depot/third_party/nixpkgs/pkgs/development/python-modules/python-zbar/0001-python-enum-fix-build-for-Python-3.11.patch

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From 64de7911d2938fc3601fec39c08008465b9d4f6f Mon Sep 17 00:00:00 2001
From: Nick Cao <nickcao@nichi.co>
Date: Tue, 7 Feb 2023 17:12:50 +0800
Subject: [PATCH] python: enum: fix build for Python 3.11
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Python 3.9 introduced Py_SET_SIZE function to set size instead of
relying on Py_SIZE() as a macro [3.9].
Python 3.10 started to encourage to use Py_SET_SIZE instead of
assigning into return value of Py_SIZE [3.10].
Python 3.11 flips the switch, turn Py_SIZE into a function [3.11],
thus Py_SIZE(obj) will be a rvalue. We need to use Py_SET_SIZE
to set size now.
[3.9]: https://docs.python.org/3.9/c-api/structures.html#c.Py_SET_SIZE
[3.10]: https://docs.python.org/3.10/c-api/structures.html#c.Py_SIZE
[3.11]: https://docs.python.org/3.11/c-api/structures.html#c.Py_SIZE
Adapted from https://github.com/mchehab/zbar/pull/231
Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Nick Cao <nickcao@nichi.co>
---
python/enum.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/python/enum.c b/python/enum.c
index dfe1b1e..4833a20 100644
--- a/python/enum.c
+++ b/python/enum.c
@@ -52,7 +52,11 @@ enumitem_new (PyTypeObject *type,
/* we assume the "fast path" for a single-digit ints (see longobject.c) */
/* this also holds if we get a small_int preallocated long */
+#if PY_VERSION_HEX >= 0x030900A4
+ Py_SET_SIZE(&self->val, Py_SIZE(longval));
+#else
Py_SIZE(&self->val) = Py_SIZE(longval);
+#endif
self->val.ob_digit[0] = longval->ob_digit[0];
Py_DECREF(longval);
#else
@@ -143,7 +147,11 @@ zbarEnumItem_New (PyObject *byname,
/* we assume the "fast path" for a single-digit ints (see longobject.c) */
/* this also holds if we get a small_int preallocated long */
+#if PY_VERSION_HEX >= 0x030900A4
+ Py_SET_SIZE(&self->val, Py_SIZE(longval));
+#else
Py_SIZE(&self->val) = Py_SIZE(longval);
+#endif
self->val.ob_digit[0] = longval->ob_digit[0];
Py_DECREF(longval);
--
2.39.1