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8bd6b02444
* Upstream fix (3.14.7):51f6e01941* Dependency patch (3.14.6):e29411d405* Test on XCode 27
102 lines
3.6 KiB
Diff
102 lines
3.6 KiB
Diff
From cb9757118e29df43276f01701e73fe50c57b1b25 Mon Sep 17 00:00:00 2001
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From: Ned Deily <nad@python.org>
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Date: Wed, 5 Aug 2026 00:27:28 -0700
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Subject: [PATCH] [3.14] gh-153711: Avoid use of dup3 and pipe2 calls
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introduced in macOS 27 (#155206)
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---
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...-08-05-02-02-33.gh-issue-153711.pO9fFb.rst | 3 ++
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configure | 32 +++++++++++--------
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configure.ac | 8 ++++-
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3 files changed, 29 insertions(+), 14 deletions(-)
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create mode 100644 Misc/NEWS.d/next/macOS/2026-08-05-02-02-33.gh-issue-153711.pO9fFb.rst
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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
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new file mode 100644
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index 00000000000..90804c179a4
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--- /dev/null
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+++ b/Misc/NEWS.d/next/macOS/2026-08-05-02-02-33.gh-issue-153711.pO9fFb.rst
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@@ -0,0 +1,3 @@
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+On macOS, do not attempt to use the :manpage:`dup3(2)` and
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+:manpage:`pipe2(2)` system calls introduced in
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+macOS 27 to prevent problems when running on older systems.
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diff --git a/configure b/configure
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index 3f138a8ff11..e38f8d8ab32 100755
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--- a/configure
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+++ b/configure
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@@ -20400,13 +20400,7 @@ fi
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# header definition prevents usage - autoconf doesn't use the headers), or
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# raise an error if used at runtime. Force these symbols off.
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if test "$ac_sys_system" != "iOS" ; then
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- ac_fn_c_check_func "$LINENO" "dup3" "ac_cv_func_dup3"
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-if test "x$ac_cv_func_dup3" = xyes
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-then :
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- printf "%s\n" "#define HAVE_DUP3 1" >>confdefs.h
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-
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-fi
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-ac_fn_c_check_func "$LINENO" "getentropy" "ac_cv_func_getentropy"
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+ ac_fn_c_check_func "$LINENO" "getentropy" "ac_cv_func_getentropy"
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if test "x$ac_cv_func_getentropy" = xyes
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then :
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printf "%s\n" "#define HAVE_GETENTROPY 1" >>confdefs.h
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@@ -20417,12 +20411,6 @@ if test "x$ac_cv_func_getgroups" = xyes
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then :
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printf "%s\n" "#define HAVE_GETGROUPS 1" >>confdefs.h
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-fi
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-ac_fn_c_check_func "$LINENO" "pipe2" "ac_cv_func_pipe2"
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-if test "x$ac_cv_func_pipe2" = xyes
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-then :
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- printf "%s\n" "#define HAVE_PIPE2 1" >>confdefs.h
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-
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fi
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ac_fn_c_check_func "$LINENO" "system" "ac_cv_func_system"
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if test "x$ac_cv_func_system" = xyes
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@@ -20431,6 +20419,24 @@ then :
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fi
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+fi
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+# In addition, macOS introduced dup3 and pipe2 in macOS 27, late in the
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+# lifetime of this version of Python. Rather than adding weaklinking
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+# support for them, just continue to ignore them.
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+if test "$ac_sys_system" != "iOS" -a "$ac_sys_system" != "Darwin"; then
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+ ac_fn_c_check_func "$LINENO" "dup3" "ac_cv_func_dup3"
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+if test "x$ac_cv_func_dup3" = xyes
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+then :
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+ printf "%s\n" "#define HAVE_DUP3 1" >>confdefs.h
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+
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+fi
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+ac_fn_c_check_func "$LINENO" "pipe2" "ac_cv_func_pipe2"
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+if test "x$ac_cv_func_pipe2" = xyes
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+then :
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+ printf "%s\n" "#define HAVE_PIPE2 1" >>confdefs.h
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+
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+fi
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+
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC options needed to detect all undeclared functions" >&5
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diff --git a/configure.ac b/configure.ac
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index 9fdb671d44d..9e301b6ce6e 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -5280,7 +5280,13 @@ fi
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# header definition prevents usage - autoconf doesn't use the headers), or
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# raise an error if used at runtime. Force these symbols off.
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if test "$ac_sys_system" != "iOS" ; then
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- AC_CHECK_FUNCS([dup3 getentropy getgroups pipe2 system])
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+ AC_CHECK_FUNCS([getentropy getgroups system])
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+fi
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+# In addition, macOS introduced dup3 and pipe2 in macOS 27, late in the
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+# lifetime of this version of Python. Rather than adding weaklinking
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+# support for them, just continue to ignore them.
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+if test "$ac_sys_system" != "iOS" -a "$ac_sys_system" != "Darwin"; then
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+ AC_CHECK_FUNCS([dup3 pipe2])
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fi
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AC_CHECK_DECL([dirfd],
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--
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2.55.0.windows.3
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