Missing libxml2 in PyQt binaries

[Florian Bruhin]

On 2025-05-06T10:39:55 , Phil Thompson wrote:
> 
> On 06/05/2025 08:48, Florian Bruhin wrote:
> > Hey,
> > 
> > QtWebEngine seems to require libxml2.so.2.
> > 
> > However, libxml2 v2.14 was released recently, bumping the soname:
> > https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.14.0
> > 
> >     Binary compatibility is restricted to versions 2.14 or newer.
> >     On ELF systems, the soname was bumped from libxml2.so.2 to 
> > libxml2.so.16.
> > 
> > Due to that, I'm now unable to import QtWebEngine from PyQt6 wheels on
> > Archlinux:
> > 
> >     $ python -c "from PyQt6 import QtWebEngineCore"
> >     [...]
> >     ImportError: libxml2.so.2: cannot open shared object file: No such
> > file or directory
> > 
> > As a workaround, I uploaded libxml2.13 to the AUR, which can coexist
> > with libxml2 (2.14), because it installs into /opt and then symlinks to
> > /usr/lib/libxml2.so.2: https://aur.archlinux.org/packages/libxml2.13
> > 
> > But probably libxml2.so.2 should be shipped with the binaries?
> 
> Maybe but only if it becomes a wider problem when I'd expect the Qt 
> online installer to include the relevant libraries and I would include 
> those. This is what happens with the ICU libraries.

Makes sense. I opened a Qt bug report:
https://bugreports.qt.io/browse/QTBUG-136637

Florian
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