https://github.com/python/cpython/commit/68266c1f01e5791558cb088dfb0e26ecd577295e
commit: 68266c1f01e5791558cb088dfb0e26ecd577295e
branch: main
author: Victor Stinner <[email protected]>
committer: vstinner <[email protected]>
date: 2025-11-10T15:50:51+01:00
summary:
gh-141341: Rename COMPILER macro to _Py_COMPILER on Windows (#141342)
files:
A Misc/NEWS.d/next/C_API/2025-11-10-11-26-26.gh-issue-141341.OsO6-y.rst
M PC/pyconfig.h
M Python/getcompiler.c
diff --git
a/Misc/NEWS.d/next/C_API/2025-11-10-11-26-26.gh-issue-141341.OsO6-y.rst
b/Misc/NEWS.d/next/C_API/2025-11-10-11-26-26.gh-issue-141341.OsO6-y.rst
new file mode 100644
index 00000000000000..460923b4d62e22
--- /dev/null
+++ b/Misc/NEWS.d/next/C_API/2025-11-10-11-26-26.gh-issue-141341.OsO6-y.rst
@@ -0,0 +1,2 @@
+On Windows, rename the ``COMPILER`` macro to ``_Py_COMPILER`` to avoid name
+conflicts. Patch by Victor Stinner.
diff --git a/PC/pyconfig.h b/PC/pyconfig.h
index 0e8379387cd025..a126fca6f5aafb 100644
--- a/PC/pyconfig.h
+++ b/PC/pyconfig.h
@@ -118,7 +118,7 @@ WIN32 is still required for the locale module.
/* Microsoft C defines _MSC_VER, as does clang-cl.exe */
#ifdef _MSC_VER
-/* We want COMPILER to expand to a string containing _MSC_VER's *value*.
+/* We want _Py_COMPILER to expand to a string containing _MSC_VER's *value*.
* This is horridly tricky, because the stringization operator only works
* on macro arguments, and doesn't evaluate macros passed *as* arguments.
*/
@@ -148,7 +148,7 @@ WIN32 is still required for the locale module.
#define MS_WIN64
#endif
-/* set the COMPILER and support tier
+/* set the _Py_COMPILER and support tier
*
* win_amd64 MSVC (x86_64-pc-windows-msvc): 1
* win32 MSVC (i686-pc-windows-msvc): 1
@@ -158,22 +158,22 @@ WIN32 is still required for the locale module.
#ifdef MS_WIN64
#if defined(_M_X64) || defined(_M_AMD64)
#if defined(__clang__)
-#define COMPILER ("[Clang " __clang_version__ "] 64 bit (AMD64) with MSC v."
_Py_STRINGIZE(_MSC_VER) " CRT]")
+#define _Py_COMPILER ("[Clang " __clang_version__ "] 64 bit (AMD64) with MSC
v." _Py_STRINGIZE(_MSC_VER) " CRT]")
#define PY_SUPPORT_TIER 0
#elif defined(__INTEL_COMPILER)
-#define COMPILER ("[ICC v." _Py_STRINGIZE(__INTEL_COMPILER) " 64 bit (amd64)
with MSC v." _Py_STRINGIZE(_MSC_VER) " CRT]")
+#define _Py_COMPILER ("[ICC v." _Py_STRINGIZE(__INTEL_COMPILER) " 64 bit
(amd64) with MSC v." _Py_STRINGIZE(_MSC_VER) " CRT]")
#define PY_SUPPORT_TIER 0
#else
-#define COMPILER _Py_PASTE_VERSION("64 bit (AMD64)")
+#define _Py_COMPILER _Py_PASTE_VERSION("64 bit (AMD64)")
#define PY_SUPPORT_TIER 1
#endif /* __clang__ */
#define PYD_PLATFORM_TAG "win_amd64"
#elif defined(_M_ARM64)
-#define COMPILER _Py_PASTE_VERSION("64 bit (ARM64)")
+#define _Py_COMPILER _Py_PASTE_VERSION("64 bit (ARM64)")
#define PY_SUPPORT_TIER 3
#define PYD_PLATFORM_TAG "win_arm64"
#else
-#define COMPILER _Py_PASTE_VERSION("64 bit (Unknown)")
+#define _Py_COMPILER _Py_PASTE_VERSION("64 bit (Unknown)")
#define PY_SUPPORT_TIER 0
#endif
#endif /* MS_WIN64 */
@@ -220,22 +220,22 @@ typedef _W64 int Py_ssize_t;
#if defined(MS_WIN32) && !defined(MS_WIN64)
#if defined(_M_IX86)
#if defined(__clang__)
-#define COMPILER ("[Clang " __clang_version__ "] 32 bit (Intel) with MSC v."
_Py_STRINGIZE(_MSC_VER) " CRT]")
+#define _Py_COMPILER ("[Clang " __clang_version__ "] 32 bit (Intel) with MSC
v." _Py_STRINGIZE(_MSC_VER) " CRT]")
#define PY_SUPPORT_TIER 0
#elif defined(__INTEL_COMPILER)
-#define COMPILER ("[ICC v." _Py_STRINGIZE(__INTEL_COMPILER) " 32 bit (Intel)
with MSC v." _Py_STRINGIZE(_MSC_VER) " CRT]")
+#define _Py_COMPILER ("[ICC v." _Py_STRINGIZE(__INTEL_COMPILER) " 32 bit
(Intel) with MSC v." _Py_STRINGIZE(_MSC_VER) " CRT]")
#define PY_SUPPORT_TIER 0
#else
-#define COMPILER _Py_PASTE_VERSION("32 bit (Intel)")
+#define _Py_COMPILER _Py_PASTE_VERSION("32 bit (Intel)")
#define PY_SUPPORT_TIER 1
#endif /* __clang__ */
#define PYD_PLATFORM_TAG "win32"
#elif defined(_M_ARM)
-#define COMPILER _Py_PASTE_VERSION("32 bit (ARM)")
+#define _Py_COMPILER _Py_PASTE_VERSION("32 bit (ARM)")
#define PYD_PLATFORM_TAG "win_arm32"
#define PY_SUPPORT_TIER 0
#else
-#define COMPILER _Py_PASTE_VERSION("32 bit (Unknown)")
+#define _Py_COMPILER _Py_PASTE_VERSION("32 bit (Unknown)")
#define PY_SUPPORT_TIER 0
#endif
#endif /* MS_WIN32 && !MS_WIN64 */
@@ -273,7 +273,7 @@ typedef int pid_t;
#warning "Please use an up-to-date version of gcc! (>2.91 recommended)"
#endif
-#define COMPILER "[gcc]"
+#define _Py_COMPILER "[gcc]"
#define PY_LONG_LONG long long
#define PY_LLONG_MIN LLONG_MIN
#define PY_LLONG_MAX LLONG_MAX
@@ -286,7 +286,7 @@ typedef int pid_t;
/* XXX These defines are likely incomplete, but should be easy to fix.
They should be complete enough to build extension modules. */
-#define COMPILER "[lcc-win32]"
+#define _Py_COMPILER "[lcc-win32]"
typedef int pid_t;
/* __declspec() is supported here too - do nothing to get the defaults */
diff --git a/Python/getcompiler.c b/Python/getcompiler.c
index a5d26239e8772e..cc56ad8c895551 100644
--- a/Python/getcompiler.c
+++ b/Python/getcompiler.c
@@ -3,6 +3,10 @@
#include "Python.h"
+#ifdef _Py_COMPILER
+# define COMPILER _Py_COMPILER
+#endif
+
#ifndef COMPILER
// Note the __clang__ conditional has to come before the __GNUC__ one because
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