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  1. Qt
  2. QTBUG-88172

Reconfiguration of static qtdeclarative builds rebuilds some files

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Details

    • Task
    • Resolution: Done
    • P3: Somewhat important
    • None
    • None
    • Build System: CMake

    Description

      If one doesn't change touch any files at all after a full build of qtdeclarative, and does a reconfiguration of qtdeclarative / qqc2, new qmldir files will be written with an updated timestamp, which will cause some rcc calls and recompilation. Curiously no relinking. Also doesn't happen with a shared Qt build.

      ninja explain: restat of output src/imports/qtqml/.rcc/qrc_QtQml_qmldir.cpp older than most recent input src/imports/qtqml/qmldir (1604423952000000000 vs 1604423958000000000)
ninja explain: src/imports/qtqml/.rcc/qrc_QtQml_qmldir.cpp is dirty
ninja explain: src/imports/qtqml/.rcc/qrc_QtQml_qmldir.cpp is dirty
ninja explain: src/imports/qtqml/CMakeFiles/qmlplugin_resources_QtQml_qmldir.dir/.rcc/qrc_QtQml_qmldir.cpp.o is dirty
ninja explain: src/imports/qtqml/qmlplugin_resources_QtQml_qmldir is dirty
ninja explain: src/imports/qtqml/all is dirty
ninja explain: restat of output src/imports/models/.rcc/qrc_QtQml_Models_qmldir.cpp older than most recent input src/imports/models/qmldir (1604423952000000000 vs 1604423958000000000)
ninja explain: src/imports/models/.rcc/qrc_QtQml_Models_qmldir.cpp is dirty
ninja explain: src/imports/models/.rcc/qrc_QtQml_Models_qmldir.cpp is dirty
ninja explain: src/imports/models/CMakeFiles/modelsplugin_resources_QtQml_Models_qmldir.dir/.rcc/qrc_QtQml_Models_qmldir.cpp.o is dirty
ninja explain: src/imports/models/modelsplugin_resources_QtQml_Models_qmldir is dirty
ninja explain: src/imports/models/all is dirty
ninja explain: restat of output src/imports/labsmodels/.rcc/qrc_Qt_labs_qmlmodels_qmldir.cpp older than most recent input src/imports/labsmodels/qmldir (1604423952000000000 vs 1604423958000000000)
ninja explain: src/imports/labsmodels/.rcc/qrc_Qt_labs_qmlmodels_qmldir.cpp is dirty
ninja explain: src/imports/labsmodels/.rcc/qrc_Qt_labs_qmlmodels_qmldir.cpp is dirty
ninja explain: src/imports/labsmodels/CMakeFiles/labsmodelsplugin_resources_Qt_labs_qmlmodels_qmldir.dir/.rcc/qrc_Qt_labs_qmlmodels_qmldir.cpp.o is dirty
ninja explain: src/imports/labsmodels/labsmodelsplugin_resources_Qt_labs_qmlmodels_qmldir is dirty
ninja explain: src/imports/labsmodels/all is dirty

      The problem is that we use multiple file(WRITE) commands as commands like qt6_add_qml_module and qt6_target_qml_files are called, because we don't have the full information to issue one single configure_file() call.

      We can probably fix it with our internal scope finalizers for Qt builds, but we'd have to wait for official support for scope finalizers to be able to do it for public facing projects.

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          depends on

          User Story - Created by Jira Software - do not edit or delete. Issue type for a user story. QTBUG-77377 Add CMake feature for a function to be called when a target is "closed" (scope finalizers)

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-88004 Making a change to a CMakeLists.txt file in qtquickcontrols2 results in dependent modules being built

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
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              semlanik Alexey Edelev
              alexandru.croitor Alexandru Croitor
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                Created:
                Updated:
                Resolved:

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