python · vstinner · Sep 22, 2026
@@ -373,10 +373,10 @@ _close_range_except(int start_fd,
     return 0;
 }
 
-#if defined(HAVE_GETDENTS64) \
+#if defined(_Py_HAVE_GETDENTS64) \
     || (defined(__linux__) && defined(HAVE_SYS_SYSCALL_H))
 
-#ifdef HAVE_GETDENTS64
+#ifdef _Py_HAVE_GETDENTS64
 #  define py_dirent64 dirent64
 #else
 /* It doesn't matter if d_name has room for NAME_MAX chars; we're using this
@@ -392,7 +392,7 @@ struct py_dirent64 {
    unsigned char  d_type;
    char           d_name[256];  /* Filename (null-terminated) */
 };
-#endif  // !HAVE_GETDENTS64
+#endif  // !_Py_HAVE_GETDENTS64
 
 static int
 _brute_force_closer(int first, int last)
@@ -435,7 +435,7 @@ _close_open_fds_safe(int start_fd, int *fds_to_keep, Py_ssize_t fds_to_keep_len)
         char buffer[sizeof(struct py_dirent64)];
         Py_ssize_t bytes;
         while (1) {
-#ifdef HAVE_GETDENTS64
+#ifdef _Py_HAVE_GETDENTS64
             bytes = getdents64(fd_dir_fd, buffer, sizeof(buffer));
 #else
             bytes = syscall(SYS_getdents64, fd_dir_fd,

diff --git a/Modules/clinic/posixmodule.c.h b/Modules/clinic/posixmodule.c.h
diff --git a/Modules/clinic/signalmodule.c.h b/Modules/clinic/signalmodule.c.h
diff --git a/Modules/clinic/socketmodule.c.h b/Modules/clinic/socketmodule.c.h
diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
@@ -10863,7 +10863,7 @@ os_wait_impl(PyObject *module)
 
 
 // This system call always crashes on older Android versions.
-#if defined(HAVE_PIDFD_OPEN) \
+#if defined(_Py_HAVE_PIDFD_OPEN) \
     || (defined(__linux__) && defined(__NR_pidfd_open) \
         && !(defined(__ANDROID__) && __ANDROID_API__ < 31))
 /*[clinic input]
@@ -10881,7 +10881,7 @@ static PyObject *
 os_pidfd_open_impl(PyObject *module, pid_t pid, unsigned int flags)
 /*[clinic end generated code: output=5c7252698947dc41 input=03058b32c389f874]*/
 {
-#ifdef HAVE_PIDFD_OPEN
+#ifdef _Py_HAVE_PIDFD_OPEN
     int fd = pidfd_open(pid, flags);
 #else
     int fd = syscall(__NR_pidfd_open, pid, flags);
@@ -10894,7 +10894,7 @@ os_pidfd_open_impl(PyObject *module, pid_t pid, unsigned int flags)
 #endif
 
 
-#if defined(HAVE_PIDFD_GETFD) \
+#if defined(_Py_HAVE_PIDFD_GETFD) \
     || (defined(__linux__) && defined(__NR_pidfd_getfd) \
         && !(defined(__ANDROID__) && __ANDROID_API__ < 31))
 /*[clinic input]
@@ -10915,7 +10915,7 @@ os_pidfd_getfd_impl(PyObject *module, int pidfd, int targetfd,
                     unsigned int flags)
 /*[clinic end generated code: output=e1a1415a13c7137f input=ef6417fb10deb1cc]*/
 {
-#ifdef HAVE_PIDFD_GETFD
+#ifdef _Py_HAVE_PIDFD_GETFD
     int fd = pidfd_getfd(pidfd, targetfd, flags);
 #else
     int fd = syscall(__NR_pidfd_getfd, pidfd, targetfd, flags);

diff --git a/Modules/signalmodule.c b/Modules/signalmodule.c
@@ -1304,7 +1304,7 @@ signal_pthread_kill_impl(PyObject *module, unsigned long thread_id,
 
 
 // This system call always crashes on older Android versions.
-#if defined(HAVE_PIDFD_SEND_SIGNAL) \
+#if defined(_Py_HAVE_PIDFD_SEND_SIGNAL) \
     || (defined(__linux__) && defined(__NR_pidfd_send_signal) \
         && !(defined(__ANDROID__) && __ANDROID_API__ < 31))
 /*[clinic input]
@@ -1329,7 +1329,7 @@ signal_pidfd_send_signal_impl(PyObject *module, int pidfd, int signalnum,
         PyErr_SetString(PyExc_TypeError, "siginfo must be None");
         return NULL;
     }
-#ifdef HAVE_PIDFD_SEND_SIGNAL
+#ifdef _Py_HAVE_PIDFD_SEND_SIGNAL
     int res = pidfd_send_signal(pidfd, signalnum, NULL, flags);
 #else
     int res = syscall(__NR_pidfd_send_signal, pidfd, signalnum, NULL, flags);

diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
@@ -635,14 +635,14 @@ _PyLong_##NAME##_Converter(PyObject *obj, void *ptr)                \
     return 1;                                                       \
 }
 
-#if defined(HAVE_IF_INDEXTONAME) || defined(MS_WINDOWS_DESKTOP)
+#if defined(_Py_HAVE_IF_INDEXTONAME) || defined(MS_WINDOWS_DESKTOP)
 # ifdef MS_WINDOWS
     UNSIGNED_INT_CONVERTER(NetIfindex, NET_IFINDEX)
 # else
 #   define _PyLong_NetIfindex_Converter _PyLong_UnsignedInt_Converter
 #   define NET_IFINDEX unsigned int
 # endif
-#endif // defined(HAVE_IF_INDEXTONAME) || defined(MS_WINDOWS_DESKTOP)
+#endif // defined(_Py_HAVE_IF_INDEXTONAME) || defined(MS_WINDOWS_DESKTOP)
 
 /*[python input]
 class NET_IFINDEX_converter(CConverter):
@@ -7424,7 +7424,7 @@ _socket_if_nameindex_impl(PyObject *module)
 
 #endif // defined(HAVE_IF_NAMEINDEX) || defined(MS_WINDOWS_DESKTOP)
 
-#if defined(HAVE_IF_NAMETOINDEX) || defined(MS_WINDOWS_DESKTOP)
+#if defined(_Py_HAVE_IF_NAMETOINDEX) || defined(MS_WINDOWS_DESKTOP)
 
 /*[clinic input]
 _socket.if_nametoindex
@@ -7454,9 +7454,9 @@ _socket_if_nametoindex_impl(PyObject *module, PyObject *oname)
     return PyLong_FromUnsignedLong(index);
 }
 
-#endif // defined(HAVE_IF_NAMETOINDEX) || defined(MS_WINDOWS_DESKTOP)
+#endif // defined(_Py_HAVE_IF_NAMETOINDEX) || defined(MS_WINDOWS_DESKTOP)
 
-#if defined(HAVE_IF_INDEXTONAME) || defined(MS_WINDOWS_DESKTOP)
+#if defined(_Py_HAVE_IF_INDEXTONAME) || defined(MS_WINDOWS_DESKTOP)
 
 /*[clinic input]
 @permit_long_summary
@@ -7481,7 +7481,7 @@ _socket_if_indextoname_impl(PyObject *module, NET_IFINDEX index)
     return PyUnicode_DecodeFSDefault(name);
 }
 
-#endif // defined(HAVE_IF_INDEXTONAME) || defined(MS_WINDOWS_DESKTOP)
+#endif // defined(_Py_HAVE_IF_INDEXTONAME) || defined(MS_WINDOWS_DESKTOP)
 
 
 #ifdef CMSG_LEN

diff --git a/Python/perf_jit_trampoline.c b/Python/perf_jit_trampoline.c
@@ -672,7 +672,7 @@ static void perf_map_jit_write_entry_with_name(
     uint64_t thread_id = 0;
     pthread_threadid_np(NULL, &thread_id);
     ev.thread_id = (uint32_t)thread_id;
-#elif defined(HAVE_GETTID)
+#elif defined(_Py_HAVE_GETTID)
     ev.thread_id = gettid();
 #else
     ev.thread_id = syscall(SYS_gettid);  // Get thread ID via system call

diff --git a/Python/thread_pthread.h b/Python/thread_pthread.h
@@ -18,7 +18,7 @@
 #include <signal.h>
 #include <unistd.h>             /* pause(), also getthrid() on OpenBSD */
 
-#ifdef HAVE_GETTID
+#ifdef _Py_HAVE_GETTID
 #   include <unistd.h>          // gettid()
 #elif defined(__linux__)
 #   include <sys/syscall.h>     /* syscall(SYS_gettid) */
@@ -384,7 +384,7 @@ PyThread_get_thread_native_id(void)
 #ifdef __APPLE__
     uint64_t native_id;
     (void) pthread_threadid_np(NULL, &native_id);
-#elif defined(HAVE_GETTID)
+#elif defined(_Py_HAVE_GETTID)
     pid_t native_id;
     native_id = gettid();
 #elif defined(__linux__)

diff --git a/Tools/build/check_capi_macros.py b/Tools/build/check_capi_macros.py
@@ -1,3 +1,4 @@
+#! /usr/bin/env python3
 """
 Check that all macros defined by the Python C API have a name starting with
 "Py". Ignore names listed by check_capi_macros_ignored.txt: macros with an

diff --git a/Tools/build/check_capi_macros_ignored.txt b/Tools/build/check_capi_macros_ignored.txt
@@ -239,7 +239,6 @@ HAVE_GDBM_H
 HAVE_GDBM_NDBM_H
 HAVE_GETADDRINFO
 HAVE_GETC_UNLOCKED
-HAVE_GETDENTS64
 HAVE_GETEGID
 HAVE_GETENTROPY
 HAVE_GETEUID
@@ -285,7 +284,6 @@ HAVE_GETSID
 HAVE_GETSOCKNAME
 HAVE_GETSPENT
 HAVE_GETSPNAM
-HAVE_GETTID
 HAVE_GETUID
 HAVE_GETWD
 HAVE_GLIBC_MEMMOVE_BUG
@@ -294,9 +292,7 @@ HAVE_GRP_H
 HAVE_HSTRERROR
 HAVE_HTOLE64
 HAVE_ICONV_H
-HAVE_IF_INDEXTONAME
 HAVE_IF_NAMEINDEX
-HAVE_IF_NAMETOINDEX
 HAVE_INET_ATON
 HAVE_INET_NTOA
 HAVE_INET_PTON
@@ -397,9 +393,6 @@ HAVE_PANELW
 HAVE_PANEL_H
 HAVE_PATHCONF
 HAVE_PAUSE
-HAVE_PIDFD_GETFD
-HAVE_PIDFD_OPEN
-HAVE_PIDFD_SEND_SIGNAL
 HAVE_PIPE
 HAVE_PIPE2
 HAVE_PLOCK