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  1. Qt
  2. QTBUG-125329

Grpc generators: fix Policy CMP0071

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    • Icon: Bug Bug
    • Resolution: Invalid
    • Icon: P2: Important P2: Important
    • None
    • 6.7.0, 6.8.0 FF
    • Build System: CMake, GRPC
    • None
    • 0c1b25107 (dev), 02344f5c9 (6.8), 19c5ae8a0 (6.7)

      When using the generators in a minimal setup like this:

      cmake_minimum_required(VERSION 3.9)
project(GrpcPreset LANGUAGES CXX)

set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

# cmake_policy(SET CMP0071 NEW)
find_package(Qt6 REQUIRED COMPONENTS Grpc)
qt_standard_project_setup()

qt_add_executable(qtclient src/qtclient.cpp)

qt_add_protobuf(qtclient
    PROTO_FILES ${proto_file}
    PROTO_INCLUDES ${proto_imp}
    OUTPUT_DIRECTORY "${proto_out}/qt"
)

qt_add_grpc(qtclient CLIENT
    PROTO_FILES ${proto_file}
    PROTO_INCLUDES ${proto_imp}
    OUTPUT_DIRECTORY "${proto_out}/qt"
)

target_link_libraries(qtclient PRIVATE Qt6::Grpc)
target_include_directories(qtclient
    PUBLIC "$<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/include>"
)

      then cmake complains about the CMP0071 policy as it will exclude the generated source files for compatibility. This should happen implicitly so that users don't have to set the policy.

      ❯ cmake --version
      cmake version 3.29.2

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            semlanik Alexey Edelev
            dennisoberst Dennis Oberst
            Vladimir Minenko Vladimir Minenko
            Alex Blasche Alex Blasche
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              Created:
              Updated:
              Resolved:

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