[Slackbuilds-users] mkvtoolnix problem

[fourtysixandtwo]

I ran into this problem a couple weeks ago.  My solution was to
upgrade mkvtoolnix to 97.0 locally.

A note in the README is surely warranted if not fsleg's fix.

On Sun, Mar 8, 2026 at 2:32 PM fsLeg via SlackBuilds-users
<slackbuilds-users at slackbuilds.org> wrote:
>
> Can confirm, just had the same error trying to recompile mkvtoolnix on
> my 15.0 with qt6 installed. Looking at output, it tries to link against
> qt6 instead of qt5, and the output of `./configure --help` confirms that
> by default mkvtoolnix only uses qt5 as a fallback if qt6 is not found.
>
> You need to add `--disable-qt6` option to configure in the SlackBuild to
> force building against qt5. Just tried it and it compiled for me,
> although my system is non-standard as I have packages from testing/
> installed, namely graphics-updates and binutils-gcc-glibs, so I'm not
> sure if it helps with a vanilla system.
>
> On 3/8/26 22:30, Luveh Keraph wrote:
> > For what it is worth, I was able to build it on a different 15.0 system.
> > A major difference is that Qt6 is not installed in this system.
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