Upgraded from bullseye to bookworm and got httpd error because of libxml2

[wila]

Hi,

Finally got to upgrade some of my servers from debian 11 to debian 12 and that was a success.
However I bumped into a pecularity.

First off I had some issues upgrading, so I rolled back and figured to clean up my install via list removals.
eg:

da build list_removals
Pure-FTPd: installed, but not enabled in options.conf
        da build remove_pureftpd
imagemagick: deprecated, in favor of system imagemagick
        da build remove_imagemagick
old icu in /usr/local: custom library might mask system libraries, not needed anymore
        da build remove_old_local icu
old freetype in /usr/local: custom library might mask system libraries, not needed anymore
        da build remove_old_local freetype
old libsrs_alt in /usr/local: custom library might mask system libraries, not needed anymore
        da build remove_old_local libsrs_alt
old libxslt in /usr/local: custom library might mask system libraries, not needed anymore
        da build remove_old_local libxslt
old libxml2 in /usr/local: custom library might mask system libraries, not needed anymore
        da build remove_old_local libxml2

If you want to remove all the suggested programs above, run: da build remove_items

I ran each da build remove_ command..
The one that matters here is the libxml2 one.

# da build remove_old_local libxml2
creating backup for local package 'libxml2' in '/usr/local/directadmin/custombuild/tmp/usr_local_libxml2_backup.tar.gz'
Removing: /usr/local/include/libxml2
Removing: /usr/local/share/aclocal/libxml.m4
Removing: /usr/local/share/man/man3/libxml.3
Removing: /usr/local/share/man/man1/xmllint.1
Removing: /usr/local/share/man/man1/xml2-config.1
Removing: /usr/local/share/man/man1/xmlcatalog.1
Removing: /usr/local/share/doc/libxml2-2.9.10
Removing: /usr/local/share/gtk-doc/html/libxml2
Removing: /usr/local/lib/cmake/libxml2
Removing: /usr/local/lib/pkgconfig/libxml-2.0.pc
Removing: /usr/local/lib/libxml2.a
Removing: /usr/local/lib/libxml2.la
Removing: /usr/local/lib/libxml2.so
Removing: /usr/local/lib/libxml2.so.2
Removing: /usr/local/lib/libxml2.so.2.9.10
Removing: /usr/local/lib/xml2Conf.sh
Removing: /usr/local/bin/xml2-config
Removing: /usr/local/bin/xmlcatalog
Removing: /usr/local/bin/xmllint

local package 'libxml2' is removed, it can be restored with command:
        da build restore_old_local libxml2

That worked well.. until the reboot.
After the reboot I noticed that the httpd service no longer ran, so I first recompiled httpd again.
and... it refused to start.

mod_htscanner2 has been installed successfully.
Restarting apache.
Job for httpd.service failed because the control process exited with error code.
See "systemctl status httpd.service" and "journalctl -xe" for details.

easy enough to check..

# systemctl status httpd.service
line 1 of /etc/httpd/conf/extra/httpd-modsecurity.conf: Cannot load /usr/local/lib/libxml2.so

Did a

# whereis libxml2.so
libxml2: /usr/lib/x86_64-linux-gnu/libxml2.a /usr/lib/x86_64-linux-gnu/libxml2.so /usr/include/libxml2

Then replaced the line:

#LoadFile /usr/local/lib/libxml2.so
LoadFile /usr/lib/x86_64-linux-gnu/libxml2.so

# systemctl restart httpd.service

Problem solved...
or so I thought until I ran a

da build rewrite_confs

as that puts back the old line:
LoadFile /usr/local/lib/libxml2.so
into the file /etc/httpd/conf/extra/httpd-modsecurity.conf instead of the imo correct line:
LoadFile /usr/lib/x86_64-linux-gnu/libxml2.so

How-to resolve that (except from going back to the original libxml2 file) ?

Thanks