c++ - 预先构建grpc和find_package

Question

我想将我的应用程序与预构建的gRPC 1.30链接。
我想要的目录结构:

- project root
  - external
    + gRPC
  - src
    ... my source code here ...

我已经建立了gRPC:

git clone --recurse-submodules -b v1.30.0 https://github.com/grpc/grpc
cmake -DgRPC_INSTALL=ON -DgRPC_BUILD_TESTS=OFF -DCMAKE_INSTALL_PREFIX="D:/grpc" -A x64 ..
cmake --build . --target install --config Release

D:/grpc中生成的文件的最终结构很奇怪...最顶层的cmake文件夹包含protobuf-config.cmake，而grpc的文件夹位于D:/ grpc / lib / cmake / grpc。但是，只要它起作用，我就不在乎。
这是在我的项目的CMakeLists.txt中。

set(CMAKE_PREFIX_PATH ${EXTERNAL_DIRECTORY}
    ${EXTERNAL_DIRECTORY}/grpc/ 
    ${EXTERNAL_DIRECTORY}/grpc/cmake/ 
    ${CMAKE_PREFIX_PATH})

find_package(Protobuf CONFIG REQUIRED)
find_package(gRPC CONFIG REQUIRED)

add_executable(test main.cpp)
target_link_libraries(test PRIVATE grpc::grpc++)

最后，这是我尝试构建它时遇到的错误:

  Target "test" links to target "Threads::Threads" but the target was
  not found.  Perhaps a find_package() call is missing for an IMPORTED
  target, or an ALIAS target is missing?

我被困在这里。

Answer 1

我只是添加:

find_package(Threads REQUIRED)