SUMMARY CMake Error: The following variables are used in this project, but they are set to NOTFOUND. Please set them or make sure they are set and tested correctly in the CMake files: LIBAPPIMAGE_LIBRARIES linked by target "appimagethumbnail" in directory /build/kio-extras/src/kio-extras-18.12.2/thumbnail -- Configuring incomplete, errors occurred! EXPECTED RESULT SOFTWARE/OS VERSIONS Windows: MacOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION
Recent libappimage releasee tried to be more cmake-using consumer friendly by improving the imported target in the provided cmake config files, sadly though regressed with the old variables. Fix is on their way though, so hopefully a new version will fix this soon: https://github.com/AppImage/libappimage/pull/55 On our side there is https://phabricator.kde.org/D18611 though that one sadly uncovered another issue, one fix proposal currently discussed as https://github.com/AppImage/libappimage/pull/58 Myself no time reserved until upcoming WE. CC: libappimage devs :)
Released new version of libappimage (v0.1.9) which contains the changes from the mentioned pull request.