pyenv/plugins/python-build/share/python-build/patches/3.11.7/Python-3.11.7/0003-downstream-3.11-gh-153711-Avoid-use-of-dup3-and-pipe.patch
native-api f17a6499b0
Backport XCode 27 support to 3.11 (#3548)
Adapted 3.12 downstream patch
2026-09-17 04:58:50 +03:00

110 lines
4.7 KiB
Diff

From 9510b699fa047f500b99da13474f5d89e4b7a850 Mon Sep 17 00:00:00 2001
From: Ned Deily <nad@python.org>
Date: Wed, 5 Aug 2026 10:30:17 +0300
Subject: [PATCH] (downstream) [3.11] gh-153711: Avoid use of dup3 and pipe2
calls introduced in macOS 27 (#155211)
---
...-08-05-02-02-33.gh-issue-153711.pO9fFb.rst | 3 +++
configure | 23 +++++++++++++++++--
configure.ac | 11 +++++++--
3 files changed, 33 insertions(+), 4 deletions(-)
create mode 100644 Misc/NEWS.d/next/macOS/2026-08-05-02-02-33.gh-issue-153711.pO9fFb.rst
diff --git a/Misc/NEWS.d/next/macOS/2026-08-05-02-02-33.gh-issue-153711.pO9fFb.rst b/Misc/NEWS.d/next/macOS/2026-08-05-02-02-33.gh-issue-153711.pO9fFb.rst
new file mode 100644
index 00000000000..90804c179a4
--- /dev/null
+++ b/Misc/NEWS.d/next/macOS/2026-08-05-02-02-33.gh-issue-153711.pO9fFb.rst
@@ -0,0 +1,3 @@
+On macOS, do not attempt to use the :manpage:`dup3(2)` and
+:manpage:`pipe2(2)` system calls introduced in
+macOS 27 to prevent problems when running on older systems.
diff --git a/configure b/configure
index 8d2f3f4cc0f..39f6cf5e353 100755
--- a/configure
+++ b/configure
@@ -15209,7 +15209,7 @@ fi
# checks for library functions
for ac_func in \
accept4 alarm bind_textdomain_codeset chmod chown clock close_range confstr \
- copy_file_range ctermid dup dup3 execv explicit_bzero explicit_memset \
+ copy_file_range ctermid dup execv explicit_bzero explicit_memset \
faccessat fchmod fchmodat fchown fchownat fdopendir fdwalk fexecve \
fork fork1 fpathconf fstatat ftime ftruncate futimens futimes futimesat \
gai_strerror getegid getentropy geteuid getgid getgrgid getgrgid_r \
@@ -15219,7 +15219,7 @@ for ac_func in \
getspnam getuid getwd if_nameindex initgroups kill killpg lchown linkat \
lockf lstat lutimes madvise mbrtowc memrchr mkdirat mkfifo mkfifoat \
mknod mknodat mktime mmap mremap nice openat opendir pathconf pause pipe \
- pipe2 plock poll posix_fadvise posix_fallocate posix_spawn posix_spawnp \
+ plock poll posix_fadvise posix_fallocate posix_spawn posix_spawnp \
pread preadv preadv2 pthread_condattr_setclock pthread_init pthread_kill \
pwrite pwritev pwritev2 readlink readlinkat readv realpath renameat \
rtpSpawn sched_get_priority_max sched_rr_get_interval sched_setaffinity \
@@ -15262,6 +15262,25 @@ done
fi
+# macOS introduced dup3 and pipe2 in macOS 27, late in the
+# lifetime of this version of Python. Rather than adding weaklinking
+# support for them, just continue to ignore them.
+if test "$ac_sys_system" != "Darwin"; then
+ ac_fn_c_check_func "$LINENO" "dup3" "ac_cv_func_dup3"
+if test "x$ac_cv_func_dup3" = xyes
+then :
+ printf '%s\n' "#define HAVE_DUP3 1" >>confdefs.h
+
+fi
+ac_fn_c_check_func "$LINENO" "pipe2" "ac_cv_func_pipe2"
+if test "x$ac_cv_func_pipe2" = xyes
+then :
+ printf '%s\n' "#define HAVE_PIPE2 1" >>confdefs.h
+
+fi
+
+fi
+
ac_fn_c_check_decl "$LINENO" "dirfd" "ac_cv_have_decl_dirfd" "#include <sys/types.h>
#include <dirent.h>
"
diff --git a/configure.ac b/configure.ac
index 52d5c1f7dd3..0cca5dd00c7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4594,7 +4594,7 @@ fi
# checks for library functions
AC_CHECK_FUNCS([ \
accept4 alarm bind_textdomain_codeset chmod chown clock close_range confstr \
- copy_file_range ctermid dup dup3 execv explicit_bzero explicit_memset \
+ copy_file_range ctermid dup execv explicit_bzero explicit_memset \
faccessat fchmod fchmodat fchown fchownat fdopendir fdwalk fexecve \
fork fork1 fpathconf fstatat ftime ftruncate futimens futimes futimesat \
gai_strerror getegid getentropy geteuid getgid getgrgid getgrgid_r \
@@ -4604,7 +4604,7 @@ AC_CHECK_FUNCS([ \
getspnam getuid getwd if_nameindex initgroups kill killpg lchown linkat \
lockf lstat lutimes madvise mbrtowc memrchr mkdirat mkfifo mkfifoat \
mknod mknodat mktime mmap mremap nice openat opendir pathconf pause pipe \
- pipe2 plock poll posix_fadvise posix_fallocate posix_spawn posix_spawnp \
+ plock poll posix_fadvise posix_fallocate posix_spawn posix_spawnp \
pread preadv preadv2 pthread_condattr_setclock pthread_init pthread_kill \
pwrite pwritev pwritev2 readlink readlinkat readv realpath renameat \
rtpSpawn sched_get_priority_max sched_rr_get_interval sched_setaffinity \
@@ -4626,6 +4626,13 @@ if test "$MACHDEP" != linux; then
AC_CHECK_FUNCS(lchmod)
fi
+# macOS introduced dup3 and pipe2 in macOS 27, late in the
+# lifetime of this version of Python. Rather than adding weaklinking
+# support for them, just continue to ignore them.
+if test "$ac_sys_system" != "Darwin"; then
+ AC_CHECK_FUNCS([dup3 pipe2])
+fi
+
AC_CHECK_DECL(dirfd,
AC_DEFINE(HAVE_DIRFD, 1,
Define if you have the 'dirfd' function or macro.), ,
--
2.55.0.windows.3