[packages/python-Cython] - added gc-py2-fix backported from git (fixes python2 crash in generated deallocation code); release

[qboosh]

commit 5a0fc37a3ff682e1a78efd3e48ff8e756cc3a94e
Author: Jakub Bogusz <qboosh at pld-linux.org>
Date:   Sat Sep 23 21:17:21 2023 +0200

    - added gc-py2-fix backported from git (fixes python2 crash in generated deallocation code); release 2

 cython-gc-py2-fix.patch | 28 ++++++++++++++++++++++++++++
 python-Cython.spec      |  4 +++-
 2 files changed, 31 insertions(+), 1 deletion(-)
---
diff --git a/python-Cython.spec b/python-Cython.spec
index 5308128..4b8587b 100644
--- a/python-Cython.spec
+++ b/python-Cython.spec
@@ -11,12 +11,13 @@ Summary:	Language for writing Python Extension Modules (Python 2.x version)
 Summary(pl.UTF-8):	Język służący do pisania modułów rozszerzających Pythona (wersja dla Pythona 2.x)
 Name:		python-%{module}
 Version:	0.29.36
-Release:	1
+Release:	2
 License:	Apache v2.0
 Group:		Libraries/Python
 #Source0Download: https://pypi.org/simple/cython/
 Source0:	https://files.pythonhosted.org/packages/source/c/cython/%{module}-%{version}.tar.gz
 # Source0-md5:	a4d0f9fbc9c137f1a88937cd40e8c5ee
+Patch0:		cython-gc-py2-fix.patch
 URL:		https://cython.org/
 BuildRequires:	rpmbuild(macros) >= 1.714
 %if %{with python2}
@@ -95,6 +96,7 @@ Pakiet zawierający przykładowe programy napisane w języku Cython.
 
 %prep
 %setup -q -n %{module}-%{version}
+%patch0 -p1
 
 %build
 %if %{with python2}
diff --git a/cython-gc-py2-fix.patch b/cython-gc-py2-fix.patch
new file mode 100644
index 0000000..e11d0b3
--- /dev/null
+++ b/cython-gc-py2-fix.patch
@@ -0,0 +1,28 @@
+From 039ef7c6242b3b6a18363ff22ead04f4e7cce676 Mon Sep 17 00:00:00 2001
+From: Stefan Behnel <stefan_ml at behnel.de>
+Date: Fri, 14 Jul 2023 21:46:56 +0200
+Subject: [PATCH] In Py2, the extension type might get cleaned up before the
+ objects at system exit, so we need an extra NULL check for the type pointer.
+
+---
+ Cython/Compiler/ModuleNode.py | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+diff --git a/Cython/Compiler/ModuleNode.py b/Cython/Compiler/ModuleNode.py
+index f98a0c15054..bf2cc63e1e1 100644
+--- a/Cython/Compiler/ModuleNode.py
++++ b/Cython/Compiler/ModuleNode.py
+@@ -1509,7 +1509,13 @@ class ModuleNode(Nodes.Node, Nodes.Block
+                 if base_type.scope and base_type.scope.needs_gc():
+                     code.putln("PyObject_GC_Track(o);")
+                 else:
++                    code.putln("#if PY_MAJOR_VERSION < 3")
++                    # Py2 lacks guarantees that the type pointer is still valid if we dealloc the object
++                    # at system exit time.  Thus, we need an extra NULL check.
++                    code.putln("if (!(%s) || PyType_IS_GC(%s)) PyObject_GC_Track(o);" % (base_cname, base_cname))
++                    code.putln("#else")
+                     code.putln("if (PyType_IS_GC(%s)) PyObject_GC_Track(o);" % base_cname)
++                    code.putln("#endif")
+ 
+             tp_dealloc = TypeSlots.get_base_slot_function(scope, tp_slot)
+             if tp_dealloc is not None:
================================================================

---- gitweb:

http://git.pld-linux.org/gitweb.cgi/packages/python-Cython.git/commitdiff/5a0fc37a3ff682e1a78efd3e48ff8e756cc3a94e