From 6d2adcef387aea2785739ace4e5838a43cb50a67 Mon Sep 17 00:00:00 2001
From: rwx403335 <renhongxun@huawei.com>
Date: Tue, 9 Aug 2022 14:33:23 +0800
Subject: [PATCH] sync changes from master

---
 ...und-libxml2-bug-in-affected-versions.patch | 56 +++++++++++++++++++
 python-lxml.spec                              | 11 +++-
 2 files changed, 65 insertions(+), 2 deletions(-)
 create mode 100644 backport-Work-around-libxml2-bug-in-affected-versions.patch

diff --git a/backport-Work-around-libxml2-bug-in-affected-versions.patch b/backport-Work-around-libxml2-bug-in-affected-versions.patch
new file mode 100644
index 0000000..5000072
--- /dev/null
+++ b/backport-Work-around-libxml2-bug-in-affected-versions.patch
@@ -0,0 +1,56 @@
+From c742576c105f40fc8b754fcae56fee4aa35840a3 Mon Sep 17 00:00:00 2001
+From: Stefan Behnel <stefan_ml@behnel.de>
+Date: Tue, 19 Jul 2022 08:25:20 +0200
+Subject: [PATCH] Work around libxml2 bug in affected versions that failed to
+ reset the namespace count in the parser context.
+
+See https://gitlab.gnome.org/GNOME/libxml2/-/issues/378
+---
+ src/lxml/includes/xmlparser.pxd | 1 +
+ src/lxml/parser.pxi             | 3 +++
+ src/lxml/tests/test_etree.py    | 3 +--
+ 3 files changed, 5 insertions(+), 2 deletions(-)
+
+diff --git a/src/lxml/includes/xmlparser.pxd b/src/lxml/includes/xmlparser.pxd
+index a196e34..45acfc8 100644
+--- a/src/lxml/includes/xmlparser.pxd
++++ b/src/lxml/includes/xmlparser.pxd
+@@ -144,6 +144,7 @@ cdef extern from "libxml/parser.h":
+         void* userData
+         int* spaceTab
+         int spaceMax
++        int nsNr
+         bint html
+         bint progressive
+         int inSubset
+diff --git a/src/lxml/parser.pxi b/src/lxml/parser.pxi
+index f5baf29..f0c8c6b 100644
+--- a/src/lxml/parser.pxi
++++ b/src/lxml/parser.pxi
+@@ -569,6 +569,9 @@ cdef class _ParserContext(_ResolverContext):
+                 self._c_ctxt.disableSAX = 0 # work around bug in libxml2
+             else:
+                 xmlparser.xmlClearParserCtxt(self._c_ctxt)
++                # work around bug in libxml2 [2.9.10 .. 2.9.14]:
++                # https://gitlab.gnome.org/GNOME/libxml2/-/issues/378
++                self._c_ctxt.nsNr = 0
+ 
+     cdef int prepare(self, bint set_document_loader=True) except -1:
+         cdef int result
+diff --git a/src/lxml/tests/test_etree.py b/src/lxml/tests/test_etree.py
+index 8bf82c0..0339796 100644
+--- a/src/lxml/tests/test_etree.py
++++ b/src/lxml/tests/test_etree.py
+@@ -1491,8 +1491,7 @@ class ETreeOnlyTestCase(HelperTestCase):
+             # This would be the expected result, because there was no namespace
+             pass
+         else:
+-            # This is a bug in libxml2
+-            assert not ns, repr(ns)
++            assert False, "Found unexpected namespace '%s'" % ns
+ 
+     def test_itertext_comment_pi(self):
+         # https://bugs.launchpad.net/lxml/+bug/1844674
+-- 
+1.8.3.1
+
diff --git a/python-lxml.spec b/python-lxml.spec
index dc61312..f63211a 100644
--- a/python-lxml.spec
+++ b/python-lxml.spec
@@ -7,12 +7,14 @@ The latest release works with all CPython versions from 2.7 to 3.7.
 
 Name:           python-%{modname}
 Version:        4.9.1
-Release:        1
+Release:        2
 Summary:        XML processing library combining libxml2/libxslt with the ElementTree API
 License:        BSD
 URL:            https://github.com/lxml/lxml
 Source0:        %_sourcedir/lxml-%{version}.tar.gz
 
+Patch6000:      backport-Work-around-libxml2-bug-in-affected-versions.patch
+
 BuildRequires:  gcc libxml2-devel libxslt-devel
 
 %description %{_description}
@@ -29,6 +31,8 @@ BuildRequires:  python3-devel python3-setuptools python3-Cython
 
 %prep
 %autosetup -n %{modname}-%{version} -p1
+# Remove pregenerated Cython C sources
+find -type f -name '*.c' -print -delete
 
 %build
 export WITH_CYTHON=true
@@ -49,7 +53,10 @@ make test3
 %files help
 %doc README.rst src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/readme.txt
 
-%changelog 
+%changelog
+* Tue Aug 09 2022 renhongxun <renhongxun@h-partners.com> - 4.9.1-2
+- sync changes from master
+
 * Mon Jul 25 2022 liksh <liks11@chinaunicom.cn> - 4.9.1-1
 - Upgrade to 4.9.1 for openstack yoga
 
-- 
Gitee