[Slackbuilds-users] mkvtoolnix problem

[Jeremy Hansen]

This built fine on a clean fully patched install of 15.0.

Do you by chance have any of the optional dependencies listed in the
mkvtoolnix README installed? I can try again with any you have installed to
potentially confirm where the issue is.

Below libraries are bundled with the source code and configure will use
system version if they are usable:
  * avilib
  * librmff
  * nlohmann-json
  * pugixml (on SBo)
  * utf8-cpp
  * fmt (on SBo)
  * libebml (on SBo)
  * libmatroska (on SBo)

Installation of the above libraries are completely optional and internal
versions are well tested within the application.

Jeremy


On Sun, Mar 8, 2026, 12:44 PM Luveh Keraph <1.41421 at gmail.com> wrote:

> I have had mkvtoolnix running for some time. All of a sudden, I am getting
> the following:
>
> $ mkvtoolnix-gui
> mkvtoolnix-gui: error while loading shared libraries: libcmark.so.0.31.1:
> cannot open shared object file: No such file or directory
>
> libcmark.so is part of the cmark-0.31.2 package, which I updated on 21st
> February. So, I removed mkvtoolnix and tried to build it again. Alas, it
> won't:
>
>            CXX src/mkvtoolnix-gui/util/json_config_file.cpp
>            CXX src/mkvtoolnix-gui/util/kax_analyzer.cpp
>            CXX src/mkvtoolnix-gui/util/kax_info.cpp
>            CXX src/mkvtoolnix-gui/util/language_combo_box.cpp
>            CXX src/mkvtoolnix-gui/util/serial_worker_queue.cpp
>            CXX src/mkvtoolnix-gui/util/language_dialog.cpp
>            CXX src/mkvtoolnix-gui/util/language_display_widget.cpp
>            CXX src/mkvtoolnix-gui/util/media_player.cpp
>            CXX src/mkvtoolnix-gui/util/message_box.cpp
> src/mkvtoolnix-gui/util/media_player.cpp: In member function ‘void
> mtx::gui::Util::MediaPlayer::handleError(QMediaPlayer::Error)’:
> src/mkvtoolnix-gui/util/media_player.cpp:76:9: error: invalid use of
> incomplete type ‘class QDebug’
>    76 |   qDebug() << "MediaPlayer::handleError" << error <<
> p.errorReported;
> compilation terminated due to -Wfatal-errors.
>            CXX src/mkvtoolnix-gui/util/model.cpp
>            CXX src/mkvtoolnix-gui/util/modify_tracks_submenu.cpp
>            CXX src/mkvtoolnix-gui/util/recently_used_strings.cpp
>            CXX src/mkvtoolnix-gui/util/network_access_manager.cpp
>            CXX src/mkvtoolnix-gui/util/option_file.cpp
>            CXX src/mkvtoolnix-gui/util/process.cpp
>            CXX src/mkvtoolnix-gui/util/qgs_collapsible_group_box.cpp
>
> Any pointers on how to fix this would be much appreciated.
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