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

   1 From 64de7911d2938fc3601fec39c08008465b9d4f6f Mon Sep 17 00:00:00 2001
   2 From: Nick Cao <nickcao@nichi.co>
   3 Date: Tue, 7 Feb 2023 17:12:50 +0800
   4 Subject: [PATCH] python: enum: fix build for Python 3.11
   5 MIME-Version: 1.0
   6 Content-Type: text/plain; charset=UTF-8
   7 Content-Transfer-Encoding: 8bit
   8
   9 Python 3.9 introduced Py_SET_SIZE function to set size instead of
  10 relying on Py_SIZE() as a macro [3.9].
  11
  12 Python 3.10 started to encourage to use Py_SET_SIZE instead of
  13 assigning into return value of Py_SIZE [3.10].
  14
  15 Python 3.11 flips the switch, turn Py_SIZE into a function [3.11],
  16 thus Py_SIZE(obj) will be a rvalue. We need to use Py_SET_SIZE
  17 to set size now.
  18
  19 [3.9]: https://docs.python.org/3.9/c-api/structures.html#c.Py_SET_SIZE
  20 [3.10]: https://docs.python.org/3.10/c-api/structures.html#c.Py_SIZE
  21 [3.11]: https://docs.python.org/3.11/c-api/structures.html#c.Py_SIZE
  22
  23 Adapted from https://github.com/mchehab/zbar/pull/231
  24
  25 Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
  26 Signed-off-by: Nick Cao <nickcao@nichi.co>
  27 ---
  28  python/enum.c | 8 ++++++++
  29  1 file changed, 8 insertions(+)
  30
  31 diff --git a/python/enum.c b/python/enum.c
  32 index dfe1b1e..4833a20 100644
  33 --- a/python/enum.c
  34 +++ b/python/enum.c
  35 @@ -52,7 +52,11 @@ enumitem_new (PyTypeObject *type,
  36
  37      /* we assume the "fast path" for a single-digit ints (see longobject.c) */
  38      /* this also holds if we get a small_int preallocated long */
  39 +#if PY_VERSION_HEX >= 0x030900A4
  40 +    Py_SET_SIZE(&self->val, Py_SIZE(longval));
  41 +#else
  42      Py_SIZE(&self->val) = Py_SIZE(longval);
  43 +#endif
  44      self->val.ob_digit[0] = longval->ob_digit[0];
  45      Py_DECREF(longval);
  46  #else
  47 @@ -143,7 +147,11 @@ zbarEnumItem_New (PyObject *byname,
  48
  49      /* we assume the "fast path" for a single-digit ints (see longobject.c) */
  50      /* this also holds if we get a small_int preallocated long */
  51 +#if PY_VERSION_HEX >= 0x030900A4
  52 +    Py_SET_SIZE(&self->val, Py_SIZE(longval));
  53 +#else
  54      Py_SIZE(&self->val) = Py_SIZE(longval);
  55 +#endif
  56      self->val.ob_digit[0] = longval->ob_digit[0];
  57      Py_DECREF(longval);
  58
  59 --
  60 2.39.1
  61