[php-src] Issue #12789: PHP 8.2.13 fails to build against libxml 2.12.1 and libxslt 1.1.39

Issue: https://github.com/php/php-src/issues/12789 Author: ricky-rockstar ### Description **The following build:** export PKG_CONFIG_PATH=/build/Python-3.12.0/lib/pkgconfig:/build/libntlm-1.6/lib64/pkgconfig:/build/gsasl-2.2.0/lib64/pkgconfig:/build/cyrus-sasl-2.1.28/lib64/pkgconfig:/build/krb5-1.21.2/lib64/pkgconfig:/build/icu4c-74_1/lib64/pkgconfig:/build/**libxml2-v2.12.1**/lib64/pkgconfig:/build/**libxslt-v1.1.39**/lib/pkgconfig:/build/openssl-3.2.0/lib64/pkgconfig:/build/nghttp2-1.58.0/lib/pkgconfig:/build/ruby-3.1.2/lib/pkgconfig:/build/libssh2-1.11.0/lib64/pkgconfig:/build/openssh-9.5p1/lib64/pkgconfig:/build/openldap-2.6.6/lib64/pkgconfig:/build/curl-8.4.0/lib64/pkgconfig:/build/libzip/lib64/pkgconfig:/build/freetype-2.13.2/lib64/pkgconfig:/build/libwebp-1.3.2/lib64/pkgconfig:/build/oniguruma-6.9.9/lib64/pkgconfig:/build/apr-1.7.4/lib64/pkgconfig:/build/apr-util-1.6.3/lib64/pkgconfig:/build/pcre-8.45/lib64/pkgconfig:/build/pcre2-10.42/lib64/pkgconfig ./configure --disable-all --prefix=/resources/php --bindir=/resources/php/bin --sbindir=/resources/php/sbin --with-config-file-path=/resources/php/lib/osDo-not-modify-this-php_ini --with-config-file-scan-dir=/configuration/php/ini --disable-debug --enable-opcache=shared --enable-huge-code-pages --enable-intl=shared --enable-ftp=shared --enable-session=shared --enable-xml=shared --with-apxs2=/resources/apache2/bin/apxs --with-layout=GNU --enable-filter=shared --with-zlib=shared --enable-simplexml=shared --enable-dom=shared --with-openssl=shared,/build/openssl-3.2.0 --with-readline=shared --with-iconv=shared --enable-phar=shared --enable-xmlwriter=shared --enable-xmlreader=shared --enable-bcmath=shared --with-bz2=shared --enable-calendar=shared --enable-ctype=shared --with-curl --enable-exif=shared --enable-fileinfo=shared --enable-ftp=shared --enable-gd --with-jpeg --with-webp --with-freetype --with-mysqli=shared --disable-phpdbg --enable-fpm=shared --with-fpm-systemd --with-fpm-acl --with-gettext=shared --with-libxml --with-libdir=lib64 --with-ldap=/build/openldap-2.6.6 --with-ldap-sasl=/build/openldap-2.6.6 --with-kerberos --enable-posix=shared --enable-soap=shared --enable-sockets=shared --with-tidy=shared,/build/libtidy --enable-tokenizer=shared --with-xsl=shared --enable-mbstring=shared --with-zip --with-external-pcre **fails with** /bin/sh /source/php-8.2.13/libtool --silent --preserve-dup-deps --tag CC --mode=compile cc -Imain/ -I/source/php-8.2.13/main/ -I/source/php-8.2.13/include -I/source/php-8.2.13/main -I/source/php-8.2.13 -I/source/php-8.2.13/ext/date/lib -I/build/libxml2-v2.12.1/include/libxml2 -I/build/icu4c-74_1/include -I/build/krb5-1.21.2/include -I/build/openssl-3.2.0/include -I/build/pcre2-10.42/include -I/build/curl-8.4.0/include -I/usr/include/libpng16 -I/build/libwebp-1.3.2/include -I/build/libwebp-1.3.2/include/webp -I/build/freetype-2.13.2/include/freetype2 -I/build/openldap-2.6.6/include -I/build/cyrus-sasl-2.1.28/include -I/build/oniguruma-6.9.9/include -I/source/php-8.2..13/ext/mbstring/libmbfl -I/source/php-8.2.13/ext/mbstring/libmbfl/mbfl -I/build/libtidy/include -I/build/libxslt-v1.1.39/include -I/build/libzip/include -I/source/php-8.2.13/TSRM -I/source/php-8.2.13/Zend -D_GNU_SOURCE -fno-common -Wstrict-prototypes -Wformat-truncation -Wlogical-op -Wduplicated-cond -Wno-clobbered -Wall -Wextra -Wno-strict-aliasing -Wno-unused-parameter -Wno-sign-compare -g -O2 -fvisibility=hidden -Wimplicit-fallthrough=1 -DZEND_SIGNALS -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1 -c main/internal_functions.c -o main/internal_functions.lo -MMD -MF main/internal_functions.dep -MT main/internal_functions.lo In file included from main/internal_functions.c:27: /source/php-8.2.13/ext/libxml/php_libxml.h: In function ?php_libxml_sanitize_parse_ctxt_options?: /source/php-8.2.13/ext/libxml/php_libxml.h:148:6: error: dereferencing pointer to incomplete type ?xmlParserCtxt? {aka ?struct _xmlParserCtxt?} ctxt->loadsubset = 0; ^~ make: *** [Makefile:2440: main/internal_functions.lo] Error 1 **But replacing** libxml2-v2.12.1 with libxml2-v2.9.14 _AND_ libxslt-v1.1.39 with libxslt-v1..1.35 Resolves the problem and PHP 8.2.13 builds correctly. **So I have the following questions:** 1. Is this intentional? 2. If so, what is the most recent version of libxml2 and libxslt that PHP 8..2.13 supports? 3. Is there any intention to support libxml2-v2.12.1? (as it introduces some nice sounding memory behaviour) Thank you ### PHP Version PHP 8.2.13 ### Operating System Oracle Unbreakable Linux