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cmake:“添加自定义目标”+预生成在生成时未生效

target grpc dependencies cmake c++

0

Hind Forsum · 技术社区 · 7 年前

 examples.proto
 client.cpp
 server.cpp

我使用protoc命令为protobuf和grpc构建.cc/.h文件,CMakeLists.txt:

cmake_minimum_required(VERSION 2.8)
add_definitions(-std=c++11)
include_directories(.)

add_custom_target(protoFile
    PRE_BUILD
    COMMAND protoc --cpp_out=./ examples.proto
)
add_custom_target(protoSource
    PRE_BUILD
    COMMAND protoc --grpc_out=./ --plugin=protoc-gen-grpc=/usr/local/bin/grpc_cpp_plugin examples.proto
)
add_dependencies(protoSource protoFile)

add_library(protoCpp SHARED examples.grpc.pb.cc examples.pb.cc)
add_dependencies(protoCpp protoSource)

link_libraries(protoCpp protobuf grpc grpc++)
add_executable(client client.cpp)
add_executable(server server.cpp)

然后:

cmake .
-- Configuring done
CMake Error at CMakeLists.txt:15 (add_library):
Cannot find source file:

    examples.grpc.pb.cc

Tried extensions .c .C .c++ .cc .cpp .cxx .m .M .mm .h .hh .h++ .hm .hpp
.hxx .in .txx


CMake Error: CMake can not determine linker language for target: protoCpp
CMake Error: Cannot determine link language for target "protoCpp".
-- Generating done

如何解决这个问题?

0 回复 | 直到 7 年前