Dependency on xkbcommon

[Maxim Kartashev]

Thanks, Jonas!

It seems that libxkbcommon.so *should* be there, I'm going to verify that
again myself. It might be that by default it is not in the path known to
the dynamic loader, which would explain dlopen() failing on those systems.

On Tue, Nov 22, 2022 at 5:24 PM Jonas Ådahl <jadahl at redhat.com> wrote:

> On Tue, Nov 22, 2022 at 05:15:30PM +0300, Maxim Kartashev wrote:
> > Hi All,
> >
> > In the current version of the "pure" Wayland toolkit I introduced a
> "soft"
> > dependency on libxkbcommon.so that is dlopened at run time to convert
> > keystrokes into symbols. However, we have soon discovered that many
> modern
> > distros don't have the library installed by default.
>
> How did you discover this? I would assume all distributions that
> supports Wayland having libxkbcommon installed by default, as
> practically all Wayland clients that does keyboard input make use of it.
>
> >
> > As far as I can tell, gdk links with it statically. I wonder how
> practical
> > is it for OpenJDK to follow suit (xkbcommon is licensed under derivatives
> > of the MIT license)? Or else bring in the source code into OpenJDK? Any
> > other ideas?
>
> GDK doesn't link it statically. This is how it looks on my system:
>
> $ ldd /usr/lib64/libgdk-3.so.0 | grep xkbcommon
>         libxkbcommon.so.0 => /lib64/libxkbcommon.so.0 (0x00007f160b2e7000)
> $ ldd /usr/lib64/libgtk-4.so | grep xkbcommon
>         libxkbcommon.so.0 => /lib64/libxkbcommon.so.0 (0x00007f7aaae8c000)
>
> The same applies to Qt6:
>
> $ ldd /usr/lib64/libQt6WaylandClient.so.6 | grep xkbcommon
>         libxkbcommon.so.0 => /lib64/libxkbcommon.so.0 (0x00007fc7f14a1000)
>
> So I suggest to link to it dynamically, not statically.
>
>
> Jonas
>
>
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