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Michael Paquier d24a96ce2c Fix incompatibility with libxml2 >= 2.14 
libxml2 has deprecated the members of xmlBuffer, and it is recommended
to access them with dedicated routines.  We have only one case in the
tree where this shows an impact: xml2/xpath.c where "content" was
getting directly accessed.  The rest of the code looked fine, checking
the PostgreSQL code with libxml2 close to the top of its "2.14" branch.

xmlBufferContent() exists since year 2000 based on a check of the
upstream libxml2 tree, so let's switch to it.

Like 400928b83b, backpatch all the way down as this can have an impact
on all the branches already released once newer versions of libxml2 get
more popular.

Reported-by: Walid Ibrahim <walidib@amazon.com>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/aGdSdcR4QTjEHX6s@paquier.xyz
Backpatch-through: 13
2025-07-07 08:54:39 +09:00
..
expected Prevent access to external files/URLs via contrib/xml2's xslt_process(). 2012-08-14 18:31:18 -04:00
sql Prevent access to external files/URLs via contrib/xml2's xslt_process(). 2012-08-14 18:31:18 -04:00
.gitignore Support "make check" in contrib 2011-04-25 22:27:11 +03:00
Makefile Remove support for upgrading extensions from "unpackaged" state. 2020-02-19 16:59:14 -05:00
meson.build Update copyright for 2023 2023-01-02 15:00:37 -05:00
xml2--1.0--1.1.sql Update xml2 extension for parallel query. 2016-06-14 15:49:32 -04:00
xml2--1.1.sql Update xml2 extension for parallel query. 2016-06-14 15:49:32 -04:00
xml2.control Remove support for upgrading extensions from "unpackaged" state. 2020-02-19 16:59:14 -05:00
xpath.c Fix incompatibility with libxml2 >= 2.14 2025-07-07 08:54:39 +09:00
xslt_proc.c xml2: Replace deprecated routines with recommended ones 2024-04-16 12:25:48 +09:00