如何通过linux上的cmake链接谷歌protobuf库?

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我是这样做的:

find_package(Boost COMPONENTS system filesystem REQUIRED)                                                    
find_package(ProtocolBuffers)                                                                                

## Compiler flags                                                                                            
if(CMAKE_COMPILER_IS_GNUCXX)                                                                                 
    set(CMAKE_CXX_FLAGS "-O2")                                                                               
    set(CMAKE_EXE_LINKER_FLAGS "-lsqlite3 -lrt -lpthread")                                                   
endif()                                                                                                      

target_link_libraries(complex                                                                                
  ${Boost_FILESYSTEM_LIBRARY}                                                                                
  ${Boost_SYSTEM_LIBRARY}                                                                                    
  ${PROTOBUF_LIBRARY}                                                                                        
)  

我做这样的事时就出问题了:

CMake Warning at complex/CMakeLists.txt:18 (find_package):
  Could not find module FindProtocolBuffers.cmake or a configuration file for
  package ProtocolBuffers.

  Adjust CMAKE_MODULE_PATH to find FindProtocolBuffers.cmake or set
  ProtocolBuffers_DIR to the directory containing a CMake configuration file
  for ProtocolBuffers.  The file will have one of the following names:

    ProtocolBuffersConfig.cmake
    protocolbuffers-config.cmake
提问于
用户回答回答于

你可以试试CMake的FindProtobuf模块:

include(FindProtobuf)
find_package(Protobuf REQUIRED)
include_directories(${PROTOBUF_INCLUDE_DIR})
...
target_link_libraries(complex
    ${Boost_FILESYSTEM_LIBRARY}
    ${Boost_SYSTEM_LIBRARY}
    ${PROTOBUF_LIBRARY}
)

最后运行下面的代码:

cmake --help-module FindProtobuf

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