From: Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com>
Date: Tue, 21 Jul 2026 20:02:34 +0000 (+0200)
Subject: [3.15] gh-154389: Do not use uuid_create() on OpenBSD (GH-154390) (GH-154391)
X-Git-Url: http://git.ipfire.org/index.cgi?a=commitdiff_plain;h=refs%2Fheads%2F3.15;p=thirdparty%2FPython%2Fcpython.git

[3.15] gh-154389: Do not use uuid_create() on OpenBSD (GH-154390) (GH-154391)

Like NetBSD, OpenBSD generates version 4 UUIDs in uuid_create(), so it
cannot be used for uuid.uuid1().
(cherry picked from commit c76fb912070389e0fbad3bf4eab066cd5da931b9)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
---

diff --git a/Misc/NEWS.d/next/Library/2026-07-21-20-34-05.gh-issue-154389.DlTiii.rst b/Misc/NEWS.d/next/Library/2026-07-21-20-34-05.gh-issue-154389.DlTiii.rst
new file mode 100644
index 000000000000..eb2e2edc2d72
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2026-07-21-20-34-05.gh-issue-154389.DlTiii.rst
@@ -0,0 +1,3 @@
+Fix :func:`uuid.uuid1` on OpenBSD:
+it returned a version 4 UUID,
+because ``uuid_create()`` generates random UUIDs on this platform.
diff --git a/configure b/configure
index af350fbb132d..dd506e689951 100755
--- a/configure
+++ b/configure
@@ -15162,9 +15162,10 @@ then :
 
 fi
 
-# gh-124228: While the libuuid library is available on NetBSD, it supports only UUID version 4.
+# gh-124228: While the libuuid library is available on NetBSD and OpenBSD,
+# it supports only UUID version 4.
 # This restriction inhibits the proper generation of time-based UUIDs.
-if test "$ac_sys_system" = "NetBSD"; then
+if test "$ac_sys_system" = "NetBSD" || test "$ac_sys_system" = "OpenBSD"; then
   have_uuid=missing
   printf "%s\n" "#define HAVE_UUID_H 0" >>confdefs.h
 
diff --git a/configure.ac b/configure.ac
index a8bd6b884a13..73d0bb48ea8f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4003,9 +4003,10 @@ AS_VAR_IF([ac_cv_have_uuid_generate_time_safe], [yes], [
   AC_DEFINE([HAVE_UUID_GENERATE_TIME_SAFE], [1])
 ])
 
-# gh-124228: While the libuuid library is available on NetBSD, it supports only UUID version 4.
+# gh-124228: While the libuuid library is available on NetBSD and OpenBSD,
+# it supports only UUID version 4.
 # This restriction inhibits the proper generation of time-based UUIDs.
-if test "$ac_sys_system" = "NetBSD"; then
+if test "$ac_sys_system" = "NetBSD" || test "$ac_sys_system" = "OpenBSD"; then
   have_uuid=missing
   AC_DEFINE([HAVE_UUID_H], [0])
 fi