.h"
@@ -138,4 +146,9 @@
#include "cpython/pyfpe.h"
#include "cpython/tracemalloc.h"
+// Restore warning filter
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
+
#endif /* !Py_PYTHON_H */
diff --git a/Lib/sysconfig/__init__.py b/Lib/sysconfig/__init__.py
index dad715eb087387..f93b98dd681536 100644
--- a/Lib/sysconfig/__init__.py
+++ b/Lib/sysconfig/__init__.py
@@ -468,7 +468,7 @@ def get_config_h_filename():
"""Return the path of pyconfig.h."""
if _PYTHON_BUILD:
if os.name == "nt":
- inc_dir = os.path.dirname(sys._base_executable)
+ inc_dir = os.path.join(_PROJECT_BASE, 'PC')
else:
inc_dir = _PROJECT_BASE
else:
diff --git a/Lib/test/test_sysconfig.py b/Lib/test/test_sysconfig.py
index 53e55383bf9c72..963cf753ce6178 100644
--- a/Lib/test/test_sysconfig.py
+++ b/Lib/test/test_sysconfig.py
@@ -531,13 +531,10 @@ def test_srcdir(self):
Python_h = os.path.join(srcdir, 'Include', 'Python.h')
self.assertTrue(os.path.exists(Python_h), Python_h)
# <srcdir>/PC/pyconfig.h.in always exists even if unused
- pyconfig_h = os.path.join(srcdir, 'PC', 'pyconfig.h.in')
- self.assertTrue(os.path.exists(pyconfig_h), pyconfig_h)
pyconfig_h_in = os.path.join(srcdir, 'pyconfig.h.in')
self.assertTrue(os.path.exists(pyconfig_h_in), pyconfig_h_in)
if os.name == 'nt':
- # <executable dir>/pyconfig.h exists on Windows in a build tree
- pyconfig_h = os.path.join(sys.executable, '..', 'pyconfig.h')
+ pyconfig_h = os.path.join(srcdir, 'PC', 'pyconfig.h')
self.assertTrue(os.path.exists(pyconfig_h), pyconfig_h)
elif os.name == 'posix':
makefile_dir = os.path.dirname(sysconfig.get_makefile_filename())
diff --git
a/Misc/NEWS.d/next/Windows/2025-05-13-13-25-27.gh-issue-133779.-YcTBz.rst
b/Misc/NEWS.d/next/Windows/2025-05-13-13-25-27.gh-issue-133779.-YcTBz.rst
new file mode 100644
index 00000000000000..550600d5eebf11
--- /dev/null
+++ b/Misc/NEWS.d/next/Windows/2025-05-13-13-25-27.gh-issue-133779.-YcTBz.rst
@@ -0,0 +1,6 @@
+Reverts the change to generate different :file:`pyconfig.h` files based on
+compiler settings, as it was frequently causing extension builds to break.
+In particular, the ``Py_GIL_DISABLED`` preprocessor variable must now always
+be defined explicitly when compiling for the experimental free-threaded
+runtime. The :func:`sysconfig.get_config_var` function can be used to
+determine whether the current runtime was compiled with that flag or not.
diff --git a/PC/pyconfig.h.in b/PC/pyconfig.h
similarity index 97%
rename from PC/pyconfig.h.in
rename to PC/pyconfig.h
index 9e70303868e5de..66fe2ab0998493 100644
--- a/PC/pyconfig.h.in
+++ b/PC/pyconfig.h
@@ -94,12 +94,22 @@ WIN32 is still required for the locale module.
#endif
#endif /* Py_BUILD_CORE || Py_BUILD_CORE_BUILTIN || Py_BUILD_CORE_MODULE */
-/* Define to 1 if you want to disable the GIL */
-/* Uncomment the definition for free-threaded builds, or define it manually
- * when compiling extension modules. Note that we test with #ifdef, so
- * defining as 0 will still disable the GIL. */
-#ifndef Py_GIL_DISABLED
-/* #define Py_GIL_DISABLED 1 */
+/* _DEBUG implies Py_DEBUG */
+#ifdef _DEBUG
+# define Py_DEBUG 1
+#endif
+
+/* Define to 1 when compiling for experimental free-threaded builds */
+#ifdef Py_GIL_DISABLED
+/* We undefine if it was set to zero because all later checks are #ifdef.
+ * Note that non-Windows builds do not do this, and so every effort should
+ * be made to avoid defining the variable at all when not desired. However,
+ * sysconfig.get_config_var always returns a 1 or a 0, and so it seems likely
+ * that a build backend will define it with the value.
+ */
+#if Py_GIL_DISABLED == 0
+#undef Py_GIL_DISABLED
+#endif
#endif
/* Compiler specific defines */
diff --git a/PCbuild/_freeze_module.vcxproj b/PCbuild/_freeze_module.vcxproj
index 8c161835af9a8c..efff6a58d895cb 100644
--- a/PCbuild/_freeze_module.vcxproj
+++ b/PCbuild/_freeze_module.vcxproj
@@ -276,7 +276,7 @@
<ClCompile Include="..\Python\uniqueid.c" />
</ItemGroup>
<ItemGroup>
- <ClInclude Include="..\PC\pyconfig.h.in" />
+ <ClInclude Include="..\PC\pyconfig.h" />
</ItemGroup>
<ItemGroup>
<!-- BEGIN frozen modules -->
@@ -436,31 +436,6 @@
<ImportGroup Label="ExtensionTargets">
</ImportGroup>
- <!-- Direct copy from pythoncore.vcxproj, but this one is only used for our
- own build. All other extension modules will use the copy that pythoncore
- generates. -->
- <Target Name="_UpdatePyconfig" BeforeTargets="PrepareForBuild">
- <MakeDir Directories="$(IntDir)" Condition="!Exists($(IntDir))" />
- <ItemGroup>
- <PyConfigH Remove="@(PyConfigH)" />
- <PyConfigH Include="@(ClInclude)" Condition="'%(Filename)%(Extension)'
== 'pyconfig.h.in'" />
- </ItemGroup>
- <Error Text="Did not find pyconfig.h" Condition="@(ClInclude) == ''" />
- <PropertyGroup>
- <PyConfigH>@(PyConfigH->'%(FullPath)', ';')</PyConfigH>
-
<PyConfigHText>$([System.IO.File]::ReadAllText($(PyConfigH)))</PyConfigHText>
- <OldPyConfigH
Condition="Exists('$(IntDir)pyconfig.h')">$([System.IO.File]::ReadAllText('$(IntDir)pyconfig.h'))</OldPyConfigH>
- </PropertyGroup>
- <PropertyGroup Condition="$(DisableGil) == 'true'">
- <PyConfigHText>$(PyConfigHText.Replace('/* #define Py_GIL_DISABLED 1
*/', '#define Py_GIL_DISABLED 1'))</PyConfigHText>
- </PropertyGroup>
- <Message Text="Updating pyconfig.h" Condition="$(PyConfigHText.TrimEnd())
!= $(OldPyConfigH.TrimEnd())" />
- <WriteLinesToFile File="$(IntDir)pyconfig.h"
- Lines="$(PyConfigHText)"
- Overwrite="true"
- Condition="$(PyConfigHText.TrimEnd()) !=
$(OldPyConfigH.TrimEnd())" />
- </Target>
-
<Target Name="_RebuildGetPath" AfterTargets="_RebuildFrozen"
Condition="$(Configuration) != 'PGUpdate'">
<Exec Command='"$(TargetPath)" "%(GetPath.ModName)" "%(GetPath.FullPath)"
"%(GetPath.IntFile)"' />
diff --git a/PCbuild/pyproject.props b/PCbuild/pyproject.props
index 4e414dc913b9d5..7272542e13a5ca 100644
--- a/PCbuild/pyproject.props
+++ b/PCbuild/pyproject.props
@@ -10,10 +10,9 @@
<Py_IntDir Condition="'$(Py_IntDir)' ==
''">$(MSBuildThisFileDirectory)obj\</Py_IntDir>
<IntDir>$(Py_IntDir)\$(MajorVersionNumber)$(MinorVersionNumber)$(ArchName)_$(Configuration)\$(ProjectName)\</IntDir>
<IntDir>$(IntDir.Replace(`\\`, `\`))</IntDir>
- <!-- pyconfig.h is updated by pythoncore.vcxproj, so it's always in
pythoncore's IntDir -->
-
<GeneratedPyConfigDir>$(Py_IntDir)\$(MajorVersionNumber)$(MinorVersionNumber)$(ArchName)_$(Configuration)\pythoncore\</GeneratedPyConfigDir>
<GeneratedFrozenModulesDir>$(Py_IntDir)\$(MajorVersionNumber)$(MinorVersionNumber)_frozen\</GeneratedFrozenModulesDir>
<GeneratedZlibNgDir>$(Py_IntDir)\$(MajorVersionNumber)$(MinorVersionNumber)$(ArchName)_$(Configuration)\zlib-ng\</GeneratedZlibNgDir>
+
<GeneratedJitStencilsDir>$(Py_IntDir)\$(MajorVersionNumber)$(MinorVersionNumber)_$(Configuration)</GeneratedJitStencilsDir>
<TargetName Condition="'$(TargetName)' == ''">$(ProjectName)</TargetName>
<TargetName>$(TargetName)$(PyDebugExt)</TargetName>
<GenerateManifest>false</GenerateManifest>
@@ -49,11 +48,12 @@
<_PlatformPreprocessorDefinition Condition="$(Platform) ==
'x64'">_WIN64;</_PlatformPreprocessorDefinition>
<_PlatformPreprocessorDefinition Condition="$(Platform) == 'x64' and
$(PlatformToolset) !=
'ClangCL'">_M_X64;$(_PlatformPreprocessorDefinition)</_PlatformPreprocessorDefinition>
<_Py3NamePreprocessorDefinition>PY3_DLLNAME=L"$(Py3DllName)$(PyDebugExt)";</_Py3NamePreprocessorDefinition>
+ <_FreeThreadedPreprocessorDefinition Condition="$(DisableGil) ==
'true'">Py_GIL_DISABLED=1;</_FreeThreadedPreprocessorDefinition>
</PropertyGroup>
<ItemDefinitionGroup>
<ClCompile>
-
<AdditionalIncludeDirectories>$(PySourcePath)Include;$(PySourcePath)Include\internal;$(PySourcePath)Include\internal\mimalloc;$(GeneratedPyConfigDir);$(PySourcePath)PC;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-
<PreprocessorDefinitions>WIN32;$(_Py3NamePreprocessorDefinition);$(_PlatformPreprocessorDefinition)$(_DebugPreprocessorDefinition)$(_PyStatsPreprocessorDefinition)$(_PydPreprocessorDefinition)%(PreprocessorDefinitions)</PreprocessorDefinitions>
+
<AdditionalIncludeDirectories>$(PySourcePath)Include;$(PySourcePath)Include\internal;$(PySourcePath)Include\internal\mimalloc;$(PySourcePath)PC;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+
<PreprocessorDefinitions>WIN32;$(_Py3NamePreprocessorDefinition)$(_PlatformPreprocessorDefinition)$(_DebugPreprocessorDefinition)$(_PyStatsPreprocessorDefinition)$(_PydPreprocessorDefinition)$(_FreeThreadedPreprocessorDefinition)%(PreprocessorDefinitions)</PreprocessorDefinitions>
<PreprocessorDefinitions Condition="'$(SupportPGO)' and
($(Configuration) == 'PGInstrument' or $(Configuration) ==
'PGUpdate')">_Py_USING_PGO=1;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<Optimization>MaxSpeed</Optimization>
diff --git a/PCbuild/pythoncore.vcxproj b/PCbuild/pythoncore.vcxproj
index 549d6284972afc..32a8f2dbad3d5e 100644
--- a/PCbuild/pythoncore.vcxproj
+++ b/PCbuild/pythoncore.vcxproj
@@ -102,6 +102,7 @@
<AdditionalOptions>/Zm200 %(AdditionalOptions)</AdditionalOptions>
<AdditionalIncludeDirectories>$(PySourcePath)Modules\_hacl;$(PySourcePath)Modules\_hacl\include;$(PySourcePath)Python;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<AdditionalIncludeDirectories
Condition="$(IncludeExternals)">$(zlibNgDir);$(GeneratedZlibNgDir);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+ <AdditionalIncludeDirectories Condition="'$(UseJIT)' ==
'true'">$(GeneratedJitStencilsDir);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<PreprocessorDefinitions>_USRDLL;Py_BUILD_CORE;Py_BUILD_CORE_BUILTIN;Py_ENABLE_SHARED;MS_DLL_ID="$(SysWinVer)";ZLIB_COMPAT;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<PreprocessorDefinitions
Condition="$(IncludeExternals)">_Py_HAVE_ZLIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<PreprocessorDefinitions Condition="'$(UseJIT)' ==
'true'">_Py_JIT;%(PreprocessorDefinitions)</PreprocessorDefinitions>
@@ -409,7 +410,7 @@
<ClInclude Include="..\Parser\string_parser.h" />
<ClInclude Include="..\Parser\pegen.h" />
<ClInclude Include="..\PC\errmap.h" />
- <ClInclude Include="..\PC\pyconfig.h.in" />
+ <ClInclude Include="..\PC\pyconfig.h" />
<ClInclude Include="..\Python\condvar.h" />
<ClInclude Include="..\Python\stdlib_module_names.h" />
<ClInclude Include="..\Python\thread_nt.h" />
@@ -688,34 +689,6 @@
</ImportGroup>
<Target Name="_TriggerRegen" BeforeTargets="PrepareForBuild"
DependsOnTargets="Regen" />
- <Target Name="_UpdatePyconfig" BeforeTargets="PrepareForBuild">
- <MakeDir Directories="$(IntDir)" Condition="!Exists($(IntDir))" />
- <ItemGroup>
- <PyConfigH Remove="@(PyConfigH)" />
- <PyConfigH Include="@(ClInclude)" Condition="'%(Filename)%(Extension)'
== 'pyconfig.h.in'" />
- </ItemGroup>
- <Error Text="Did not find pyconfig.h" Condition="@(ClInclude) == ''" />
- <PropertyGroup>
- <PyConfigH>@(PyConfigH->'%(FullPath)', ';')</PyConfigH>
-
<PyConfigHText>$([System.IO.File]::ReadAllText($(PyConfigH)))</PyConfigHText>
- <OldPyConfigH
Condition="Exists('$(IntDir)pyconfig.h')">$([System.IO.File]::ReadAllText('$(IntDir)pyconfig.h'))</OldPyConfigH>
- </PropertyGroup>
- <PropertyGroup Condition="$(DisableGil) == 'true'">
- <PyConfigHText>$(PyConfigHText.Replace('/* #define Py_GIL_DISABLED 1
*/', '#define Py_GIL_DISABLED 1'))</PyConfigHText>
- </PropertyGroup>
- <Message Text="Updating pyconfig.h" Condition="$(PyConfigHText.TrimEnd())
!= $(OldPyConfigH.TrimEnd())" />
- <WriteLinesToFile File="$(IntDir)pyconfig.h"
- Lines="$(PyConfigHText)"
- Overwrite="true"
- Condition="$(PyConfigHText.TrimEnd()) !=
$(OldPyConfigH.TrimEnd())" />
- </Target>
- <Target Name="_CopyPyconfig" Inputs="$(IntDir)pyconfig.h"
Outputs="$(OutDir)pyconfig.h" AfterTargets="Build"
DependsOnTargets="_UpdatePyconfig">
- <Copy SourceFiles="$(IntDir)pyconfig.h" DestinationFolder="$(OutDir)" />
- </Target>
- <Target Name="_CleanPyconfig" AfterTargets="Clean">
- <Delete Files="$(IntDir)pyconfig.h;$(OutDir)pyconfig.h" />
- </Target>
-
<Target Name="_GetBuildInfo" BeforeTargets="PrepareForBuild">
<PropertyGroup>
<GIT Condition="$(GIT) == ''">git</GIT>
diff --git a/PCbuild/regen.targets b/PCbuild/regen.targets
index 3ad17737807235..21de614e71ddce 100644
--- a/PCbuild/regen.targets
+++ b/PCbuild/regen.targets
@@ -29,12 +29,12 @@
<_KeywordSources
Include="$(PySourcePath)Grammar\python.gram;$(PySourcePath)Grammar\Tokens" />
<_KeywordOutputs Include="$(PySourcePath)Lib\keyword.py" />
<!-- Taken from _Target._compute_digest in Tools\jit\_targets.py: -->
- <_JITSources
Include="$(PySourcePath)Python\executor_cases.c.h;$(GeneratedPyConfigDir)pyconfig.h;$(PySourcePath)Tools\jit\**"/>
+ <_JITSources
Include="$(PySourcePath)Python\executor_cases.c.h;$(PySourcePath)PC\pyconfig.h;$(PySourcePath)Tools\jit\**"/>
<!-- Need to explicitly enumerate these, since globbing doesn't work for
missing outputs: -->
- <_JITOutputs Include="$(GeneratedPyConfigDir)jit_stencils.h"/>
- <_JITOutputs
Include="$(GeneratedPyConfigDir)jit_stencils-aarch64-pc-windows-msvc.h"
Condition="$(Platform) == 'ARM64'"/>
- <_JITOutputs
Include="$(GeneratedPyConfigDir)jit_stencils-i686-pc-windows-msvc.h"
Condition="$(Platform) == 'Win32'"/>
- <_JITOutputs
Include="$(GeneratedPyConfigDir)jit_stencils-x86_64-pc-windows-msvc.h"
Condition="$(Platform) == 'x64'"/>
+ <_JITOutputs Include="$(GeneratedJitStencilsDir)jit_stencils.h"/>
+ <_JITOutputs
Include="$(GeneratedJitStencilsDir)jit_stencils-aarch64-pc-windows-msvc.h"
Condition="$(Platform) == 'ARM64'"/>
+ <_JITOutputs
Include="$(GeneratedJitStencilsDir)jit_stencils-i686-pc-windows-msvc.h"
Condition="$(Platform) == 'Win32'"/>
+ <_JITOutputs
Include="$(GeneratedJitStencilsDir)jit_stencils-x86_64-pc-windows-msvc.h"
Condition="$(Platform) == 'x64'"/>
<_CasesSources
Include="$(PySourcePath)Python\bytecodes.c;$(PySourcePath)Python\optimizer_bytecodes.c;"/>
<_CasesOutputs
Include="$(PySourcePath)Python\generated_cases.c.h;$(PySourcePath)Include\opcode_ids.h;$(PySourcePath)Include\internal\pycore_uop_ids.h;$(PySourcePath)Python\opcode_targets.h;$(PySourcePath)Include\internal\pycore_opcode_metadata.h;$(PySourcePath)Include\internal\pycore_uop_metadata.h;$(PySourcePath)Python\optimizer_cases.c.h;$(PySourcePath)Lib\_opcode_metadata.py"/>
<_SbomSources Include="$(PySourcePath)PCbuild\get_externals.bat" />
@@ -116,7 +116,7 @@
<Target Name="_RegenJIT"
Condition="'$(UseJIT)' == 'true'"
- DependsOnTargets="_UpdatePyconfig;FindPythonForBuild"
+ DependsOnTargets="FindPythonForBuild"
Inputs="@(_JITSources)"
Outputs="@(_JITOutputs)">
<PropertyGroup>
@@ -126,7 +126,7 @@
<JITArgs Condition="$(Configuration) == 'Debug'">$(JITArgs)
--debug</JITArgs>
</PropertyGroup>
<Exec Command='$(PythonForBuild) "$(PySourcePath)Tools\jit\build.py"
$(JITArgs)'
- WorkingDirectory="$(GeneratedPyConfigDir)"/>
+ WorkingDirectory="$(GeneratedJitStencilsDir)"/>
</Target>
<Target Name="_CleanJIT" AfterTargets="Clean">
<Delete Files="@(_JITOutputs)"/>
diff --git a/Tools/msi/dev/dev_files.wxs b/Tools/msi/dev/dev_files.wxs
index 4357dc86d9d356..21f9c848cc6be5 100644
--- a/Tools/msi/dev/dev_files.wxs
+++ b/Tools/msi/dev/dev_files.wxs
@@ -3,7 +3,7 @@
<Fragment>
<ComponentGroup Id="dev_pyconfig">
<Component Id="include_pyconfig.h" Directory="include" Guid="*">
- <File Id="include_pyconfig.h" Name="pyconfig.h"
Source="pyconfig.h" KeyPath="yes" />
+ <File Id="include_pyconfig.h" Name="pyconfig.h"
Source="!(bindpath.src)PC\pyconfig.h" KeyPath="yes" />
</Component>
</ComponentGroup>
</Fragment>
diff --git a/Tools/peg_generator/pegen/build.py
b/Tools/peg_generator/pegen/build.py
index 41338c29bdd9eb..be289c352de585 100644
--- a/Tools/peg_generator/pegen/build.py
+++ b/Tools/peg_generator/pegen/build.py
@@ -108,6 +108,8 @@ def compile_c_extension(
extra_compile_args.append("-DPy_BUILD_CORE_MODULE")
# Define _Py_TEST_PEGEN to not call PyAST_Validate() in Parser/pegen.c
extra_compile_args.append("-D_Py_TEST_PEGEN")
+ if sys.platform == "win32" and sysconfig.get_config_var("Py_GIL_DISABLED"):
+ extra_compile_args.append("-DPy_GIL_DISABLED")
extra_link_args = get_extra_flags("LDFLAGS", "PY_LDFLAGS_NODIST")
if keep_asserts:
extra_compile_args.append("-UNDEBUG")
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