FTBFS due to an upstream bug

Description:

xml.c: In function ‘zbx_xml_to_json’:
xml.c:743:44: error: ‘XML_PARSE_NOBLANKS’ undeclared (first use in this function)
  743 |         if (FAIL == zbx_open_xml(xml_data, XML_PARSE_NOBLANKS, -1, (void **)&doc, (void **)&node, errmsg))
      |                                            ^~~~~~~~~~~~~~~~~~
xml.c:743:44: note: each undeclared identifier is reported only once for each function it appears in
xml.c: In function ‘zbx_json_to_xml’:
xml.c:955:47: error: ‘XML_DEFAULT_VERSION’ undeclared (first use in this function)
  955 |         if (NULL == (doc = xmlNewDoc(BAD_CAST XML_DEFAULT_VERSION)))
      |                                               ^~~~~~~~~~~~~~~~~~~
xml.c:957:35: warning: assignment discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
  957 |                 if (NULL != (pErr = xmlGetLastError()))
      |                                   ^

It is a bug in zabbix, and seems to still exist in v6.4.9. Same issue and solution here.

Additional info:

• package version(s): 6.4.8-2
• link to upstream bug report, if any: https://support.zabbix.com/browse/ZBX-23738

Steps to reproduce:

extra-x86_64-build

added priority3-normal severity4-low statusunconfirmed labels

assigned to @morganamilo, @toolybird, @antiz, and @thurstylark

added statusconfirmed label and removed statusunconfirmed label

assigned to @bluewind and unassigned @morganamilo, @toolybird, and @thurstylark

Please also be aware there is approx' a zillion pkgs that fail to build with latest libxml2. We don't want bug reports for all of them. Please send fixes upstream.

closed

Just for info, the patch mentioned here in the upstream issue worked.
While waiting for it to be included in an upstream release, I backported it into our zabbix package and built v6.4.9 with it.

added resolutioncompleted label