Can I create a static library from QML and use that with my executable?

rhvonlehe

I have a CMake Qt project. It used to be qmake, but it's being slowly converted to CMake. I am trying to put some commonly-used QML into a static library and then allowing applications to link against this static library. Compiling and linking works, but I get run-time errors saying e.g. module "BCControls" is not installed.

The CMake for the static library is:

add_library(BCControls STATIC)

qt5_add_resources(RESOURCES bccontrols.qrc)

target_sources(BCControls
    PRIVATE
    ${RESOURCES}
    )

The application's CMake is:

add_executable(PerMain)

qt5_add_resources(RESOURCES qml.qrc)

target_include_directories(PerMain PRIVATE .)

target_sources(PerMain
    PRIVATE
    ${RESOURCES}
    main.cpp
    PerMainApp.cpp
    )

target_link_libraries(PerMain
    PRIVATE
    Qt5::Core
    PrinterIF
    BQIF
    Properties
    AppData
    CommonBaseErrorDetectors
    BCControls
    )

Everything works fine if I put the bccontrols.qrc in the PerMain/CMakeLists.txt like this:

add_executable(PerMain)

qt5_add_resources(RESOURCES
    qml.qrc
    ../../QtCommon/BCControls/bccontrols.qrc
    )

target_include_directories(PerMain PRIVATE .)

target_sources(PerMain
    PRIVATE
    ${RESOURCES}
    main.cpp
    PerMainApp.cpp
    )

target_link_libraries(PerMain
    PRIVATE
    Qt5::Core
    PrinterIF
    BQIF
    Properties
    AppData
    CommonBaseErrorDetectors
#    BCControls
    )

Is it possible to use a static library in the way I'm trying to use it? If so, what am I missing?

Thanks!

sierdzio

When you are adding resources to a library, you need to init them manually.See the docs: https://doc.qt.io/qt-5/resources.html#using-resources-in-a-library

rhvonlehe

@sierdzio Thank you.