Hey, > This seems to be coming from > /usr/lib/x86_64-linux-gnu/cmake/Qt6Qml/Qt6QmlTargets.cmake > in qt6-declarative-dev.
ACK this file has the missing path. I started to investigate it in kf6-kcmutils a bit and the problem is the macro qt6_add_qml_module. the usage in autotests/kconfig_compiler/CMakeLists.txt triggers it: qt6_add_qml_module(test15qml URI "org.kde.kconfig.test15" QML_FILES Test15Qml.qml) it boils down to the macro _qt_internal_target_enable_qmlcachegen that includes Qt6::QmlPrivate, that reads Qt6QmlTargets.cmake. (As workaround I can install qt6-declarative-private-dev and it compiles). On the other side the macro is used successfully in src/qml/CMakeLists.txt via ecm_add_qml_module ( but no qml files are added) and this compiles without any error: qt6_add_qml_module(KF6ConfigQml URI "org.kde.config") Than I tested to downgrade cmake to testing: The issue does not happen, when I use cmake 3.10.5. 3.31.0 does care about non existing directories in INTERFACE_INCLUDE_DIRECTORIES 3.30.5 do not care about non-existing directories. Regards, hefee
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