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  1. Qt
  2. QTBUG-111760

target_link_libraries(foo INTERFACE Qt::Core) fails for interface libs with CMake < 3.19 on Windows

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Details

    • Bug
    • Resolution: Unresolved
    • P2: Important
    • None
    • 6.5.0 Beta3
    • Build System: CMake
    • None
    • Windows

    Description

      See https://codereview.qt-project.org/c/qt/qtquickeffectmaker/+/454986/4/src/doc/CMakeLists.txt#2

      add_library(QtQuickEffectMakerDoc INTERFACE)
target_link_libraries(QtQuickEffectMakerDoc INTERFACE Qt::Core)

      results in this error during the generation phase with CMake 3.16 on Windows:

      -- Configuring done
CMake Error at qtquickeffectmaker/src/doc/CMakeLists.txt:1 (add_library):
  INTERFACE_LIBRARY targets may only have whitelisted properties.  The
  property "WIN32_EXECUTABLE" is not allowed.

      The culprit is this bit in the interface of QtCore:

          if(WIN32)
        list(APPEND entrypoint_conditions "$<BOOL:$<TARGET_PROPERTY:WIN32_EXECUTABLE>>")
    endif()

      even though it's wrappend in an AND condition that checks whether the target's type is EXECUTABLE...

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          For Gerrit Dashboard: QTBUG-111760
          # Subject Branch Project Status CR V
          483430,2 Add a workaround for CMake<=3.18 issue with INTERFACE_LIBRARY on Windows dev qt/qtbase Status: NEW 0 0

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              mrmsdbdl Amir Masoud Abdol
              jbornema Joerg Bornemann
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              Dates

                Created:
                Updated:

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